IG Chemistry-5 Chemical calculation (5.1)

IG Chemistry-5 Chemical calculation (5.1)

9th - 12th Grade

12 Qs

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IG Chemistry-5 Chemical calculation (5.1)

IG Chemistry-5 Chemical calculation (5.1)

Assessment

Quiz

Chemistry

9th - 12th Grade

Medium

NGSS
HS-PS1-7

Standards-aligned

Created by

Jocelyn Zhang

Used 4+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the definition of a mole in chemistry?

A mole is a type of chemical reaction in which two substances combine to form a new substance.

A mole is a unit of measurement in chemistry that represents the amount of a substance.

A mole is a unit of measurement in chemistry that represents the volume of a substance.

A mole is a small, furry animal commonly found in gardens.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate the number of moles in 36 grams of water (H2O).

2

5.0

2.5

0.5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the total number of atoms in 1.0 mole of CO2?
1.5 x 1023
12 x 1023
3 x 1023
18 x 1023

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the molecular formula if the empirical formula is C2H5 and the molecular molar mass is 58 g/mol?

C2H5
C4H10
C1H2.5
C4H8

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements. (keep two decimal places throughout calculations)
SO
SO2
SO3
SO4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many grams is 1.2 moles of Ne?

0.05 grams
16.6 grams
21.2 grams
24 grams

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The molar mass of an element is equal to its...
Atomic mass
Atomic number
Oxidation number
Valence electrons

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