# chemistry 105

posted by .

Lithium reacts with nitrogen gas according to the following reaction: 6Li(s)+N2(g)-->2LiN(s)
What mass of lithium (in g ) is required to react completely with 59.9 mL of N2 gas at STP?

• chemistry 105 -

Use the ideal gas law..
PV=nRT
and solve for moles of N2

SO....
(1.00atm)(.0599L)=n(0.0821L*atm/mol*K)(273K)
solve for n.

then use "n" moles of N2 and then set up an conversion factor.

so....
___moles of N2 x( 6mol Li/2mol N2) x (MolarMass Li/1mol of Li)

Then that gives you your mass of Lithium required to react.
Hope that helps!

• chemistry 105 -

.555 g

## Similar Questions

1. ### chemistry

What mass of lithium in grams is required to react completely with 57.9mL of N2 gas at STP?
2. ### chem

What mass of lithium (in g) is required to react completely with 59.1 mL of gas at STP?
3. ### Chemistry

Oxygen gas reacts with powdered aluminum according to the following reaction: 4Al(s)+3 O2(g) --> 2 Al2O3 (s) How many liters of O2 gas, measured at 789 mm Hg and 35 C, are required to completely react with 2.2 mol of Al?
4. ### Chemistry

When heated, lithium reacts with nitrogen to form lithium nitride: 6Li+N2 --> 2Li3N What is the theoretical yield of Li3N in grams when 12.4 g of Li is heated with 33.9g of N2
5. ### chemistry

Please help again. How many grams of lithium are required to completely react with 70.7 mL of N2 gas at STP when given the following reaction: 6Li + N2 = 2Li3N
6. ### college chemistry

Lithium metal decomposes in water and releases hydrogen gas. if 275 ml of hydrogen gas is produced at stp. what is the mass of lithium that reacted ?
7. ### Chem

What mass of lithium (in g) is required to react completely with 58.3 mL of N2 gas at STP?
8. ### Chemistry

What mass of lithium (in g) is required to react completely with 57.5mL of N2 gas at STP?
9. ### Chemistry

Identify the following chemical equations by type. 1. If an electric discharge produces 800 cm3 of ozone (O3), how many cm3 of oxygen (O2) are required?
10. ### Chemistry

How many grams of lithium are required to completely react with 61.9 mL of N2 gas at STP

More Similar Questions