Question

what is the mass in grams of 34.9 moles of nacl?

Explanation:

Step1: Find molar mass of NaCl

The molar mass of Na (sodium) is approximately 22.99 g/mol and Cl (chlorine) is approximately 35.45 g/mol. So molar - mass of NaCl, $M = 22.99+35.45=58.44$ g/mol.

Step2: Calculate mass of NaCl

We know that the number of moles $n = 34.9$ moles and the formula for mass $m=n\times M$. Substitute $n = 34.9$ moles and $M = 58.44$ g/mol into the formula: $m=34.9\times58.44$.
$m = 34.9\times58.44=2039.556$ g.

Answer:

2039.556