MEG-A-MOLE
Stoich + Mole Apps
Oh, that's gas
Feel the heat
Cumulative Stuff
100
What three quantities is the mole equal to?
What is 6.02 x 1023 atoms, 22.4 liters and molar mass?
100
How many moles of nitrogen are in one mole of tryptophan (C11H12N2O2)?
What is 2 moles of nitrogen?
100
What is the ideal gas law?
What is PV=nRT?
100
What is the formula that we use when we are either gaining or losing heat in our heating curve?
What is Q = mcAT?
100
What is the proper sum of the following measurements:
4.36 m + 6.10 m + 2.456 m ?
What is 12.92 m?
200
What is the molar mass of ammonium sulfate?
What is 132. 16 g/mol?
200
How many grams of hydrogen are there in 20 grams of pentene?
What is 3 grams of hydrogen?
200
From all the gas laws that we have learned, what is the only law that has an inverse relationship, and what two variables does it relate?
What is Boyle's Law?
200
Identify what is happening at points 1, 2 and 3.
Point 1 = triple point
Point 2 = critical point
Point 3 = sublimation / deposition
200
What is the name of the straight-chained hydrocarbon with the formula C6H12?
What is hexene?
300
What volume would a 25.0 g sample of CO2 gas occupy at STP?
What is 12.7 liters?
300
A compound is found to be 39.99% Carbon, 53.28% Oxygen and the rest Hydrogen by mass. What is the empirical formula of the compound?
What is CH2O?
300
A gas is contained in a rigid container. The initial temperature and pressure of the gas is 50ºC and 1.00 atm. What will the new pressure be if the temperature is increased to 100ºC and what law relates temperature and pressure?
What is 1.15 atm?
300
The temperature of 335g of water changed from 24.5 C to 26.4C. How much heat did this sample absorb? C for water = 4.18 J/g
What is 2,660 Joules of heat absorbed?
300
The half life of Iodine-131 is 8 days. How long with it take a 1,000 gram sample to decay to 125 grams?
What is 24 days?
400
40.0 grams of sulfuric acid, H2SO4, are dissolved in a 10.0 liter aqueous solution. What is the molarity of the solution?
What is 0.0408 M?
400
How many carbon atoms are in a 15.0 gram sample of benzene, C6H6?
How much is 6.94 x 1023 atoms?
400
A mixture of gasses has 30.0 grams of helium, 60.5 grams of oxygen and 20 grams of xenon. What is the mole fraction of xenon?
What is 0.0159?
400
What is the enthalpy of this reaction? Is this exothermic or endothermic?
What is 50 kJ and an endothermic reaction?
400
Which of the following ions does NOT have this electron configuration 1s22s22p6 :
Mg2+
Na+
O2-
F+
What is F+ ?
500
How many aluminum atoms are in a 15.0 liter sample of SOLID aluminum metal? (Density of aluminum is 2.70 g/mL).
What is 9.04 x 1026 atoms?
500
What mass of lead II chloride (PbCl2) will precipitate if 15.0 mL of a 1.5 M solution of lead II nitrate is added to a solution of sodium chloride?
Pb(NO3)2 + 2NaCl → PbCl2 + 2NaNO3
What is 6.3 grams of lead II nitrate?
500
What volume of carbon dioxide will be produced when 12.0 grams of butane, C4H10 (molar mass = 58.15 g/mol), completely burns in oxygen at 25.0°C and 1.18 atm?
2 C4H10 + 13 O2 --> 8 CO2 + 10 H2O
What is 17.1 liters?
500
How much energy is required to heat a 25.0 g sample of water from 25.0 C to 115.0 C? (specific heat of water = 4.184 J/g, Hvap = 40.7 kJ/mol) Keep track of your units...
What is 66.02 kJ or 66,020 J?
500
Which series of elements represents increasing electronegativity:
F,B,Li
O,S,Se
As,P,N
Cl,S,P
What is As,P,N ?