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Chapter 7: Q. 7.34 (page 226)

Chloroform, CHCl3, was formerly used as an anesthetic but its use was discontinued due to respiratory and cardiac failure.

a. How many grams are in localid="1653462913325" 0.122mole of chloroform?

b. How many moles are in localid="1653462926558" 26.7g of chloroform?

Short Answer

Expert verified

(a) There are14.6gin 0.122moleof chloroform

(b) There are 4.5molein26.7gof chloroform

Step by step solution

01

Part (a) Step 1: Given information 

We need to find the mass in0.122moleof chloroform

02

Part (a) Step 2: Simplify  

We know that

A mole is equal to molar mass

And molar mass of dinitrogen oxide is, 119.5g/mol

Therefore, the mass in 0.122mole of chloroform is,localid="1653482386673" 119.5gmol×0.122mol=14.6g

03

Part (b) Step 1: Given information   

We need to find the no. of moles in 26.7gof chloroform

04

Part (b) Step 2: Simplify  

We know that

A mole is equal to molar mass

And molar mass chloroform is,119.5g/mol

Therefore, the no. of moles in 26.7gof chloroform is,119.5gmol26.7g=4.5mole

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Most popular questions from this chapter

Classify each of the following as a combination, decomposition, single replacement, double replacement, or combustion reaction:

a. 2Al2O3s→∆4Als+3O2g

b. Br2l+BaI2s→BaBr2s+I2s

c. 2C2H2g+5O2g→∆4CO2g+2H2Og

d. BaCl2aq+K2CO3aq→BaCO3s+KClaq

e.Pbs+O2g→PbO2s

Calculate the mass, in grams, for each of the following:

a.1.50moles of Na

b. 2.80 moles of Ca

c.0.125 mole ofCO2

d. 0.0485mole of Na2CO3

e. 7.14x102moles of PCI3

Calcium cyanamide, CaCN2reacts with water to form calcium carbonate and ammonia.

CaCN2(s)+3H2O(l)→CaCO3(s)+2NH3(g)

a. How many grams of H2Oare needed to react with localid="1653494390919" 75.0gof CaCN2?

b. How many grams ofNH3are produced from localid="1653494416163" 5.24gof CaCN2?

c. How many grams of CaCO3form iflocalid="1653494442688" 155gof H2Oreacts?

a. The compound MgSO4, Epsom salts, is used to soothe sore feet and muscles. How many grams will you need to prepare a bath containing localid="1653460710134" 5.00mole of Epsom salts?

b. Potassium iodide, KI, is used as an expectorant. How many grams are inlocalid="1653460784056" 0.450moleof potassium iodide?

When ammonia (NH3) gas reacts with fluorine gas, the gaseous products are dinitrogen tetrafluoride (N2F4) and hydrogen fluoride (HF). (7.4,7.7,7.8)

a. Write the balanced chemical equation.

b. How many moles of each reactant are needed to produce localid="1653469855463" 4.00moleof HF?

c. How many grams of F2are needed to react with localid="1653469902894" 25.5gof NH3?

d. How many grams of N2F4can be produced when localid="1653469925977" 3.40gof NH3reacts?
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