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For [tex] \text{Ca(NO}_3)_2 [/tex], determine:

A. Molar mass

B. Moles in 5 grams

C. Molecular mass

D. Number of atoms



Answer :

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Final answer:

The detailed answer provides information on calculating molar mass, moles, molecular mass, and number of atoms in Ca(NO3)2.


Explanation:

Molar mass of Ca(NO3)2: Ca: 40.08 g/mol, N: 14.01 g/mol, O: 16.00 g/mol
Total molar mass = 40.08 + 2(14.01 + 316.00) g/mol = 164.08 g/mol

Number of moles in 5 grams:
Moles = Mass / Molar mass. For Ca(NO3)2, Moles = 5 g / 164.08 g/mol = 0.0304 moles

Molecular mass of Ca(NO3)2: Sum of atomic masses = 40.08 + 2(14.01 + 316.00) g/mol = 164.08 g/mol

Number of atoms in Ca(NO3)2: Ca: 1 atom, N: 2 atoms, O: 6 atoms


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