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# Molar Mass Calculation: Sr(OH)2 N2O3 NaClO3 Cr2O3 Explained!

**Chapter 3, Problem 3.8**

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**QUESTION:**

Calculate the molar mass of each of the following:

(a) \(\mathrm{Sr}(\mathrm{OH})_{2}\)

(b) \(\mathrm{N}_{2} \mathrm{O}_{3}\)

(c) \(\mathrm{NaClO}_{3}\)

(d) \(\mathrm{Cr}_{2} \mathrm{O}_{3}\)

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##### Molar Mass Calculation: Sr(OH)2 N2O3 NaClO3 Cr2O3 Explained!

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In this chemistry tutorial learn how to calculate the molar mass of various compounds using atomic masses from the periodic table. Discover the molar mass for compounds such as Strontium Hydroxide Dinitrogen Trioxide Sodium Chlorate and Chromium(III) Oxide. A concise guide to understanding molar masses and their real-world applications.

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### Questions & Answers

**QUESTION:**

Calculate the molar mass of each of the following:

(a) \(\mathrm{Sr}(\mathrm{OH})_{2}\)

(b) \(\mathrm{N}_{2} \mathrm{O}_{3}\)

(c) \(\mathrm{NaClO}_{3}\)

(d) \(\mathrm{Cr}_{2} \mathrm{O}_{3}\)

**ANSWER:**

Step 1 of 4

(a) \(\mathrm{Sr}(\mathrm{OH})_{2}\)

Molar mass of Strontium (Sr) = 87.62 g/mol

Molar mass of oxygen (O) = 16.00 g/mol

Molar mass of hydrogen (H) = 1.008 g/mol

Let’s calculate: (1 x 87.62 g/mol) + (2 x 16.00 g/mol) + (2 x 1.01 g/mol)

Therefore, molar mass of \(\mathrm{Sr}(\mathrm{OH})_{2}\) is 121.64 g/mol.