MOLE EXERCISES #1 – (answers between parenthesis)
- Calculate the mass of 2 moles of Sodium atoms. (46g)
- calculate the mass of 3 moles of potassium atoms (117g)
- calculate hos many moles of phosphorous are in 310 g of the element. (10 mol)
- How many grams of aluminum are in 30 moles of the metal? (810g)
- How many kilograms are present in the mass calculated in #4? (0.810kg)
- which is the mass of 1 mole of chlorine gas? (71g)
- which is the mass of 0.2 moles of water? (3.6g)
- how many moles of sulfuric acid are present in 4.9 g of the substance? (0.05moles)
- If you calculate that 3 moles of an element x has a mass of 69g, how many grams are contained in one mole of the element? (23g)
- 0.5 moles of a metal has a mass of 20 g. which is the molar mass of the element? (40g) the element is calcium
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