Posted by **jamie** on Monday, December 6, 2010 at 10:50pm.

PH3 has a mass of 17.33 grams, what is the mass in grams of H2 produced?

4 PH3 -> P4 + 6 H2

- chemistry -
**MathMate**, Monday, December 6, 2010 at 11:08pm
Add up the numbers to get the molar mass of phosphine, PH3 = 33.998 g/mol

molar mass of hydrogen, H2 = 2.0159

4 mol of PH3 yields 6 mol H2

Mass of Hydrogen

= 17.33*(6*2.0159)/(4*33.998)

= 1.541 g

Check my calculations.

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