How many moles of copper are present in 75.92 g?

Answer 1

The Atomic Mass of Copper is 63.5 grams One mole of any element has a mass equal to the atomic mass.

0.75 grams of Cu = x moles of Cu

63.5 grams of Cu = 1 mole of Cu

Set up a proportion and solve for x

Divide

0.75 / 63.5 = x /1

0.75 ÷ 63.5 = x

Answer 2

Number of moles = (# of grams) ÷ (molar mass)

15.45 g Cu / 63.546 g = 0.24313 mol

Read more: How_do_you_convert_from_grams_to_moles_and_also_from_moles_to_grams

Answer 3

For this you need the atomic mass of Cu. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.

180 grams Cu / (63.5 grams) = 2.83 moles Cu

Answer 4

3 moles Cu (63.55 grams Cu/1mole Cu)

= 190.65 grams

Answer 5

If you work out the relative formula mass, which is one mole, then you find 0.75 of that answer.

Answer 6

150 grams copper (1 mole Cu/63.55 grams)(6.022 X 10^23/1 mole Cu)(1 mole Cu/6.022 X 10^23)

= 2.36 moles of copper atoms

Answer 7

1 mole Cu = 63.546g

75.92g Cu x 1mol Cu/63.546g Cu = 1.195 moles Cu

Answer 8

Considering the molar mass of water is 18 g, there are 100 moles in 1800 grams of water.