What volume of a 0. 452 m naoh solution is needed to neutralize 85. 0 ml of a 0. 176 m solution of h2so4? show your work.

The space filling model shows all the atoms that are  involved while the ball and stick model shows the inter connecting bonds in the compound.

The space filling model and the ball-and-stick model are two commonly used representations of molecules in chemistry.

The ball-and-stick model represents the atoms of a molecule as balls and the chemical bonds between them as sticks. The size of the balls and the length of the sticks are proportional to the size of the atoms and the length of the bonds, respectively. This model gives a good idea of the relative positions of the atoms in the molecule and the angles between the bonds, but it does not show the relative sizes of the atoms or the amount of empty space between them.

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This model represent solid state.

solid states of matter

Solids, liquids, gases, and plasma are the four basic states of matter. The artificial state is the sixth. the Bose-Einstein condensates

The fourth and most basic state of matter is solid. The least kinetic energy is held by the molecules that are tightly packed together in a solid. A solid's structural stiffness and resistance to a force applied to its surface define it.

One of the several configurations in which matter can exist is a state of matter. In daily life, we can observe four different states of matter: solid, liquid, gas, and plasma. There are numerous known intermediate states, including liquid crystal, while others, like Bose-Einstein condensates (in extremely cold temperatures), neutron-degenerate matter (in extremely high densities), and quark-gluon plasma, can only exist under very specific circumstances (at extremely high energy).

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The concentration of H₃O⁺ ions in the aqueous solution is approximately \(1.62 \times 10^{(-2)\) M.To calculate the [H3O+] of the aqueous solution with a pH of 1.79, we need to use the formula \(:pH = -log[H3O+]\)

Rearranging the formula, we get:
\([H3O+] = 10^{(-pH)\)
Plugging in the given pH value, we get:
\([H3O+] = 10^{(-1.79)\\[H3O+] = 1.26 x 10^{(-2) }M\)
Therefore, the [H3O+] of the aqueous solution is \(1.26\times 10^{(-2)\)M.
The terms "solution" and "aqueous" indicate that we're dealing with a liquid mixture, and "pH" measures the acidity or alkalinity of the solution.
The pH formula is:
pH = -log₁₀[H₃O⁺]
Given that the pH of the solution is 1.79, you can solve for the concentration of H₃O⁺ ions ([H₃O⁺]):
1.79 = -log₁₀[H₃O⁺]
To find [H₃O⁺], follow these steps:
1. Rewrite the equation to isolate [H₃O⁺]:
-log₁₀[H₃O⁺] = 1.79
2. Take the inverse log of both sides of the equation:
\([H₃O⁺] = 10^{(-1.79)\)
3. Calculate the concentration:
\([H₃O⁺] =1.62 \times 10^{(-2) }M\)

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Taking into account the definition of percentage composition, the percent composition of carbon in this sample is 62.17%.

The Percentage Composition is a measure of the amount of mass that an element occupies in a compound and indicates the percentage by mass of each element that is part of a compound.

Then, the percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.

In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.

The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

\(percentageby mass= \frac{mass of solute}{mass of solution}x100\)

In this case, you know:

Replacing:

\(percentageby mass= \frac{46.63 g}{75 g}x100\)

Solving:

percentage by mass= 62.17 %

Finally, the percent composition of carbon in this sample is 62.17%.

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50 ml of 0.20 M H₃PO₄ is needed to react with 100 ml of 0.10 M NaOH.

The balanced chemical equation for the reaction between H₃PO₄ and NaOH is H₃PO₄ + 3 NaOH --> Na₃PO₄ + 3 H₂O.

This equation indicates that one mole of H₃PO₄ reacts with three moles of NaOH to form one mole of Na₃PO₄ and three moles of H2O.

To determine the amount of 0.20 M H₃PO₄ needed to react with 100 ml of 0.10 M NaOH, we need to use the formula M1V1 = M2V2.

Here, M1 is 0.20 M, V1 is the volume of H₃PO₄ needed (unknown), M2 is 0.10 M, and V2 is 100 ml.

By rearranging the formula, we get

V1 = (M2V2) / M1, which is equal to (0.10 M x 100 ml) / 0.20 M = 50 ml.

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The corresponding formula equation is:

Upper Ca (upper OH) subscript 2 (s) plus 2 upper H upper Cl (l) right arrow upper Ca upper Cl subscript 2 (aq) plus 2 upper H subscript 2 upper O (l)

To obtain the word equation, we shall write out the balanced molecular equation. This is given below:

Calcium hydroxide => Ca(OH)₂

Hydrochloric => HCl

Calcium chloride => CaCl₂

Water => H₂O

Calcium hydroxide + Hydrochloric —> Calcium chloride + water

Ca(OH)₂ + HCl —> CaCl₂ + H₂O

There are 2 atoms of Cl on the right side and 1 atom on the left. It can be balance by writing 2 before HCl as shown below:

Ca(OH)₂ + 2HCl —> CaCl₂ + H₂O

There are a total of 4 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 2 before H₂O as shown below:

Ca(OH)₂ + 2HCl —> CaCl₂ + 2H₂O

Now, the equation is balanced.

Thus, the corresponding word equation is:

Upper Ca (upper OH) subscript 2 (s) plus 2 upper H upper Cl (l) right arrow upper Ca upper Cl subscript 2 (aq) plus 2 upper H subscript 2 upper O (l)

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Answer:

Upper Ca (upper OH) subscript 2 (s) plus 2 upper H upper Cl (l) right arrow upper Ca upper Cl subscript 2 (aq) plus 2 upper H subscript 2 upper O (l)

The statement that best compares the boiling points of water and ethanol is option  A: Water has a higher boiling point because it has more hydrogen bonds.

Water and ethanol are both compounds made up of hydrogen and oxygen atoms, but the way these atoms are arranged and bonded together gives them different physical and chemical properties.

Therefore, Water has a higher boiling point than ethanol because it forms stronger hydrogen bonds between its molecules. A hydrogen bond is a type of chemical bond that forms between a hydrogen atom and a highly electronegative atom, like oxygen or nitrogen.

In water, each molecule has two hydrogen atoms and one oxygen atom, so each molecule can form hydrogen bonds with up to four other water molecules. This creates a three-dimensional network of hydrogen-bonded water molecules that are held together more tightly than the molecules in ethanol.

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Answer:

the answer is A, they are measured in kilograms

The molecular formula of a compound is a whole number multiple of its empirical formula. The empirical formula of the hydrocarbon is C₄H₉.

The empirical formula of a compound can be defined as the formula which gives the simplest whole number ratio of atoms of various elements present in one molecule of the compound.

Here moles of 'C' = moles 'CO₂' = 6.16 / 44 = 0.14 moles

Moles of 'H' = 2 × moles 'H₂O' = 2 × 2.84/18.02 = 0.315 moles

Divide both number of moles by 0.14. Then we get

1 mol 'C' and 2.25 mol 'H'

Multiply both with 4 to obtain a whole number.

Then the number of carbon is 4 and that of hydrogen is 9.

Thus the empirical formula is C₄H₉.

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in order for the wooden to waft in fuel, it needs to have a density much less than the density of fuel and so as for it to sink in ethanol, it must have a greater density than the density of ethanol however ethanol is denser than gasoline therefore if it sinks in ethanol it has to also sink in fuel.

If the wood pressure is much less than the object's weight, the object will sink. So, the piece of timber floats in water whilst located in ethanol it sinks. ethanol is lighter than water so it needs to drift to the floor of the water but this isn't always the actual case. The ethanol in water neither sinks nor floats, alternatively it mixes thoroughly to form a homogenous solution. The purpose of this blending of two solutions is hydrogen bonding between ethanol and water.

Density is a measure of how heavy something is compared to its size. If an item is greater dense than water it will sink while placed in water, and if it's miles much less dense than water it'll float. Density is a functioning asset of a substance and doesn't depend on the amount of substance.

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The approximate balance in the account at the end of 6 years is $159,074. Rounded to the nearest dollar, it is $159,074.

Assuming that the annual rate of $20,000 is deposited at the beginning of each year, the total amount deposited over 6 years would be $120,000. With continuous compounding at 5% interest rate, the formula to calculate the balance in the account after 6 years is:
A = Pe^(rt)
Where A is the balance, P is the principal (amount deposited), e is the mathematical constant approximately equal to 2.71828, r is the interest rate in decimal form, and t is the time in years.
Plugging in the values, we get:
A = $120,000e^(0.05*6)
A = $159,073.51
Therefore, the approximate balance in the account at the end of 6 years is $159,074. Rounded to the nearest dollar, it is $159,074.

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Answer:

there are 18

Explanation:

Answer:

A compound supstence is any chemcail compond

Explanation:

The calculated value is -415 J.

To calculate the quantity of heat emitted during the cooling of the ethylene glycol. A coolant is a material that lowers or controls the temperature of a system. It is commonly a liquid or gas. High thermal capacity, low viscosity, low cost, non-toxic, chemically inert, and neither causes nor promotes cooling system corrosion are characteristics of the perfect coolant.

The mass of ethylene glycol is m = 3.65 kg or 3650 g.

Cs = 2.42 j/(g·°c) the difference in the coolant's temperature and the substance's specific heat capacity

When we enter the numbers into the equation, we discover

Q= 3650*2.42/-47

=415 J

Due to the system's discharge of heat, the sign is also negative.

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Increasing LED brightness with a lampshade or reflection and choosing LED lights with high luminous efficiency can be useful  to obtain a brighter lamp.

Lamp, lighting device, initially a jar housing a flame soaked in flammable substance, and later such light-producing devices as gas and electrical lamps.

The light was developed at least 70,000 years ago. Originally, it was a sunken rock filled in moss or other absorbent substance, saturated in animal fat, and burned. The ways to obtain a brighter lamp are

Increasing LED brightness with a lampshade or reflection.

To boost brightness, use greater color temperature LED lights.

Choosing LED lights with high luminous efficiency.

With increased voltage, LED lights get brighter.

Therefore, in above ways we can get brighter lamp.

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If a wave has a frequency of 7.20 x 10^14 Hz and travels at the speed of light (speed of light = 3.0 x 10^8 m/s), the wavelength is 0.42 × 10⁻⁶ m.

The term wavelength of light is defined as the distance between the two successive crests or troughs of the light wave. Wavelength is denoted by the Greek letter lambda (λ).

Given:

frequency  = 7.20 x 10^14 Hz

speed of light = 3.0 x 10^8 m/s

Wavelength = ?

Wavelength = speed of light/ frequency

λ = ν / f

= 3.0 x 10^8 / 7.20 x 10^14

= 0.42 × 10⁻⁶ m

Thus, if a wave has a frequency of 7.20 x 10^14 Hz and travels at the speed of light (speed of light = 3.0 x 10^8 m/s), the wavelength is 0.42 × 10⁻⁶ m.

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Answer:

10,765 g As

Explanation:

Answer:

4) 0.5507 Mol Ar

5) 44.548 Mol AgNO3

6) 2.16107 Mol Li

Explanation:

Divide = grams to mol and mol to molecules

Multiply = molecules to mol and mol to grams.

3) 22 g of Ar           1 mol                   22

-------------------- * ---------------------- = ------------ (turn to decimal) = 0.5507 Mol Ar

                           39.948 g of Ar     39.948

4) AgNO3 = (Ag;  39.948) (N; 14.007) (O^3; 48)  

39.948 + 14.007 + 48 = 101.955

   7.4 x 10^23 Mc    6.02 x 10^23 Mc

  ---------------------- * ------------------------- = 44.548 Mol AgNO3

                                        1 mol        

5)

15g           1 Mol             15

------- * ------------------- = --------- (turn to decimal) = 2.16107 Mol Li

            6.941 g of Li     6.941

Answer:

Explanation:

The pH of a solution can be found by using the formula

\(pH = - log ([ {H}^{+} ])\)

From the question

[H+] = 0.045 M

We have

\(pH = - log(0.045) \\ = 1.346787...\)

We have the final answer as

Hope this helps you

Answer:

1.35

Explanation:

Answer:

Since you are producing 3.6 mol CO2, you can calculate the starting moles of CH4 with the simple mole-to-mole ratio: 1 mol CH4 / 1 mol CO2 as a conversion factor. Taking 3.6 mol CO2 x 1 mol CH4 / 1 mol CO2 = 3.6 mol CH4 (after canceling out the moles of CO2 on the top and bottom of the calculation)

Explanation:

The battery also includes a separator, which helps keep the anode and cathode apart, as well as current collectors, which conduct the flow of electrons inside the battery.

In a lithium-ion battery, the lithium ions themselves constitute the electrolyte. Lithium-ion batteries use a lithium ion to transport electrons between the anode and cathode electrodes when they charge and discharge. Lithium-ion batteries, unlike conventional batteries, do not have a liquid electrolyte, but instead, they use a porous electrolyte that can transport lithium ions from one electrode to the other while still preventing the electrodes from touching. The anode and cathode of the battery are separated by a separator. The lithium ions themselves constitute the electrolyte in lithium-ion batteries.In general, a lithium-ion battery comprises a cathode, anode, and electrolyte. The anode is made of carbon, and the cathode is made of lithium cobalt oxide or a similar lithium-based compound. The battery also includes a separator, which helps keep the anode and cathode apart, as well as current collectors, which conduct the flow of electrons inside the battery.

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Answer:Hi! I hope this will help you with your question, whether this is an assignment or not. The answer that I get is 0.033 concentration.

If 0.0025 mol NaNo3 forms during the reaction, the concentration of NaNO3 in the final solution should be 0.033.

Explanation:

The IR spectrum of Acetylferrocene will differ from that of Ferrocene because of the carbonyl stretching and bending modes that appear in the Acetylferrocene.

The IR spectrum of Acetylferrocene will differ from that of Ferrocene due to the carbonyl stretching and bending modes that appear in the Acetylferrocene.

Ferrocene and Acetylferrocene have similar IR spectra since they both have the Fe-Cp stretching and bending modes. The acetyl group of Acetylferrocene is reflected by an intense band in the 1700-1750 cm-1 range, which is due to carbonyl stretching.

                                     In Acetylferrocene, the IR spectra are dominated by the presence of the acetyl group's vibration, resulting in a change in the frequency of stretching vibration from 200 to 220 cm−1. Another change in the IR spectra of Acetylferrocene is the presence of two bands due to C-O stretching at 1230-1260 cm-1 in addition to the appearance of a strong band due to C-H bending vibrations in the 1410-1450 cm-1 region.

                           Ferrocene does not have a carbonyl group, which is why it will not display the carbonyl stretching and bending vibrations in the IR spectra. This is the most significant difference between the two IR spectra. So, we can conclude that the IR spectrum of Acetylferrocene will differ from that of Ferrocene due to the presence of the carbonyl group.

Therefore,  The IR spectrum of Acetylferrocene will differ from that of Ferrocene because of the carbonyl stretching and bending modes that appear in the Acetylferrocene.

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Answer:

Explanation:Using the equation, PV=nRT, you can solve this problem.

P= 3.5 kPa V=? n= 0.55 moles of air T= 295K R= 8.314 (L kPa/mol K)

We use the constant rate of 8.314 because we are using kilopascals in this problem.

Using simple algebra we get-

V = (0.55 moles)(8.314 L kPa/mol k)(295 K) / 3.5 kPa

Using the calculator, we would get the answer of 385.4132857 L.

And whatever the significant figure is asked for, for example, 3 significant figures: the answer would be 385 liters.

Answer:

Aluminum Iodide

Potassium Nitride

Caesium Oxide

Lithium Bromide

Explanation:

Answer:

7681-52-9

Explanation:

i looked it up

Answer:

Explanation: