Calculate the moles of CuCu in 8.2×1021 atoms of CuCu.   Express your answer using two significant figures

Q: Determine the empirical and molecular formula of the following compounds: 1. Nicotine which is known…

A: The nicotine is formed by carbon, nitrogen, and hydrogen atoms. The number of nitrogen atoms in…

Q: Be sure to answer all parts. How many H atoms are in 31.3 g of isopropanol (rubbing alcohol), C3H3O?…

A:

Q: Calculate the mass, in grams, for each of the following:  A. 1.55 moles of KK Express your answer…

A:

Q: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. Calculate the mass (in g) of…

A: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. We have to calculate the mass (in…

Q: What is the mass (in grams) of 8.10 x 1023 molecules of C6H12O6 ? Remember to report proper number…

A: In multiplication and division we report final answer to least significant figures in available…

Q: 1. How many ATOMS of carbon are present in 6.03 grams of carbon tetrafluoride ? atoms of carbon . 2.…

A: Given, (1) The mass of carbon tetrafluoride = 6.03 grams. (2) Number of molecules of Carbon…

Q: What is the empirical formula of a compound found to contain 40.0 g N, 14.4 g H, and 45.7 g O?…

A: Given;

Q: A sample of a salt was found to contain 2.83 g of calcium and 2.68 g of fluorine. a) Calculate the…

A: Given: Mass of calcium, Ca = 2.83 g. And mass of fluorine, F = 2.68 g.

Q: Which of the following statements is not correct? A. 12.01 g of C contains 6.022 x 1023 atoms of C…

A: 1 mol of any substance contains Avogadro's number of particles (atom/ion/molecule etc.). Avogadro's…

Q: This is an impossible formula. Pretend it is real. If you had 1 mol of Mn9(ClO4)2 how many moles of…

A:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Empirical formula: The empirical formula of a chemical compound is the formula with smallest…

Q: How many atoms of chlorine are in 6.85 g of chlorine

A:

Q: One mole of oxygen gas has a mass of 6.022 x 1023 16.0 32.0 none of the above 8.

A: One mole of oxygen gas is equal to = O2 (two atoms of oxygen ) One oxygen atom = 16 g

Q: This is the chemical formula for carvone (the chemical that gives spearmint its flavor): C10H14O An…

A: Carvone has folloing molecular formula C10H14O So, 10 moles Carbon contains per mol of oxygen.

Q: 2. A compound composed of carbon and hydrogen with the formula CxHy was burned. The balanced…

A: • Since, in the given chemical equation we have to calculate the number of carbon and hydrogen in…

Q: What is the mass in grams of 4.57 × 10²⁵ molecules of Cl₂? I get the write and but the wrong number…

A: Mole concept: The number of molecules in one mole of chlorine is equal to the Avogadro number. The…

Q: determine the number of moles in 6.22 x 10^25 atoms of Cu

A: Number of moles in 6.22 x 10^25 atoms of Cu is determined as

Q: Calculate the mass in grams for each of the following. Express your answer to three significant…

A: Avogadro's defined 1 mol substance as the collection of 6.022 × 1023 number of particle or number of…

Q: How many moles of Cu(NO3)2 are in 3.4 x 1022 molecules? Please have your answer in decimal format…

A:

Q: Calculate the mass in grams to 3 sig figs of 8.65x1022 atoms of aluminum

A: Number of atoms of Aluminum = 8.65 * 1022  atoms (given) Molar mass of Aluminium = 26.981539 g…

Q: This is the chemical formula for cassiterite (tin ore): SnO2 A geochemist has determined by…

A: Given : The formula of cassiterite is SnO2. And the moles of tin i.e Sn in the cassiterite sample =…

Q: Be sure to answer all parts. How many H atoms are in 77.3 g of isopropanol (rubbing alcohol), C3H3O?…

A: We have to calculate  the number  of H atoms present  in 77.3 g of isopropanol alchol ( C3H8O)

Q: A certain organic compound has the formula C8H13O2. A sample of this compound weighs 5.89 grams.…

A: Mass of C8H13O2 = 5.89 g Molar mass of C8H13O2 = 141.184 g/mol Moles of C8H13O2 =MassMolar mass=5.89…

Q: On 12 and 13 I got a negative scientific on one and a positive on the other. Did I make a mistake…

A: General chemistry12. The number of atoms or molecules in a mole of any substance is equal to…

Q: 1 mole of 63Cu atoms has a mass of about 63 grams. Explain why the number below Cu on the periodic…

A:

Q: Calculate the mass of 3.011 x 10^23 atoms of calcium.  Report your answer to two decimal places

A: First find no. of moles by dividing by Avogadro no. ( NA) then find mass.

Q: How many grams are in 1.2 × 1024 atoms of carbon

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Using your answers from above calculate the number of grams of these elements. Hydrogen in 124 g of…

A:

Q: How many moles of nitrogen, N, are in 72.0 g of nitrous oxide, N2O? Express your answer with the…

A: moles of element = (given mass ÷ total mass) molecular of N2O is 44

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Answer:- This question is answered by using the simple concept of chemical formula analysis of the…

Q: What is the percent by mass of hydrogen in Ca(OH)2? Group of answer choices 2.72 % 1.36% 21.6 %…

A: % by mass basically tells about the concentration of one element present in the mixture. The formula…

Q: How many moles are in 9.26 x 1023 molecules of NH3 ? Do not put units in your answer. Do use proper…

A:

Q: 1: How many carbon atoms are present in a mole of ¹2C? 12 Express your answer using four significant…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: This number of particles is called Avogadro's number (NA) and has a value of... 6.02 x 10 – 23 0.602…

A:

Q: Calculate the number of carbon atoms in 1.75 g of table sugar, C12H22O11 Express your answer using…

A: mole = (given mass ÷ molecular mass) Molecular mass of sugar C12H22O11 = 342g

Q: Calculate the mass in grams of 1.8 x 1017 KCl molecules.

A:

Q: The chemical formula for propane is: CH;CH,CH3 Calculate the molar mass of propane. Round your…

A: Molar mass is the sum of atomic masses of each atom present in a molecule. Atomic mass of C= 12…

Q: Determine the mass in grams of 4.78 × 1021 atoms of chromium. (The mass of one mole of chromium is…

A: The number 6.023 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: How many fluorine atoms are present in 5.38 g of C2F4? Express your answer to three significant…

A: The value is given as follows:

Q: How many atoms are there in 77.9 g of selenium? You will need to divide your answer by 1.0X10^23

A:

Q: Be sure to answer all parts. How many H atoms are in 84.9 g of isopropanol (rubbing alcohol), C3H,0?…

A: We have to calculate the number of H atoms in 84.9 g of isopropanol.

Q: How many atoms are in 15.6 grams of silicon? group of answers 0.555 2.64 x 10^26 3.34 x 10^23 438…

A:

Q: How many molecules are there in 47.5 g of PF3? You will need to divide your answer by 1.0x10^23.

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass.…

Q: Calculate the number of moles in each sample. 74.9 g HCCl3 Express your answer with the…

A: Given samples,    74.9 g HCCl3    10.7 g C6H12O6    28.4 kg C2H4    22.6 g of dinitrogen monoxide

Q: 1.75 x 1023 atoms Pb converted to grams

A:

Q: Be sure to answer all parts. How many H atoms are in 40.1 g of isopropanol (rubbing alcohol), C3H§O?…

A: H - atoms in 40.1 g of isopropanol=?

Q: In doing the experiment, a student calculated the mass of chlorine in the compound to be 1.133 g.…

A: The number of moles (N) of a species is mathematically expressed as: N=MMM where M and MM represent…

Q: How many fluorine atoms are present in 5.56 g of C2F? Express your answer to three significant…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Show all steps in the answers for the following questions using significant figures in the…

A: " Since you have posted a question with multiple sub-parts , we will solve first three sub-parts for…

Q: 2.845 x 10E12 potassium ions equals how many moles of potassium ions?

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".