Molarity/Dilutions
Double question: What are the units of molarity, and what is the equation for dilution calculations?
1. What is moles/L (M)?
2. What is c1v1 = c2v2?
This is the number of grams in 0.35 moles of Ar(g)
mol x g/mol = g
This is the number of moles in 8.8 grams of Fe(s)
What is 0.16 moles?
This is the percent composition of nitrogen in NH3(g)
What is 82% ?
How many litres does one mole of gas occupy at STP?
What is 22.4 L?
How many moles of CaCl2 are required to prepare 2.00 liters of 0.700 M CaCl2?
What is 1.4 moles?
To make a 4.00 M solution, how many moles of solute will be needed if 12.0 liters of solution are required?
What is C(M) = n(mol)/v(L)?
This is the number of grams in 1.75 moles of CO2(g)
What is 77 grams?
This is the percent composition of carbon in CO(g)
What is 43% ?
What is the volume, in litres, of 0.545 mol of CH4 gas at STP?
What is 12.2 L?
If you add 25 ml of water to 125 ml of a 0.15M NaOH solution, what is the molarity of the diluted solution?
What is 0.125 M?
A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper?
What is density = mass (g)/volume (ml)?
What is 8.9 g/ml?
This is the number of moles in 88 grams of potassium sulfide
What is 0.8 moles?
This is the percent composition of hydrogen in (NH4)2S(s)
What is 12% ?
At STP, what is the volume of 0.765 moles of helium?
What is 17.14 L?
If 10.7 grams of NH4Cl is dissolved in enough water to make 800 mL of solution, what will be its molarity?
What is 0.25 M?
If I have 340 mL of a 1.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?
What is c1v1 = c2v2?
What is v2 = v1 + volume added (560 ml)?
This is the number of grams in 0.005 moles of (NH4)2O(s)
What is 0.26 grams?
This is the percent composition of oxygen in aluminum carbonate
What is 62% ?
At STP the density of a gaseous compound is 0.759 g/L. What is the molar mass?
What is 17.00 g/mol?
You have 345 ml of a 1.5 M NaCl solution. How much water would you have to boil off to reach a concentration of 2.07 M? Answer in ml.
What is 95 ml?
A sample of a compound with a formula mass of 34.00 g/mol is found to consist of 0.44 g H and 6.92 g O. Find its molecular formula.
What is g x mol/g = mol?
What is moles/smallest # of mol?
What is MM compound/MM EF = N?
What is N(EF)?
This is the number of moles in 15.5 grams of copper (II) thiocyanate
What is 0.09 moles?
This is the percent composition of water in CuSO45H2O
What is 36% ?
At STP the density of a diatomic gaseous compound is 1.70 kg/m3. Most likely, what is the gas?
What is flourine gas?