James needs 4.20 moles of NaBr for an experiment. How many grams of NaBr must he measure out to have 4.20 moles? A. 24.5 B. 103 C. 183 D. 432

Question

asked Feb 6, 2019 141k views

2 Answers

Vlad Mihalcea · Answer 1 · 2019-02-11T13:20:52+0000

So,

Our conceptual plan is as follows:

mol NaBr --> g NaBr

Use the molar mass of NaBr to convert from mol NaBr to g NaBr.

$4.20mol\ NaBr\ *(102.89g)/(mol) \\ \\ =432g\ NaBr$

Hope this helps!