How many grams does .501 moles of $C u B r_{2}$ $CuBr_2$ weigh?

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Answer 1 · 2016-03-08T18:47:33

$111.873 g$ $111.873g$

Since moles = mass/molar mass, $n = \frac{m}{M_{r}}$ $n=m/M_r$ , we get that

$m = n \times M_{r}$ $m=nxxM_r$

$= 0.501 \times (63.5 + 2 \times 79.9)$ $=0.501xx(63.5+2xx79.9)$

$= 111.873 g$ $=111.873g$

How many grams does .501 moles of CuBr2CuBr_2 weigh?