Grade 11 Chemistry Diagnostic Test

mole...

• Mass/ Mr

• Mass x Mr

• Mr/mass

• mass x Volume

Avogadro number...

Molarity is....

• mole/Mr

• mass/volume

• mole/Mass

• mole/Volume

Mass ...

• Mole/ Volume

• mole x Mr

• Mr/mole

• volume x mole

volume at STP ....

• mole x 22.4 liter

• mole x 24 liter

• mole/ 22.4 liter

• mole/ 24 liter

The formula for sodium chloride is...

• NaCl

• Na2Cl

• NaCl2

• Na2Cl2

the chemical formula for potassium oxide is ...

• PO

• PO2

• KO

• K2O

Aluminium Bromide is symbolized by....

• AlO

• Al2O

• Al2O3

• AlO3

a NaOH + b H2SO4 --> c Na2SO4 + d H2O. The correct numbers to make the equation balance is ....

• 1, 1, 2, 2

• 1, 2, 1, 2

• 2, 1, 1, 2

• 2, 2, 1, 1

2 grams of NaOH is .... moles, (Mr NaOH = 40 gr/mole).

• 0.5 moles

• 0.05 moles

• 8 moles

• 80 moles