Question

Mineral wolframite is the main source of the metal tungsten.
One of its components has formula MnWO4. What percent of this component is tungsten by mass?

Answer 1

The molar mass of wolframite is

$54.938 +183.85+4\times15.999=302.78g/mol$ $\%W=\frac{183.85}{302.78}\times100\%=60.72\%$

Answer: 60.72%