Use the vsepr theory to predict the molecular geometry of the following molecules:
(remember, you may need to draw the lewis structure before making a prediction.)
hi
cbr4
ch2cl2
sf2
pcl3
Answers
Here are the molecular geometries for each molecule after drawing their Lewis structures:
1. HICl₄: The central I is surrounded by six electron pairs - four bonding pairs and two lone pairs. Therefore, its molecular geometry is octahedral.
2. CH₂Cl₂: The central atom C has 2 single bonds with 2 H atoms and 2 single bonds with 2 Cl atoms, with no lone pairs. The molecular geometry is also tetrahedral.
3. SF₂: The central atom S has 2 single bonds with 2 F atoms and 2 lone pairs. This gives the molecule a bent molecular geometry.
4. PCl₃: The central atom P has 3 single bonds with 3 Cl atoms and 1 lone pair. This results in a trigonal pyramidal molecular geometry.
To predict the molecular geometry using VSEPR theory, we need to first draw the Lewis structure for each molecule.
1. HICl₄:
The Lewis structure for HICl₄ is as follows:
H-I-Cl
|
Cl
|
Cl
According to VSEPR theory, the molecule has an octahedral shape. The central iodine atom is surrounded by six electron pairs - four bonding pairs and two lone pairs. The bonding pairs repel each other and try to move as far apart as possible, resulting in an octahedral shape.
2. CH₂Cl₂:
The Lewis structure for CH₂Cl₂ is as follows:
H- C - H
|
Cl
|
Cl
According to VSEPR theory, the molecule has a tetrahedral shape. The central carbon atom is surrounded by four electron pairs - two bonding pairs and two lone pairs. The bonding pairs repel each other and try to move as far apart as possible, resulting in a tetrahedral shape.
3. SF₂:
The Lewis structure for SF₂ is as follows:
F
|\
S--F
|/
F
According to VSEPR theory, the molecule has a bent shape. The central sulfur atom is surrounded by three electron pairs - two bonding pairs and one lone pair. The bonding pairs repel each other and try to move as far apart as possible, resulting in a bent shape.
4. PCl₃:
The Lewis structure for PCl₃ is as follows:
Cl
|
Cl - P - Cl
|
According to VSEPR theory, the molecule has a trigonal pyramidal shape. The central phosphorus atom is surrounded by four electron pairs - three bonding pairs and one lone pair. The bonding pairs repel each other and try to move as far apart as possible, resulting in a trigonal pyramidal shape.
Learn more about VSEPR theory at https://brainly.com/question/17177984
#SPJ11
Related Questions
A star evolves off the main sequence when:
1. helium is exhausted in the stellar core.
2. hydrogen is exhausted in the stellar core.
3. it ejects a planetary nebula.
Our solar system’s gas giant planets (and those of other solar systems) did not become stars because:
1. planets are solid objects while stars are gaseous.
2. they are not massive enough to generate the high temperatures and
pressures necessary to start hydrogen fusion in the core.
3. they are not massive enough to generate the high temperatures and
pressures necessary to start helium fusion in the core.
Answers
A star evolves off the main sequence when helium is exhausted in the stellar core.Our solar system’s gas giant planets (and those of other solar systems) did not become stars because they are not massive enough to generate the high temperatures and pressures necessary to start hydrogen fusion in the core.
Stars evolve off the main sequence when the nuclear fusion in their cores is no longer capable of supplying sufficient energy to maintain the gravitational energy, causing it to contract and the outer layers to expand and cool. When hydrogen runs out in the core of a star, the core shrinks and heats up and the outer layers expand, resulting in a red giant. However, when helium is consumed in the core, the core collapses and heats up, causing the outer envelope to get expelled, and the core evolves into a white dwarf.
A gas giant planet's temperature and pressure aren't high enough to generate fusion. They aren't dense enough to generate the heat required for nuclear fusion. Therefore, gas giant planets do not generate their own light and heat in the same way as stars. They can emit more energy than they obtain from the sun if they have a significant atmosphere. The planets in the solar system, such as Jupiter and Saturn, are examples of gas giants.
learn more about gravitational energy
https://brainly.com/question/15896499
#SPJ11
The object of a general chemistry experiment is to determine the amount (in millilitres [mL]) of sodium hydroxide (NaOH) solution needed to neutralize 1 g of a specified acid. This will be an exact amount, but when the experiment is run in the laboratory, variation will occur as the result of experimental error. Three titrations are made using phenolphthalein as an indicator of the neutrality of the solution (pH equals 7 for a neutral solution). The three volumes of NaOH required to attain a pH of 7 in each of the three titrations are as follows: 82.16, 75.79, and 75.43 mL. Use a 99% confidence interval to estimate the mean number of millilitres required to neutralize 1 g of the acid. (Round your answers to three decimal places.)
to mL
Answers
The answer is (70.35, 84.57) mL.
The three volumes of NaOH required to attain a pH of 7 in each of the three titrations are: 82.16, 75.79, and 75.43 mL. To estimate the mean number of milliliters required to neutralize 1 gram of the acid, a 99 percent confidence interval will be used. Let's calculate the sample mean, sample standard deviation, and margin of error using the provided data.
Sample standard deviation:
Sample Mean The sample mean of a dataset is defined as the sum of all the data points divided by the number of data points. So the sample mean will be: (82.16+75.79+75.43) / 3 = 77.46 mL. Sample Standard Deviation The sample standard deviation (s) is defined as the square root of the sample variance. To calculate s, we need to first compute the sample variance (s²):s² = ∑(x - μ)² / (n - 1)where x is the value of the observation, μ is the sample mean, and n is the sample size.s² = [(82.16 - 77.46)² + (75.79 - 77.46)² + (75.43 - 77.46)²] / (3 - 1)s² = [20.4 + 6.74 + 5.84] / 2s² = 16.49s = sqrt(16.49) = 4.06 mL.
Marginal Error The formula for the margin of error for a confidence interval for the mean is:
margin of error = t (α/2) * (s / sqrt(n)) where t(α/2) is the critical value of the t-distribution with n-1 degrees of freedom and a level of significance of α/2 (in this case, α/2 = 0.005).s is the sample standard deviation that we computed earlier. n is the sample size (in this case, n = 3). margin of error = t(α/2) * (s / sqrt(n))margin of error = 3.182 * (4.06 / sqrt(3)) = 7.11 mL. The margin of error is 7.11 mL. Confidence Interval The confidence interval formula for a population mean is: sample mean - margin of error < μ < sample mean + margin of error where μ is the population mean and sample mean is the value obtained from the sample.μ = 77.46 - 7.11 < μ < 77.46 + 7.11Thus, the 99% confidence interval for the mean number of milliliters needed to neutralize 1 gram of the acid is (70.35, 84.57) mL (rounded to three decimal places).Therefore, the answer is (70.35, 84.57) mL.
Read more about standard deviation at; brainly.com/question/475676
#SPJ11
Which paragraph from the article explains why the ultracool dwarf star discovery is so
significant to the search for other signs of life?
The system's host star, called TRAPPIST-1, is what is known as an ultracool dwarf. It is about
one-tenth the size of our sun and just a bit bigger than Jupiter.
Going forward, the authors plan to use even more powerful telescopes to analyze the
TRAPPIST-1 system. The Hubble Space Telescope will point its powerful lens toward the
ultracool dwarf star.
O "Systems around these tiny stars are the only places where we can detect life on an Earth-
sized exoplanet with our current technology," Gillon said in a statement. "If we want to find
life elsewhere in the Universe, this is where we should look."
O Ultracool dwarfs make up about 15 percent of the astronomical objects in our immediate
neighborhood, but until now, no one had ever discovered a planet orbiting one.
Answers
Answer:
It is ultracool dwarfs make up about 15% of the astronomical objects.................blah blah blah
Explanation:
took test
The pH of dil.Hcl is____ and the solution is_____
Answers
Answer:
pH of HCl solution is 1.52, which suggests that dilute HCl solution is very acidic in nature.
What is the mass number of an element?
A. Mass number is the mass of the protons in the nucleus.
B. Mass number is the number of protons in the nucleus.
• C. Mass number is the mass of the most abundant isotope.
D. Mass number is the atomic mass of a particular isotope.
Answers
Answer:
D. Mass number is the atomic mass of a particular isotope.
Explanation:
you have one mole of each of these atoms: carbon-12, oxygen-16, and uranium-235. Which substance has more atoms
Answers
One mole of each element contains Avogadro's number of atoms, which is 6.022 x 10^23 atoms. Therefore, all three substances have the same number of atoms, which is 6.022 x 10^23 atoms.
What mass of ammonia can be made from 20.0 g of hydrogen?
3H2 + N2 -> 2NH3
Answers
Answer:
20.0 g H2 x 1 mole H2/2g = 10.0 moles
moles NH3 = 10.0 mol H2 x 2 mol NH3/3 mol H2=6.67 moles
mass NH3 = 6.67 moles x 17g/mol = 113 grams
How many moles are in 3.25 x 1025 molecules of H2O?
Answers
Answer:
\(27.72 g\)
Explanation:
The relationship between the number of particles and the number of mole of a substance is given by the equation N = n L ; where N is the number of particles, n is the number of mole, and L is Avogadro's constant.
what are the 9 properties of minerals and explain each property?
Answers
Answer:
hardness-Hardness is the ability of a material to resist deformation
luster-the way light interacts with the surface of a crystal
color-the quality of an object or substance with respect to light reflected by the object
streak- the color of the powder produced when it is dragged across an un-weathered surface.
specif gravity-the density of that object divided by the density of water cleavage -the tendency of a mineral to break along smooth planes
fracture-any separation in a geologic formation
tenacity-refers to a mineral's toughness or resistance to breaking or being deformed.
lol sorry that took awhile
How do we solve this? I got B but answer key says A
Answers
The concentration of NH3 at equillibirium is 0.00010M. Option A.
Ammonium nitrate is formed when nitric acid reacts with ammonia. It is a white crystalline solid consisting of ammonium ions and nitrate ions. Soluble in water, but does not form hydrates. Ammonia is directly neutralized with sulfuric acid to produce ammonium sulfate.
The neutralization evaporator and crystallizer are connected so that the heat released during neutralization is used to evaporate the water in the ammonium sulfate slurry. These units operate under partial vacuum. Nitric acid pH neutralization is common and any inorganic base such as sodium hydroxide or lime can be used. Ammonia gas reacts with hydrogen chloride gas to form ammonium chloride.
Learn more about Nitrous acid here:-https://brainly.com/question/25752475
#SPJ9
EXTRA POINTS.
WILL MARK BRAINIEST.
How many grams of AgCl are produced from 167 grams of AgNO3?
Answers
Answer:
1+2=5
Explanation:
1+2=5
Which of the following(s) is/are incorrect about the convexity term of a bond:
Group of answer choices
Convexity is always positive for a plain-vanilla bond..
We can improve the estimation of a price change with regard to a change in interest rates by accounting for the convexity of the bond.
Convexity has high value when investors expect that market yields will not change much.
Answers
The correct answer is "Convexity has high value when investors expect that market yields will not change much." This statement is incorrect about the convexity term of a bond.
Convexity is the curvature of the price-yield relationship of a bond and a measure of how bond prices react to interest rate shifts.
Convexity is a term used in bond markets to describe the shape of a bond's yield curve as it changes in response to a shift in interest rates.
Bond traders use the convexity term to estimate the effect of interest rate changes on bond prices more precisely.
Bond traders use the term convexity to measure the rate of change of duration, which is a measure of a bond's interest rate sensitivity.
Convexity term and its features Convexity is always positive for a plain-vanilla bond.
We can improve the estimation of a price change with regard to a change in interest rates by accounting for the convexity of the bond.
Convexity is higher when market yields are unstable or when the bond has more extended maturity and lower coupon rates.
Thus, the correct statement about the convexity term of a bond is:
Convexity is higher when market yields are unstable or when the bond has more extended maturity and lower coupon rates.
To know more about Convexity visit;
https://brainly.com/question/31834216
#SPJ11
2. Predict the shift in the reaction with each stress shift rt, shift left, or no
HEAT + Ti(s) + 2C1 (g)
a. CI, (g) is added to the system.
b. TiCk (g) is removed from the system.
TiCI (g)
c. The temperature of the container is decreased.
d. The pressure of the container is increased.,
e. Ti(s) is added to the system.
Answers
b. The removal of TiCl(k) from the system will shift the reaction right, towards the products, to counteract the decrease in the concentration of TiCl(k).
c. Decreasing the temperature of the container will shift the reaction to the right, towards the products, to counteract the decrease in kinetic energy of the system.
d. Increasing the pressure of the container will shift the reaction to the left, towards the reactants, to counteract the increase in pressure caused by the decrease in volume.
e. Adding Ti(s) to the system will not cause a shift in the reaction because Ti(s) is not involved in the reaction.
Calculate the molar solubility of agbr in 2.8×10−2 m agno3 solution. the ksp of agbr is 5.0 * 10-13
Answers
The molar solubility of \(AgBr\) in \(2.8 x 10^-2 M AgNO3\) solution is \(7.1 x 10^-7 M\).
To calculate the molar solubility of \(AgBr\) in \(2.8 x 10^-2 M AgNO3\) solution, we need to use the common ion effect. The \(Ag+\) ion is a common ion in both \(AgBr and AgNO3\). When we add \(AgNO3\) to a solution containing AgBr, it adds more \(Ag+\) ions to the solution and causes a shift in the equilibrium to the left. The solubility of \(AgBr\)decreases due to this effect.
The balanced equation for the dissolution of \(AgBr\) is:
\(AgBr(s) ⇌ Ag+(aq) + Br-(aq)\)
The Ksp expression for AgBr is:
Ksp = [Ag+][Br-] = 5.0 x 10^-13
Let x be the molar solubility of \(AgBr\)in \(2.8 x 10^-2 M AgNO3\)solution. Then the concentration of \(Ag+\) ion is\([Ag+] = 2.8 x 10^-2 + x\), and the concentration of \(Br-\) ion is\([Br-] = x\).
Substituting these values into the Ksp expression, we get:
\(Ksp = (2.8 x 10^-2 + x)(x) = 5.0 x 10^-13\)
Simplifying the equation and neglecting x in comparison to \(2.8 x 10^-2\), we get:
\(x^2 = 5.0 x 10^-13x = sqrt(5.0 x 10^-13) = 7.1 x 10^-7 M\)
To know more about molar solubility refer to-
https://brainly.com/question/28170449
#SPJ11
3 miles of NaCl in 12 liters of water
What is the molarity
Answers
Answer:
\(12 \: litres \: contain \: 3 \: \: moles \: of \: sodium \: chloride \\ 1 \: litre \: will \: contain \: \frac{(1 \times 3)}{12} moles \\ = 0.25 \: mol \: {l}^{ - 1} \)
Explanation:
\(12 \: litres \: contain \: 3 \: \: moles \: of \: sodium \: chloride \\ 1 \: litre \: will \: contain \: \frac{(1 \times 3)}{12} moles \\ = 0.25 \: mol \: {l}^{ - 1} \\ or : 0.25 \: M\)
A fire is an example of an exothermic reaction. Which of the following best
supports that statement?
A. The fire is creating energy.
B. The fire is releasing energy.
C. The fire is capturing energy.
D. The fire is destroying energy.
Answers
Answer: B. Fire is releasing energy
Explanation:
What is the salt produced in the stomach when calcium carbonate reacts with and neutralizes excess hydrochloric acid?
Answers
The salt CaCl2 (calcium chloride) and water (H2O) are formed in this reaction. Also formed is the gas carbon dioxide (CO2) which may cause a bloated feeling in the stomach. The acid that is secreted in your stomach is approximately 0.1 M (moles per liter) hydrochloric acid.
I hope it helps ●~●
______ is a water-soluble vitamin that is especially important in amino acid metabolism, and is a coenzyme in over 100 chemical reactions.
Answers
Vitamin B-6 is the water-soluble vitamin important in amino acid metabolism, and is a coenzyme in over 100 chemical reactions.
What is a vitamin?Vitamins are organic molecules, essential micronutrients that organisms need in small amounts for the proper functioning of their metabolism. Essential nutrients cannot be synthesized by the body or are not available in sufficient amounts and must be obtained from food.
The vitamins are classified as either fat-soluble (vitamins A, D, E, K) or water-soluble (vitamins B, C). The difference between these two groups determines how each vitamin functions in the body. Water-soluble vitamins are absorbed quickly and excess is released, whereas fat-soluble vitamins dissolve slowly and excess is stored in the liver, means that it may cause problems.
To know more about Vitamin B visit:
https://brainly.com/question/24324739
#SPJ4
The maximum water vapor that air can hold at 30°C is about 30 grams/cubic meter. If the humidity of the air is currently 6 grams/cubic meter at the same temperature, the relative humidity is
Answers
Please help I’ll put u Brainlyiest.
Answers
Answer:
it should be the stamen but to be sure look up the structure of a flower
determine the wavelength of the light emitted when the electron in a hydrogen atom undergoes a transition from n
Answers
The wavelength of light emitted when the electron in a hydrogen atom undergoes a transition from n is 486 nm.
What is wavelength?
Forms of electromagnetic radiation, such as radio waves, light waves, and infrared (thermal) waves, create unique patterns as they travel through space. Each wave has a specific shape and length. The distance between peaks (high points) is called the wavelength.
Therefore, The wavelength of light emitted when the electron in a hydrogen atom undergoes a transition from n is 486 nm. Forms of electromagnetic radiation, such as radio waves, light waves, and infrared (thermal) waves, create unique patterns as they travel through space. Each wave has a specific shape and length.
To learn more about wavelength refer the given link:-
https://brainly.com/question/9350992
#SPJ4
PLS FAST WILL GIVE BRAINLIEST!! Discuss the difference between extensive and intensive properties.
Answers
Explanation:
An extensive property is a property that depends on the amount of matter in a sample. Mass and volume are examples of extensive properties. An intensive property is a property of matter that depends only on the type of matter in a sample and not on the amount.
Mark me as brainliest please
A zinc atom in its ground state has how many unpaired electrons?.
Answers
Explanation:
the ground state of zinc is
Ar3d¹⁰4s²
thus it has no unpaired electrons
which methods are used for making salts name them and give examples????
Answers
Answer:
HAHAH imagine using brainly... just be big brain like me and know all this!!
Explanation:
Answer:
Neutralization method.
Explanation:
NaOH +HCl⇒NaCl+H₂O
What is the formula for Mn+2, Br
Answers
Answer:
MnBr₂
Explanation:
give two examples of energy transfer by conduction between two
objects
Answers
Bringing water to the boil in an electric kettle
Please help me out if your good at science:)ill mark brainliest if correct
A. It helps people stay in touch with friends who live far away.
B. It helps track objects in motion.
C. It helps see microscopic cells at work.
D. It helps diagnose health problems.
Answers
8. Some people practice brining their turkey. This means they let it soak in a solution overnight. The solution diffuses into the turkey. This means that the turkey is placed into a ___________________ solution.
Answers
Some people practice brining their turkey. This means they let it soak in a solution overnight. The solution diffuses into the turkey. This means that the turkey is placed into a hypertonic solution.
What is a hypertonic solution?A hypotonic solution is described as a solution that has lower osmotic pressure than another solution to which it is compared.
The concept of tonicity helps us understand that the saltwater we use to brine the turkey is typically considered hypertonic solution because it has a greater concentration of solutes than the liquid found inside the cells.
Learn more about hypertonic solutions at: https://brainly.com/question/4237735
#SPJ1
Miso is a fermented Japanese condiment made primarily from ________, which is salted and fermented with ________ for two months.
a. cabbage; Leuconostoc
b. rice; Leuconostoc
c. cabbage; Bacillus
d. cabbage; Aspergillus oryzae
e. ground soy and rice; Aspergillus oryzae
Answers
Miso is a fermented Japanese condiment made primarily from rice, which is salted and fermented with ground soy for two months. The correct answer is (e)
Miso is a fermented Japanese condiment primarily made from ground soybeans and rice. The soybeans and rice are combined and fermented with the help of a specific mold called Aspergillus oryzae. This mold is responsible for the fermentation process that breaks down the proteins and carbohydrates in the soy and rice, leading to the development of the unique flavors and aromas of miso. Cabbage is not the primary ingredient in miso. Rice alone is not the main component. The bacteria mentioned, Bacillus, is not typically associated with miso fermentation. Hence The correct option is (e)
To know more about fermentation, here
brainly.com/question/13050729
#SPJ4
What is the new volume of a 4.00-liter sample of CO(g) when its pressure changes from 10.0 kPa to 70.0 kPa?
O A 0.571 mL
O
B
O
1.75 mL
O € 4.00 mL
D 175 mL
Answers
The new volume of CO when its pressure increase from 10.0kPa to 70.0 kPa will be 0.571mL
We know that, Volume and pressure are not inversely proportional to one another, in contrast to the P-T and V-T correlations. Instead, P and V show inverse proportionality, which means that as pressure rises, gas volume falls. In math, this can be expressed as:
P₁V₁= P₂V₂
10× 4= 70V₂
40 = 70 V₂
V₂ = 40/70
V₂ = 0.571 mL
When held at a fixed temperature, the volume of a given quantity of gas is inversely proportional to the pressure at which it is measured.
So, the final volume of the Carbon monoxide sample will be 0.571mL.
To know more about PV relationship, please refer:
https://brainly.com/question/8118447
#SPJ1