Question

Answer all parts of the following questions on Particle Stoichiometry.

Lithium metal reacts with copper (II) nitrate.

1. Translate, predict the products, and balance the equation above.

2. How many particles of lithium are needed to produce 125 g of copper?

3. How many grams of lithium nitrate are produced from 4.83E24 particles of copper (II) nitrate?

Answer 1

1. Translate, predict the products, and balance the equation above.

Li + Cu(NO3)2 = Li(NO3)2 + Cu

2. How many particles of lithium are needed to produce 125 g of copper?

125 g Cu ( 1 mol / 63.55 g ) (1 mol Li / 1 mol Cu ) ( 6.022 x 10^23 particles / 1 mol ) = 1.18x10^24 Li particles

3. How many grams of lithium nitrate are produced from 4.83E24 particles of copper (II) nitrate?

4.83E24 particles of copper (II) nitrate ( 1 mol / 6.022x10^23 particles ) (1 mol Li(NO3)2 / 1 mol Cu(NO3)2 ) ( 130.95 g / 1 mol ) = 1043.77 grams Li(NO3)2