a. Calculate the number of moles in 21.7 mg of nitrogen dioxide. mol b. Calculate the number of moles in 1.70 g of copper(II) nitrate. mol c. Calculate the number of moles in 2.46 g of carbon disulfide. mol

Q: Calculate the number of moles

A: Number of moles = mass/molar mass  Molar mass of NO = 30.01 g/mol  Molar mass of CCl4 = 153.82 g/mol

Q: a. How many moles of phosphorus trichloride are present in 7.95 × 1022 molecules of this compound?…

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Q: What is the mass of 3.1 moles of each of the following substances. a. Rb b. COCl2 c. Fe2(SO4)3

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Q: How many molecules are in 2.33 moles of Dinitrogen Trioxide? A. 1.71 x 1023 molecules Dinitrogen…

A: Given  Number of mole of N2O3 = 2.33 mole  Number of molecule = ?

Q: A.How many grams of chromium(III) oxide, , are present in 2.46 moles of this compound? grams_____…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: 1. identify 4 different chemical compounds. A.) calculate the mole mass of each chemical compound.…

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Q: a. How many carbon atoms are in the sam b. How many hydrogen atoms are in the s c. How many oxygen…

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Q: An antifungal molecule has a molar mass of 2448 g/mol.  a. How many moles are there in a 1.567g…

A: The given weight of sample is 1.567 g. The given molar mass is 2448 g/mol.

Q: 1. How many moles are present in 24.0 grams of Sb,S,? a. 1.31x10 mol b. 1.56x10 mol c. 5.94x10 mol…

A: (1) Number of moles of Sb2S5 can be determined by using the formula given below as: Moles of…

Q: Aspartame is an artificial sweetener that is160 times sweeter than sucrose(table sugar) when…

A: The answer to the following question can be given as -

Q: Molar Mass and Moles 5. Calculate the molar mass of Fe3(PO4)2. 6. How many moles of silicon are in…

A: Moles = Mass/molar mass Mass = moles x molar mass Molar mass of a compound is equal to the sum of…

Q: 3. It is found a certain sample of a compound contains 23.0g of sodium and 35.5g of chlorine. a.…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: What is the empirical formula for the substance in the figure?   A. S2O6 B. S3O C. SO3 D. SO

A: Given ,  %S= 40.05 % Therefore, %O = 100-40.05 =59.95 %

Q: Convert 32 grams of C₂H₅OH to moles.

A: The given mass of C2H5OH is 32 g. The molar mass of C, H, and O is 12.011 g/mol, 1.008 g/mol, and…

Q: Determine the mass in grams of Li+ (6.941 g/mol) in 25.0 g of Li2SO4 (109.94 g/mol).

A: Given: Mass of Li2SO4 = 25.0 g.

Q: What is the mass in grams per mole?

A: Information about the question

Q: 9. Determine the percent composition of each of the following compounds.a. Aluminum sulfateb. Sodium…

A: The percentage composition of a given compound is the ratio of the amount of each element to the…

Q: a. How many moles of sulfur hexafluoride, SF6, are present in a sample that contains 6.06 moles of…

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Q: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: A karat is a measure of gold purity. By definition, 24-karat gold is pure gold. However, gold is…

A: 5) Given: Mass of ring = 6 g. And mass percent of gold in ring = 90 %.

Q: Calculate the number of atoms of silver that are in 0.212 moles of silver. (Avogadro's number = 6.02…

A: Avogadro’s number, one mole of any substance (defined as its molecular weight in grams), is equal to…

Q: Which of the following is not true for 1 mole of the compound (CH3)2O?          a.     It contains…

A: 1 mole of a molecular/atomic substance is that amount of the substance which has 6.022×1023…

Q: How do you convert the following number of atoms to moles and moles to atoms as needed to get a, b,…

A: we know  that  n=no of molecules or atoms/NA NA = 6.023 ×10 23

Q: 1. A chemist has a 60g sample of element X and incrementally adds element Y, known to react with…

A: From the given information,The corresponding equation will be:X   +  Y  →   XY Mass of X = 60g Mass…

Q: Avogadro’s number is defined as   the number of atoms in exactly 12 g of carbon-12. the number of…

A: Which one of the following is correct

Q: 2. Consider the compound potassium hypochlorite. a. Write out the formula for potassium…

A: 2. We have to answer the following questions Write the formula of the potassium hypochlorite.…

Q: y MOLECULES of molocules

A:

Q: . Calculate the following: a. Calculate the number of moles in a 56g sample of sulfur trioxide…

A: A) Calculate the number of moles in a 56g sample of sulfur trioxide (SO3).  Molar mass of sulfur…

Q: 1. Define Avogadro's number? explain w/ applications 2. What is a mole? 3. How are Avogadro's…

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Q: a. Write the formula and calculate the molar mass for iron(II) chloride. Formula: Molar mass = g b.…

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Q: 2. Calculate the mass in grams of each of the following samples. a. 25.5 x 1024 nitrogen molecules…

A: Since you have asked for question 2 only, we are providing you a solution for that

Q: How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?   A. 0.140 moles…

A: Only 1st question is answered according to the policy

Q: Convert 32 grams of C2H,OH to moles.

A: Ethanol is an organic chemical compound. Its chemical formula C₂H₆O. It is used as a solvent.…

Q: 1. identify 4 different chemical compounds . A.) calculate the mole mass of each chemical compound…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.