Question

if 0.5 moles of nacl are present, how many grams does it weigh? (molar mass of nacl is approximately 58.44 g/mol) a 29.44 grams b 58.44 grams c 29.22 grams d 50 grams e 0.5 grams

Explanation:

Step1: Recall mass - mole relationship formula

The formula is $m = n\times M$, where $m$ is mass, $n$ is the number of moles and $M$ is the molar mass.

Step2: Substitute given values

Given $n = 0.5$ moles and $M=58.44$ g/mol. So $m=0.5\times58.44$ g.

Step3: Calculate the mass

$m = 29.22$ g

Answer:

C. 29.22 grams