Question

How many grams (mass) are in 1.7 moles of Nickel II oxide NiO?

Answer 1

Answer: mass m = n M = 1.7 mol × 74.69 g/mol

Step-by-step explanation:

Molar mass M(NiO) = (58.69+16) g/mol

Answer 2

126.99g

Step-by-step explanation:

NiO has a molar mass of 74.7 g/mol. This means that one mole of nickel (II) oxide has a mass of 74.7 grams. We can use stoichiometry/dimensional analysis to figure out how many grams are in 1.7 moles.

`1.7mol NiO ((74.7grams)/(1 mole) ) = 126.99g`