   Chapter 2, Problem 136GQ

Chapter
Section
Textbook Problem

In the laboratory you combine 0.125 g of nickel with CO and isolate 0.364 g of Ni(CO)x. What is the value of x?

Interpretation Introduction

Interpretation: The value of x in the given compound Ni(CO)x has to be determined.

Concept introduction:

Moles: One mole is equivalent to the mass of the substance consists same number of units equal to the atoms present in 12g of 12C.

From given mass of substance moles could be calculated by using the following formula,

Molesofsubstance GivenmassofsubstanceMolecularmass

Explanation

Given,

0.125g Of nickel reacts with CO producing 0.364gofNi(CO)x

The number of moles of Ni can be calculated from its given mass as follows,

Number of moles of Ni =0.12558.70g/mol =0.00123mol

The amount of CO present in the reaction = AmountofproductAmountofNi

Thus,

The amount of CO present in the reaction = 0.364g-0.125g=0.239g

Number of moles of  CO =0

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