a sample of sodium hydroxide (naoh) has a mass of 160.0 g. the molar mass of naoh is 40.00 g/mol. how many…

a sample of sodium hydroxide (naoh) has a mass of 160.0 g. the molar mass of naoh is 40.00 g/mol. how many moles of naoh does this sample contain?\n4.000 moles\n40.00 moles\n160.0 moles\n6,400 moles

a sample of sodium hydroxide (naoh) has a mass of 160.0 g. the molar mass of naoh is 40.00 g/mol. how many moles of naoh does this sample contain?\n4.000 moles\n40.00 moles\n160.0 moles\n6,400 moles

Answer

Explanation:

Step1: Recall the formula for calculating the number of moles

The formula for the number of moles (n) is (n=\frac{m}{M}), where (m) is the mass of the substance and (M) is the molar mass.

Step2: Substitute the given values into the formula

Given (m = 160.0\space g) and (M=40.00\space g/mol), then (n=\frac{160.0\space g}{40.00\space g/mol}) [n = 4.000\space mol]

Answer:

4.000 moles