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Conversions

100

How many atoms are in a mole of Carbon?

6.022 x 10^-24 amu

200

Write a conversion relating to the number of moles to the number of molecules

6.022 x 10²³ molecules / 1 mole

300

How many molecules are there in 23 grams of FeF₃?

1.28 x 10²³ molecules

400

How many molecules are there in 450 grams of Na₂SO₄?

1.91 x 10²⁴ molecules

500

How many grams are there in 7.4 x 10²³ molecules of AgNO₃?

209 grams

Nomenclature

100

Name:

ZnBr₂

Zinc bromide

200

Give the chemical formula

Lithium chloride

LiCl

300

Name

CoBr₂

Cobalt (II) bromide

400

Give the formula

Chromium (III) chloride

CrCl₃

500

Give the formula

Vanadium (V) oxide

V₂O₅

Ions (charges and formulas)

100

The ion K⁺ has 

_____ protons and _____ electrons

19 protons and 18 electrons

200

The ion Br^- has 

_____ protons and _____ electrons

35 protons and 36 electrons

300

What two ions make up Tin (IV) chloride? 

List correct charges

Sn⁴⁺ and Cl^-

400

What two ions make up Aluminum carbonate?

list correct charges AND formula

Al³⁺ and CO₃^2-

Al₂(CO₃)₃

500

What two ions make up Iron (III) sulfate?

List correct charges AND formula

Fe³⁺ SO₄^2-

Fe₂(SO₄)₃

Molar Mass

100

Calculate the molar mass for H₂O

18.02 g/mol

200

Calculate the molar mass for PbSO₄

303.3 g/mol

300

Calculate the molar mass for Ca(OH)₂

74.12 g/mol

400

Calculate the molar mass for Fe₃(PO₄)₂

357.4 g/mol

500

Calculate the molar mass for Zn(C₂H₃O₂)₂

183.46 g/mol