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Quiz-Stoich and OrgChem

Total questions: 10

Worksheet time: 23mins

Name
Class
Date
1.

It is the reactant that produces a lesser amount of product.

a)

Excess Reactant

b)

Percent Yield

c)

Limiting Reactant

d)

Co-Factor

2.

What is the calculation of the relationship of reactant and product in chemical equation.

a)

Molality

b)

Stoichiometry

c)

Balancing Equation

d)

Percent Yield

3.

They are the reactants that are not used up when the reaction is finished.

a)

Excess Reagents

b)

Solute

c)

Limiting Reagents

d)

Solution

4.

How many moles of chlorine gas can be produced if 4 moles of FeCl3 react with 4 moles of O2?


𝐹𝑒𝐶𝑙3 + 𝑂2 → 𝐹𝑒2𝑂3 + 𝐶𝑙2

a)

6 moles

b)

8 moles

c)

10 moles

d)

12 moles

5.

2C2H6 + 7O2 --> 4CO2 + 6H2O

If 15 g of C2H6 react with 45 g of O2, how many grams of water will be produced?

( C=12g/mol;O=16g/mol;H=1g/mol)

a)

22 grams H2O

b)

23 grams H2O

c)

27 grams H2O

d)

28 grams H2O

6.

2C2H6 + 7O2 --> 4CO2 + 6H2O

If 15 g of C2H6 react with 45 g of O2, what is the limiting reactant?

a)

O2

b)

C2H6

c)

H2O

d)

CO2

7.

2Al + 6HBr --> 2AlBr3 + 3H2

When 86.9 grams of Al reacts with 401 grams of HBr, how many H2 are formed?

a)

5.01 grams

b)

7.01 grams

c)

8.01 grams

d)

10.01 grams

8.

What functional group shows up in so many alcohol, it has come to be known as the alcohol

group?

a)

hydroxyl

b)

oxyhol

c)

carbonyl

d)

carboxyl

9.

How do you write the chemical formula of the ETHERS class?

a)

R-O-R'

b)

R-O-O-H

c)

O-R-O

d)

R-O-O-R'

10.

These are also called olefins and are forms of unsaturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Alkyls