Answer to Question #264577 in General Chemistry for zach

Question

Tungsten carbide (WC), used in making tools and jewelry, is produced by the

the reaction of tungsten hexachloride (WCl 6 ), H 2, and CH 4 at 670℃.

WCl 6 + H 2 + CH 4 → WC + 6 HCl

If 23.5 g WCl 6 reacts with excess H 2 and CH 4, and 10.8 g WC is recovered,

what is the percent yield?

Answer 1

At 670 °C (1,238 °F), tungsten hexachloride is reacted with hydrogen (as a reducing agent) and methane (as a carbon source).

% yield= (10.8/23.5)× 100 = 45.96%