How many moles of barium(Ba) do we have if we have 1,000g?

 The empirical formula of the substance is CH.

The empirical formula represents the simplest, most reduced ratio of elements in a compound. It provides the relative number of atoms of each element present in a compound, without providing the exact arrangement or the actual number of atoms.

To determine the empirical formula, the masses or percentages of the elements in a compound are used. These values are converted into moles, and then the mole ratios are calculated. The resulting ratios give the smallest whole-number ratio of atoms in the compound.

Given that the substance contains 0.0923 grams of carbon (C) and 0.0077 grams of hydrogen (H),

The molar mass of carbon (C) is 12.01 g/mol, and the molar mass of hydrogen (H) is 1.01 g/mol.

Moles of carbon = 0.0923 g / 12.01 g/mol ≈ 0.00768 mol

Moles of hydrogen = 0.0077 g / 1.008 g/mol ≈ 0.00764 mol

So the simplest whole-number ratio of carbon to hydrogen by dividing both values by the smaller mole value (0.00764 mol in this case):

Carbon: 0.00768 mol / 0.00764 mol ≈ 1

Hydrogen: 0.00764 mol / 0.00764 mol = 1

Learn more about Empirical Formula, here:

https://brainly.com/question/32125056

#SPJ4

The alpha isomer of a carbohydrate has the anomeric OH on the same side of the  \(CH_{2}OH\) group (option A).

The alpha isomer of a carbohydrate has A) The anomeric OH on the same side of the \(CH_{2}OH\) group. This configuration is what differentiates it from the beta isomer, which has the anomeric OH on the opposite side of the  \(CH_{2}OH\) group. This means that the hydroxyl group (-OH) attached to the anomeric carbon (the carbon that is bonded to two oxygen atoms) is on the same side as the  \(CH_{2}OH\) group in the cyclic structure of the carbohydrate. The beta isomer, on the other hand, has the anomeric OH on the opposite side of the  \(CH_{2}OH\) group (option B). If there is no anomeric OH group, then it is not a cyclic carbohydrate and is instead an open-chain form (option C).

To know more about Carbohydrates:

https://brainly.com/question/14614055

#SPJ11

Beneath that (about 170 kilometers, or 106 miles, beneath the troposphere) lies the second deck product of ammonium hydrosulphide clouds. And below that, where temperatures are a balmy 32° F (zero° C), is the lowest deck wherein you'll discover clouds of water.

Temperature is a measure of the common kinetic electricity of the particles in a device. which means that temperature is associated with the motion of atoms, molecules, and different particles that make up count number. Temperature is normally measured in stages Celsius (°C) or Fahrenheit (°F), despite the fact that the Kelvin (ok) scale is likewise typically utilized in clinical packages.

Temperature plays a essential function in lots of chemical reactions and strategies. for instance, growing the temperature of a response can frequently accelerate the fee at which it takes place, as the increased strength of the debris allows them to collide more frequently and with more pressure. additionally, the temperature can have an effect on the solubility of substances in solvents, as well as the vapor pressure and boiling factor of drinks.

To learn more about Temperature visit here:

brainly.com/question/11464844

#SPJ4

The measure of the randomness of the system is the change in the entropy. The mixing of two gases and decomposition of the solid will increase the entropy.

Entropy is the disorderliness and the randomness of the system when the thermal energy is not present in a sufficient amount to initiate the reaction. In system A, when two gases are mixed then the entropy increases as the number of gaseous molecules increases.

In system B, when a solid powder gets decomposed to form a solid product and a gaseous product the entropy increases as along the solid particles the gas is also produced.

Therefore, in both the systems the entropy increases.

Learn more about entropy here:

https://brainly.com/question/27460189

#SPJ1

The volume of water in the container is 292.2 mL.

The molecules in water must be able to move more quickly in order for the temperature to rise, and in order to do this, the hydrogen bonds that bind them must be severed. These intermolecular interactions must be broken by the heat that water absorbs. Before the temperature of the water can rise.

We can used the formula:

Q = m * c * ΔT

Q = amount of heat absorbed by the water

m = mass of water

c = specific heat capacity of water

ΔT = change in temperature of the water

Given;

Q = 64.4 kJ

ΔT = (73.4 - 22.0) °C = 51.4 °C

c = 4.18 J/(g·°C)

Converting the units of Q to Joules:

Q = 64.4 kJ * 1000 J/kJ = 64400 J

Now:

m = Q / (c * ΔT)

m = 64400 J / (4.18 J/(g·°C) * 51.4 °C)

m = 292.2 g

The density of water:

Density = mass / volume

volume = mass / density

volume = 292.2 g / 1 g/mL = 292.2 mL

To know more about the volume visit:

https://brainly.com/question/28428181

#SPJ9

hello bro please set instar

Answer:

D

Explanation:

There are 2 oxygens on the reactants side (OH)2 but 4 on the products side (2H2O). You cannot get 2 oxygens out of nowhere, so it is not balanced.

Answer : The specific heat of the metal is, \(0.451J/g^oC\)

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

\(q_1=-q_2\)

\(m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)\)

where,

\(c_1\) = specific heat of metal = ?

\(c_2\) = specific heat of water = \(4.18J/g^oC\)

\(m_1\) = mass of metal = 50.0 g

\(m_2\) = mass of water  = 125 g

\(T_f\) = final temperature of mixture = \(29.3^oC\)

\(T_1\) = initial temperature of metal = \(115.0^oC\)

\(T_2\) = initial temperature of water = \(25.6^oC\)

Now put all the given values in the above formula, we get

\((50.0g)\times c_1\times (29.3-115.0)^oC=-[(125g)\times 4.18J/g^oC\times (29.3-25.6)^oC]\)

\(c_1=0.451J/g^oC\)

Therefore, the specific heat of the metal is, \(0.451J/g^oC\)

Answer:

вау, это кажется сложным, но я все равно не знаю

Answer:Energy from uranium harnessed for nuclear power:

Nuclear power is generated by the process of Fission. The nuclear energy is generated by splitting the atoms of uranium which creates a lot of heat which produces steam and the pressure from the steam is used by a turbine generator to create electricity.

This is how uranium is harnessed for nuclear power. The uranium fuel is arranged in such a manner that a fission chain reaction can take place the atoms can be broken down. The heat produced spins the turbine and the generator gains power.

Explanation:

Egg whites are simply made frothy by adding air during the whipping process. It's a physical shift as they are still eggs whites—a material that has not changed. Yet in a chemical transformation.

To put it another way, a chemical always consists of the same "substance." There are some substances in nature, like water. Other chemicals, including chlorine, are produced

All of these things are made of chemicals, some organic and others manmade, including air, water, iron, fuel, clothes, stones, equipment, plastics, plants, and food. Chemicals can be made up of several distinct chemicals or they might be specific chemical molecule like water. Nitrogen, carbon, water, carbon dioxide, and other substances are all present in air.

To know more about Chemical visit:

https://brainly.com/question/29447577

#SPJ4

Answer: 4.12

Explanation:

we know that the given mol is 8.23 mol and they are 2NaI and I2 so we will write the equation like this.

8.23mol NaI x 1mol of I2 ÷ 2molNaI = 4.115≅ 4.12 mol of I2

we placed NaI at the bottom to cancel out with the 8.23 mol of NaI

A. Ammonia is the limiting reactant.

B. Theoretical yield of urea is 215.3 kg.

C. Percent yield for the reaction is 86.0%

D. The mass of the excess carbon dioxide left is approximately 54.1 kg.

a) To identify the limiting reactant, we should compare the amount of products formed from each reactant. The chemical equation for the formation of urea \((NH_2CONH_2)\) by combining ammonia \((NH_3)\) and carbon dioxide \((CO_2)\) is as follows:

\(2 NH_3 + CO_2 - > NH_2CONH_2 + H_2O\)

The stoichiometry of the balanced equation indicates that the ratio of ammonia to urea is 2:1.

We can find the number of moles for each reactant using the following masses:

Moles of ammonia = 122.0 kg / 17.03 g/mol = 7.17 mol

Moles of carbon dioxide = 211.4 kg / 44.01 g/mol = 4.80 mol

It takes 14.34 moles of ammonia to react completely with the available carbon dioxide because the ratio of ammonia to urea is 2:1. But the amount of ammonia we have is less than we need - only 7.17 mol. As a result, ammonia is the limiting reactant.

b. Based on the limiting reactant, it is possible to calculate the theoretical yield of urea. We can use the moles of ammonia, which is the limiting reactant, to calculate the moles of urea:

Moles of urea = 7.17 mol / 2 = 3.58 mol

We can determine the theoretical yield of urea using the molar mass of urea (60.06 g/mol) as a starting point:

Theoretical yield of urea = 3.58 mol * 60.06 g/mol = 215.3 kg

C. The actual yield (185.1 kg) is calculated by dividing it by the theoretical yield (215.3 kg), then multiplying the result by 100%.

Percent yield = (185.1 kg / 215.3 kg) * 100% = 86.0%

D. We can calculate the amount of non-limiting reactant that has not reacted yet to determine the excess reactant. Since ammonia is the limiting reactant, we must determine how much excess carbon dioxide there is:

Moles of excess carbon dioxide = Moles of carbon dioxide initially - Moles of carbon dioxide used

= 4.80 mol - (7.17 mol / 2) = 1.23 mol

We can determine the mass of excess carbon dioxide using the molar mass of carbon dioxide (44.01 g/mol):

Excess carbon dioxide = 1.23 mol * 44.01 g/mol = 54.1 kg

Therefore, the mass of the excess carbon dioxide left is approximately 54.1 kg.

Learn more about Limiting reactant, here:

https://brainly.com/question/10090573

#SPJ4

Saccharin, an artificial sweetener that is 3000 times sweeter than sucrose, is composed of a) C₁₄H₁₀O₆N₂S₂.

45.90% carbon, 2.73% hydrogen, 26.23% oxygen, 7.65% nitrogen, and 17.49% sulfur. is the molecular formula of saccharin.

To determine the molecular formula of saccharin, we first need to calculate the empirical formula using the given percentages of each element.

Assuming we have 100 grams of saccharin, we have:

Carbon: 45.90 g / 12.01 g/mol = 3.82 mol

Hydrogen: 2.73 g / 1.01 g/mol = 2.70 mol

Oxygen: 26.23 g / 16.00 g/mol = 1.64 mol

Nitrogen: 7.65 g / 14.01 g/mol = 0.55 mol

Sulfur: 17.49 g / 32.07 g/mol = 0.55 mol

We can divide each value by the smallest one, which is 0.55 mol, to get the following ratios:

Carbon: 3.82 / 0.55 = 6.95

Hydrogen: 2.70 / 0.55 = 4.91

Oxygen: 1.64 / 0.55 = 2.98

Nitrogen: 0.55 / 0.55 = 1

Sulfur: 0.55 / 0.55 = 1

The resulting ratios are close to whole numbers, so we can assume the empirical formula to be C₇H₅NO₃S. To find the molecular formula, we need to determine the actual molecular mass of saccharin.

The empirical formula mass of C₇H₅NO₃S is approximately 183 g/mol. The molecular mass of saccharin is known to be around 452 g/mol, so we can calculate the ratio of the molecular mass to the empirical formula mass:

452 g/mol / 183 g/mol = 2.47

This means that the molecular formula is 2.47 times the empirical formula, or:

C₇H₅NO₃S * 2.47 = C₁₇H₁₃N₂O₅S

Therefore, the molecular formula of saccharin is (a) C₁₄H₁₀O₆N₂S₂. The other options (b) CSH,ONS, (c) C&H₉O₂NS, and (d) C;H₅O₃NS are not correct.

To know more about the saccharin refer here :

https://brainly.com/question/31703738#

#SPJ11

The volume of the irregular solid from the image that have been shown is  12 mL

To obtain the volume of the irregular solid;

a. Measure the initial volume of water in the cylinder.

b. Carefully lower the irregular solid into the water, ensuring it is fully submerged without trapping any air bubbles.

c. Record the new volume of water in the cylinder.

d. The volume of the irregular solid is equal to the difference between the final and initial water volumes.

The volume is;

32 mL - 20 mL = 12 mL

Learn more about irregular solid:https://brainly.com/question/31829216

#SPJ1

Propane produces more energy as compared to ethanol during burning.

Energy produce by ethanol is 10.45 kilojoules per gram whereas  propane release 46 kilojoules per gram of energy when burn so by comparing these two chemicals we can conclude that propane produces more energy as compared to ethanol during burning.

Learn more about ethanol here: https://brainly.com/question/281073

Answer:

physical change

Explanation:

it doesnt change it chemically

Answer:

Ripping paper is physical

Explanation:

The way you know if it is physical or not is does it change physically, any physical change

No chemical changes occurred because the chemical matter didn't change nor did the actual object, it's not like the paper turned into a hotdog so it would be physical (if that makes any sense ;))

The code to print factorial of a number is :

#include<iostream>

using namespace std;

int main() {

int num;

cout << "Enter the number to get the factorial" << endl;

 cin >> num;

 if (num == 0 || num == 1) {

  fact = 1;

  cout << fact;

 }

 else if (num > 2) {

  i = num - 1;

  while (i >= 1) {

   fact = num * i;

   num = fact;

   i--;

  }

  cout <<" Factorial is : "<< fact;

 }

}

If you need to learn more about Factorial code, click here

https://brainly.com/question/23612329?referrer=searchResults

#SPJ4

Answer:

How long has this blood been here?

Explanation:

Answer:

Leslie is a forensic scientist who is using the precipitin test at a crime scene. What question is Leslie MOST likely trying to answer?

Explanation:

Leslie is a forensic scientist who is using the precipitin test at a crime scene. What question is Leslie MOST likely trying to answer? got the answer from quilt

The balanced equation becomes: 2Ca + 2H2O -> 2Ca(OH)2 + 2Al(NO3)3 + H2SO4 -> Al2(SO4)3 + HNO3
Now, the equation is balanced with equal numbers of atoms on both sides.

The given equation is: Ca + H2O -> Ca(OH)2 + Al(NO3)3 + H2SO4 -> Al2(SO4)3 + HNO3

To balance the equation, we need to ensure that the number of atoms on both sides of the equation is equal.

First, let's balance the calcium (Ca) atoms. There is one Ca atom on the left side and two Ca atoms on the right side. To balance this, we need to put a coefficient of 2 in front of Ca on the left side.

The balanced equation becomes: 2Ca + H2O -> Ca(OH)2 + Al(NO3)3 + H2SO4 -> Al2(SO4)3 + HNO3

Next, let's balance the hydrogen (H) atoms. There are two H atoms in H2O and two H atoms in H2SO4 on the left side. On the right side, there are four H atoms in Ca(OH)2 and three H atoms in HNO3. To balance this, we need to put a coefficient of 2 in front of H2O on the left side.

The balanced equation becomes: 2Ca + 2H2O -> Ca(OH)2 + Al(NO3)3 + H2SO4 -> Al2(SO4)3 + HNO3

Now, let's balance the oxygen (O) atoms. There are four O atoms in Ca(OH)2 on the right side. To balance this, we need to put a coefficient of 2 in front of Ca(OH)2 on the right side.

The balanced equation becomes: 2Ca + 2H2O -> 2Ca(OH)2 + Al(NO3)3 + H2SO4 -> Al2(SO4)3 + HNO3

Finally, let's balance the aluminum (Al) atoms. There is one Al atom on the right side. To balance this, we need to put a coefficient of 2 in front of Al(NO3)3.

Learn more about balanced equation here :-

https://brainly.com/question/31242898

#SPJ11

Answer:

B. 4.0

Explanation:

the energy of a photon that is emitted as a hydrogen atom makes a transition between the n is 13.6(n^2 - 1)/n^2 eV

From the hydrogen atom's first excited state to its ground state, an electron transitions.

the given part is

   n1 = 1  and   n2 = n

The energy of photon released,

E=13.6(1/n1^2 – 1/n2^2) eV

= 13.6(1/1^2 – 1/n^2) eV

= 13.6(n^2 - 1)/n^2 eV

The following hypotheses form the foundation of Bohr's model:

• He hypothesized that an atom's electron can move within a specified stable, circular orbits around the nucleus without producing radiation.

• Bohr discovered that the electron's angular momentum is quantized in size.

To know more about the hydrogen atom's first excited state, click the below link

https://brainly.com/question/14285302?referrer=searchResults

#SPJ4

Answer:

0.46 J/g degrees C, Iron

Explanation:

16.1 J = 5 g x c x 7 degrees C

c = 16.1 / 5 x 7 = 0.46

Answer: 0.46 J/g degrees C, Iron

Curium (Cm) and Rhenium are the two elements with female names (Re).

After Marie Curie, a pioneering researcher in the realm of radioactivity, the element curium, with atomic number 96, was named. She was the first person to receive two Nobel Prizes, one each in physics and chemistry, and her work on the discovery of radium and polonium contributed to the advancement of X-ray technology and the development of cancer therapies.

Rhenium, an element with the atomic number 75, was given its name in honour of Ida Tacke-Rhenium, a German scientist who made the discovery of the substance alongside her husband in 1925. The element was found and isolated by her, and it has since been widely employed in high-temperature alloys, catalysts, and electronic parts.

Both of these women made significant contributions to science, and the naming of these elements pays tribute to them. They were pioneers in a male-dominated industry, and their contributions have had a lasting influence on science and technology.

To know more about elements, visit:

brainly.com/question/13025901

#SPJ1

It's actually true hope it helps.

Answer: 824.6 g of NaCl are produced from 500.0 g of chlorine.

Explanation:

To calculate the moles :

\(\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}\)  \(\text{Moles of} Cl_2=\frac{500.00g}{71g/mol}=7.04moles\)

\(2Na+Cl_2\rightarrow 2NaCl\)  

According to stoichiometry :

1 mole of \(Cl_2\) produce = 2 moles of \(NaCl\)

Thus 7.04 moles of \(Cl_2\) will produce=\(\frac{2}{1}\times 7.04=14.08moles\)  of \(NaCl\)

Mass of \(NaCl=moles\times {\text {Molar mass}}=14.08moles\times 58.5g/mol=824.26g\)

Thus 824.6 g of NaCl are produced from 500.0 g of chlorine.