stoichiometry
nomenclature
equations
100

 How many moles of Na2S2O3 are needed to react completely with 42.7 g of AgBr? 

Na2S2O3 + AgBr --> NaBr + Na3[Ag(S2O3)2]

0.455 mol Na2S2O3

100

tin (II) hypochlorite

Sn(ClO)2

100

Aluminum bromide and chlorine gas react to form aluminum chloride and bromine gas.

2 AlBr3 + 3 Cl2 ---> 2 AlCl3 + 3 Br2

200

B2H6 + O2 --> HBO2 + H2O 

What mass of O2 will be needed to burn 36.1 g of B2H6? 125 g O2

125 g O2

200


trisilicon tetranitride  

Si3N4

200

C6H6 combusts in air.

2 C6H6 + 15 O2 --> 12 CO2 + 6 H2O

300

One mole of aspartame (C14H18N2O5) reacts with two moles of water to produce one mole of aspartic acid (C4H7NO4), one mole of methanol (CH3OH) and one mole of phenylalanine.

What is the molecular formula of phenylalanine?  

C9H11NO2

300


ammonium nitrate

NH4NO3

300

4 K + 2 MgBr --> 4 KBr + 3 Mg

is this balanced correctly? 

1 K + 1 MgBr --> 1 KBr + 1 Mg

no 

400

B2H6 + O2 --> HBO2 + H2O

How many moles of water are produced from 19.2 g of B2H6?
 

1.39 mol H2O

400


Sn(C2H3O2)2

Tin (II) Acetate

400

2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O

2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O

500

One mole of aspartame (C14H18N2O5) reacts with two moles of water to produce one mole of aspartic acid (C4H7NO4), one mole of methanol (CH3OH) and one mole of phenylalanine. 

what mass of phenylalanine is produced from 378 g of aspartame?  

212 g phenylalanine

500


HClO3

Chloric acid

500

Copper and sulfuric acid react to form copper (II) sulfate and water and sulfur dioxide.

Cu + 2 H2SO4 --> CuSO4 + 2 H2O + SO2