Chemical Composition of C2H2

Chemical Composition of C2H2

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Jackson Turner

FREE Resource

The video tutorial explains how to determine the number of atoms in C2H2, also known as ethyne or acetylene. It begins by identifying the element symbols and subscripts for carbon and hydrogen, indicating two atoms each. The total number of atoms in C2H2 is calculated as four. The video further explores how to find the number of atoms in one mole of C2H2 using Avogadro's number, resulting in 12.04 x 10^23 atoms for both carbon and hydrogen. The tutorial concludes with a summary of the calculations and concepts discussed.

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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for ethyne, also known as acetylene?

CH4

C3H6

C2H2

C2H4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many carbon atoms are present in a molecule of C2H2?

Two

Three

One

Four

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of atoms in a single molecule of C2H2?

Five

Four

Three

Two

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are there in C2H2?

Three

Four

One

Two

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What constant is used to calculate the number of atoms in one mole of a substance?

Planck's constant

Euler's number

Boltzmann's constant

Avogadro's number

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many carbon atoms are there in one mole of C2H2?

12.04 x 10^23

24.08 x 10^23

3.01 x 10^23

6.02 x 10^23