Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as making paper.

What is the mass of 2.20 * 1022 molecules of NaOH (Molar mass = 40.0 g/mol) ?

Express the mass in grams to three significant figures.

Question

Chemistry

Dillon Palmer

9 January, 10:49

Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as making paper.

What is the mass of 2.20 * 1022 molecules of NaOH (Molar mass = 40.0 g/mol) ?

Express the mass in grams to three significant figures.

+3

Answers (1)

Know the Answer?

Regina Murphy · Answer 1

No' of molecules divide by avogadro number, 6*6.023*10^23 so (2.2*10^22) : (6.023*10^23)

= 0.03653 moles

moles * Molar mass = mass

n*Mr=m

0.03653*40 = 1.46 grams

Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as making paper.What is the mass of 2.20 * 1022 molecules of NaOH (Molar mass = 40.0 g/mol) ?Express the mass in grams to three significant figures.

Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as making paper.

What is the mass of 2.20 * 1022 molecules of NaOH (Molar mass = 40.0 g/mol) ?

Express the mass in grams to three significant figures.