written lab final

percent yield (conservation of matter)

(starting mass - final mass) x 100%

steps in copper cycle reactions

1. oxidation of copper into copper ion 2. metathesis of copper ion into CuOH 3. dehydration of CuOH into CuO 4. decomposition of CuO into copper ion 4. reduction of copper ion to copper

unit for molar heat capacity

J/C

unit for specific heat capacity

J/kg°C

VESPR

Valence Shell Electron Pair Repulsion

extensive property

a property that depends on the amount of matter in a sample -heat capacity

What effect on the molar mass of the unknown metal would there be if some of the hydrogen gas generated by the experiment escaped into the room

decrease

intensive properties

do not depend on the amount of matter present -molar and specific heat capacity

determinate errors

errors in method or performance that can be discovered and eliminated

For the prior lab experiment (Gas Laws), you used the number of mols of your unknown metal for the variable "n" in the ideal gas law

false

The molecular geometry and electron geometry are never the same for a particular molecule

false

What are the units for the molar mass of a gas

g/mol

we identified an unknown metal by determining which of the following properties

molar mass

A metal with a higher specific heat will raise the temperature of the calorimeter _________ than a metal with a lower specific heat

more

indeterminate error

random error that you can not discover