Question

What is the mass in grams of 0.40 moles of sodium borohydride nabh4

Answer 1

The answer is 15.12 g but if you are taking this test on ck12 make sure you round it to 15 like it says on the directions :) good luck

Answer 2

15.12g

Step-by-step explanation:

Given parameters:

Number of moles = 0.4moles

Unknown:

Mass of the compound = ?

Solution:

To solve this problem;

Mass = number of moles x molar mass

Molar mass of NaBH₄ = 23 + 10.8 + 4(1) = 37.8g/mol

Mass of the compound = 0.4 x 37.8 = 15.12g