This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining) : Ni (CO4)

A chemical engineer has determined by measurements that there are 9.6 moles of nickel in a sample of nickel tetracarbonyl. How many moles of carbon are in the sample?

9.6 moles

Explanation:

The compound; Ni (CO4)

The ratio of the elements is given as;

Ni : C : O

1 : 1 : 4

The ratio of Nickel is particularly;

Ni : C

1 : 1

If there are 9.6 moles of Nickel present in the sample, it means there are also 9.6 moles of Carbon in the sample.

Complete question:

This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining) : Ni (CO) 4 A chemical engineer has determined by measurements that there are 9.6 moles of nickel in a sample of nickel tetracarbonyl. How many moles of carbon are in the sample? Round your answer to 2 significant digits.

Answer:

number of moles of carbon in the compound = 9.6 * 4 = 38.40 moles ≈ 38 moles

Explanation:

The molecular formula of the compound, tetracarbonyl is represented as Ni (CO) 4. From the chemical formula of the actual compound contains 1 mole of nickel, 4 moles of carbon and 4 moles of oxygen.

The ratio of the moles can be represented as:

Ni C O

1 : 4 : 4

1 mole of Nickel containing mass of 58.6934 g.

4 moles of carbon containing mass of 4 (12 g) = 48 g

4 moles of oxygen containing mass of 4 (16 g) = 64 g

since 1 mole of nickel contains 4 moles of carbon in the compound

9.6 moles of nickel will contain? moles of carbon

cross multiply

number of moles of carbon in the compound = 9.6 * 4 = 38.40 moles

2 significant figure = 38 moles