# chemistry

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

4 PH3 -> P4 + 6 H2

1. 👍 0
2. 👎 0
3. 👁 102
1. 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.

1. 👍 0
2. 👎 0
posted by MathMate

## Similar Questions

1. ### chemistry

What is the maximum number of grams of PH3 that can be formed when 6.2 grams of phosphorus reacts with 4.0 grams of hydrogen to form PH3? P4+6H2-->4PH3. how do i do this question

asked by Miley on June 10, 2008
2. ### CALCULUS

The masses of 10 books are found to be in an arithmetic sequence. If their total mass is 13 kg and the lightest book has a mass of 400 grams, what is the mass of the heaviest book? 2,000 grams 2,100 grams 2,200 grams 2,300 grams

asked by Chelsy on November 27, 2012
3. ### Chemistry

Assume that a reaction occurs in which unknown substances R and S react to form unknown substances T and U. From the information below, determine the mass of substance T that will be formed if 45.0 grams of substance R reacts with

asked by Daniel on May 20, 2008
4. ### Chemistry

If 20.0 grams of propane are burned with 50.0 grams of oxygen: What mass of CO₂ is produced? What mass of water is produced? What mass of which reactant was excess? Thank you so much.

asked by Mom on October 23, 2011
5. ### Chemistry

If 20.0 grams of propane are burned with 50.0 grams of oxygen: What mass of CO₂ is produced? What mass of water is produced? What mass of which reactant was excess? Thank you so much.

asked by Mom on October 23, 2011
6. ### Chemistry

If 20.0 grams of propane are burned with 50.0 grams of oxygen: What mass of CO₂ is produced? What mass of water is produced? What mass of which reactant was excess? Thank you so much.

asked by Mom on October 23, 2011
7. ### Chemistry

When 16 grams of methane gas combine with 64 grams of oxygen, 44 grams of carbon dioxide form, plus water. What mass of water is produced? You can work this problem as a stoichiometry problem OR you can recognize that the law of

asked by Bryan on October 1, 2006
8. ### Chemistry

When potassium cyanide reacts with acids a deadly poisonous gas hydrogen cyanide is produced calculate the mass in grams of hydrochloric acid molar mass 36.46 grams per mole needed to completely react with 0.140 grams of potassium

asked by Meg on November 12, 2019
9. ### Chemistry

The oxidation of phosphine (PH3) to phosphorus pentoxide (P2O5) is given by the chemical equation: _PH3+O2-->_P2O5+H2O A.balance the chemical equation B.how many grams of O2 will react completely with 35.0grams of PH3? C.how many

asked by Engelbert on October 13, 2017
10. ### chemistry

what is the maximum number of grams of PH3 that can be formed when 6.2grams of phosphorus reacts with 4.0 grams of hydrogen to form PH3? P4+6H2--> 4PH3

asked by afdsfd on June 9, 2008

More Similar Questions