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

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

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

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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…

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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…

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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.

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Q: What is the mass in grams per mole?

A: Information about the question

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

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Q: y MOLECULES of molocules

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Q: 51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant…

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

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Q: 27. Select the correctly paired empirical and molecular formulas Empirical CH Molecular C,H2 C,H2…

A: The correctly paired empirical and molecular formula is given below.

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.