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Chapter 7: Q. 7.34 (page 226)

Chloroform, ${CHCl}_{3}$ , 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" $0.122$ mole of chloroform?
b. How many moles are in localid="1653462926558" $26.7$ g of chloroform?

Short Answer

Expert verified

(a) There are $14.6$ gin $0.122$ moleof chloroform

(b) There are $4.5$ molein $26.7$ gof chloroform

Step by step solution

01

Part (a) Step 1: Given information

We need to find the mass in $0.122$ moleof chloroform

02

Part (a) Step 2: Simplify

We know that

A mole is equal to molar mass

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

Therefore, the mass in $0.122$ mole of chloroform is,localid="1653482386673" $119.5 \frac{g}{mol} 脳 0.122 mol = 14.6 g$

03

Part (b) Step 1: Given information

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

04

Part (b) Step 2: Simplify

We know that

A mole is equal to molar mass

And molar mass chloroform is, $119.5 g / mol$

Therefore, the no. of moles in $26.7$ gof chloroform is, $\frac{119.5 \frac{g}{mol}}{26.7 g} = 4.5 mole$

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Most popular questions from this chapter

Calculate the molar mass for each of the following:

a. ${CaSO}_{4}$ , calcium sulfate, used to make casts to protect broken bones

b. $C_{6} H_{12} N_{2} O_{4} Pt$ , Carboplatin, used in chemotherapy

c. $C_{12} H_{18} O$ , Propofol, used to induce anesthesia during surgery

Iron(III) oxide reacts with carbon to give iron and carbon monoxide.

$F e_{2} O_{3} (s) + 3 C (s) 鈫� 2 F e (s) + 3 C O (g)$

a. How many grams of $C$ are required to react with localid="1653488683706" $16.5 g$ of $F e_{2} O_{3} ?$

b. How many grams of $C O$ are produced whenlocalid="1653488713236" $36.0 g$ of $C$ reacts ?

c. How many grams of Fe can be produced when localid="1653488730008" $6.00 g$ of $F e_{2} O_{3}$ reacts?

Consider the following unbalanced equation: ( $7.4, 7.5, 7.7, 7.8$ )

$Al (s) + O_{2} (g) 鈫� {Al}_{2} O_{3} (s)$

a. Write the balanced chemical equation.

b. Identify the type of reaction.

c. How many moles of $O_{2}$ are needed to react with localid="1653475915594" $4.50$ mole of $Al$ ?

d. How many grams of ${Al}_{2} O_{3}$ are produced when localid="1653475936440" $50.2$ gof $Al$ reacts?

e. When $Al$ is reacted with localid="1653475950535" $8.00$ gof $O_{2}$ , how many grams of $A l_{2} O_{3}$ can form?

Calcium cyanamide, $C a C N_{2}$ reacts with water to form calcium carbonate and ammonia.

$C a C N_{2} (s) + 3 H_{2} O (l) 鈫� C a C O_{3} (s) + 2 N H_{3} (g)$

a. How many grams of $H_{2} O$ are needed to react with localid="1653494390919" $75.0 g$ of $C a C N_{2} ?$

b. How many grams of $N H_{3}$ are produced from localid="1653494416163" $5.24 g$ of $C a C N_{2} ?$

c. How many grams of $C a C O_{3}$ form iflocalid="1653494442688" $155 g$ of $H_{2} O$ reacts?

Write all of the mole-mole factors for each of the following chemical equations:

a. $2 S O_{2} (g) + O_{2} (g) 鈫� 2 S O_{3} (g)$

b.data-custom-editor="chemistry" $4 P (s) + 5 O_{2} (g) 鈫� 2 P_{2} O_{5} (s)$

See all solutions

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