Questions


September 2022 1 1 Report
LEARNING TASK 1: WRITTEN WORKS NO.4
A.) MULTIPLE CHOICE
Directions: Read and understand each statement carefully. Choose the letter of the correct answer. Write your answer on the blank before a number.

_____1.) The following statements below describe the mole EXCEPT_______.

a.) The mole is a fundamental unit of measurement of substances.

b.) The mole is the number equal to the number of carbon atoms in 12.01 grams of carbon.

c.) The mole is the atomic or formula mass of a substance expressed in grams.

d.) The mole is consisting of chains of amino acids called peptides.

_____2.) This number is called AVOCADO'S number.

a.) 6.022 × 10²³

b.) 6.022 × 10²²

c.) 6.022 × 10²⁰

d.) 6.022 × 10²⁴

_____3.) Convert 0.371 mol Al to number of atoms.

a.) 2.23 ×10²³ Al Atoms

b.) 4.46 × 10²³ Al Atoms

c.) 2.23 × 10²² Al Atoms

d.) 4.46 × 10²² Al Atoms

_____4.) Calculate the molar mass of methane, CH⁴.

a.) 16.04 kg/mol

b.) 32.08 kg/mol

c.) 32.08 g/mol

d.) 16.04 g/mol

_____5.) Below are the steps in calculating moles, which one is the correct chronological order of solving for moles.

1.) Find the number of particles

2.) Find the atomic mass of each element

3.) Find the molar mass

4.) Find the number of moles

a.) 4, 3, 2, 1

b.) 2, 3, 1, 2

c.) 1, 2, 3, 4

d.) 2, 3, 4, 1​

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