Stoichiometry
In the reaction below, how many moles of hydrogen will be produced when reacting with 0.0204 moles of sodium?
2Na + 2H2O -> 2NaOH + H2
0.0102 mol H2
45.0 L of O2 gas at a pressure of 1.0 atm is compressed to a final pressure of 3.0 atm at constant temperature. What is the final volume?
15 L
Convert 60.1 g of C2H4O2 into moles
1 mol
How many sig figs are in 236.32?
5 sig figs
Express the following in scientific notation: 0.00125
1.25 x 10^-3
If you start with 10 g of Lithium Hydroxide, how many grams of Lithium Bromide will be produced?
LiOH + HBr -> LiBr + H2O
36.25 g LiBr
A balloon filled with 0.025 L of gas at 24 oC is heated to 49 oC at constant pressure. What is the final volume of gas inside the balloon in mL?
27 mL
0.5 moles of sodium chloride is dissolved to make 0.05 liters of solution
10 M
How many sig figs are in 0.00340
3 sig figs
Express the following in scientific notation: 2,000,000,000
2 x 10^9
How many grams of hydrogen are needed to react completely with 50 g of Nitrogen?
N2 + H2 -> NH3
10.7 g H2
A gas at 275 K and 1.0200 atm is decreased to 0.0251 atm at constant volume. What is the final pressure?
6.77 atm
Calculate molarity by dissolving 25.0g NaOH in 325 mL of solution.
1.92 mol/L
How many sig figs are in 320001
6 sig figs
Express the following in scientific notation: 27 x 10^3
2.7 x 10^4
Using the equation, find the number of moles of Al used to produce 9.9 moles of H2
Al + HCl -> AlCl3 + H2
6.6 moles Al
If I have a 50. L container that holds 45 moles of gas at a temperature of 200.0 C, what is the pressure inside the container?
35 atm
Calculate molarity by dissolving 25.0g NaOH in 325 mL of solution?
0.85 M
Calculate 23.7 x 3.8 to the correct number of sig figs.
9.0
Express the following in scientific notation: 0.00179
1.79 x 10^-3
If you reacted 1.09 x 10-3 g of S8 , how many grams of P(C6H5 )3S would be produced?
S8 + P(C6H5)3 -> P(C6H5)3S
1.00 x 10-2 g P(C6H5)S
A fixed amount of gas fills a space at 2.9 x 102 K and 7.9 x 102 torr. After heating the gas to 3.4 x 102 K and increasing the pressuring to 920 torr, the gas fills
8.97 L of space. What is the original volume?
8.9 L
Calculate molarity by dissolving 25.0g NaOH in 325 mL of solution.
31.3 M
Calculate to the correct number of sig figs: 28.367 / 3.74
7.58
Express the following in scientific notation: 367 x 10^-3
3.67 x 10^-1