Exam 1 Chem 1120 midterm review lab
op.1
an experiment calls for 7.57g of sugar. you have a sugar son that is 5% by weight (for every 100g there is
5g of sugar). How many mL of the sugar sold will be needed to deliver 7.57 g of sugar. The density of
sugar is 1.157 g/mL. The molecular weight of sugar is 342 g/mol - CORRECT ANSWER ✔✔✔ 7.57g
sugar/0.05 g
1 mL/1.157 g
=130.8556 g/mL
=1.31x10^2 g/mL
HNO3 - CORRECT ANSWER ✔✔✔ nitric acid
Na2SO4 - CORRECT ANSWER ✔✔✔ sodium sulfate
FeCl3 - CORRECT ANSWER ✔✔✔ Iron (III) Chloride
SO3 - CORRECT ANSWER ✔✔✔ sulfur trioxide
magnesium carbonate - CORRECT ANSWER ✔✔✔ MgCO3
sulfuric acid - CORRECT ANSWER ✔✔✔ H2SO4
copper (II) hydroxide - CORRECT ANSWER ✔✔✔ Cu(OH)2
dinitrogen monoxide - CORRECT ANSWER ✔✔✔ N2O
sodium acetate - CORRECT ANSWER ✔✔✔ NaC2H3O2
what is metal charge of Al(OH)3 - CORRECT ANSWER ✔✔✔ +3
what is metal charge of KCl - CORRECT ANSWER ✔✔✔ +1
what is metal charge of CrBr3 - CORRECT ANSWER ✔✔✔ +3
what is metal charge of BaSO4 - CORRECT ANSWER ✔✔✔ +2
be able to balance a reaction and write the ionic equation - CORRECT ANSWER ✔✔✔ make sure the
moles add up and then only use the ions that form the solid compound
what are contact hazards for enthalpy lab - CORRECT ANSWER ✔✔✔ HCl
NaOH
bleach (NaClO
how to find the theoretical enthalpy of a reaction - CORRECT ANSWER ✔✔✔ delta H rxn= deltaH of
products - delta H of reactants
how to calculate the mass of each solution - CORRECT ANSWER ✔✔✔ use density as conversion factor
op.1
an experiment calls for 7.57g of sugar. you have a sugar son that is 5% by weight (for every 100g there is
5g of sugar). How many mL of the sugar sold will be needed to deliver 7.57 g of sugar. The density of
sugar is 1.157 g/mL. The molecular weight of sugar is 342 g/mol - CORRECT ANSWER ✔✔✔ 7.57g
sugar/0.05 g
1 mL/1.157 g
=130.8556 g/mL
=1.31x10^2 g/mL
HNO3 - CORRECT ANSWER ✔✔✔ nitric acid
Na2SO4 - CORRECT ANSWER ✔✔✔ sodium sulfate
FeCl3 - CORRECT ANSWER ✔✔✔ Iron (III) Chloride
SO3 - CORRECT ANSWER ✔✔✔ sulfur trioxide
magnesium carbonate - CORRECT ANSWER ✔✔✔ MgCO3
sulfuric acid - CORRECT ANSWER ✔✔✔ H2SO4
copper (II) hydroxide - CORRECT ANSWER ✔✔✔ Cu(OH)2
dinitrogen monoxide - CORRECT ANSWER ✔✔✔ N2O
sodium acetate - CORRECT ANSWER ✔✔✔ NaC2H3O2
what is metal charge of Al(OH)3 - CORRECT ANSWER ✔✔✔ +3
what is metal charge of KCl - CORRECT ANSWER ✔✔✔ +1
what is metal charge of CrBr3 - CORRECT ANSWER ✔✔✔ +3
what is metal charge of BaSO4 - CORRECT ANSWER ✔✔✔ +2
be able to balance a reaction and write the ionic equation - CORRECT ANSWER ✔✔✔ make sure the
moles add up and then only use the ions that form the solid compound
what are contact hazards for enthalpy lab - CORRECT ANSWER ✔✔✔ HCl
NaOH
bleach (NaClO
how to find the theoretical enthalpy of a reaction - CORRECT ANSWER ✔✔✔ delta H rxn= deltaH of
products - delta H of reactants
how to calculate the mass of each solution - CORRECT ANSWER ✔✔✔ use density as conversion factor
