If reaction gave a yield of 110% you might:
suspect the purity or identity of your product
Which of the following is not a goal of this experiment?
to purify chalk
Percent Yield, is a measure of:
the efficiency of a reaction
10mL of 1.5M CaCl2, contains how many moles of chloride ions?
0.030
It is critical to dispense the exact quantities of the reagents specified?
False
The smallest division on a buret is:
0.1
A limiting reagent is:
the reagent that is consumed first
The anticipated 'Percent Yield' in this experiment is:
>80%
Consider the reaction:
N2(g) + 3H2(g) = 2NH3(g)
if 4 moles of nitrogen gas is reacted with 3 moles of hydrogen then:
this reaction would produce 2 moles of NH3(g)
Aqueous solutions of sodium carbonate and calcium chloride when mixed produce calcium carbonate solid and sodium chloride. When this reaction is balanced the stoichiometric coefficient in front of sodium chloride is
2
What is the ~ molarity of the CaCl2 solution?
0.5
What is the suggested beaker size for your water bath?
400mL
What degree of precision is required between the weighing when drying the CaCl2?
within 0.02g of each other
Consider the reaction:
N2(g) + 3H2(g)=
2NH3(g)
If upon reacting 2 moles of N2(g)
with 3 moles of H2(g) you produced 1 mole of
NH3(g). The percent yield would be:
50%
The fire extinguisher is located:
in the middle of the lab and in the hallway
When using a buret all volumes should be recorded to:
2 decimals
The formula for sodium carbonate is:
Na2CO3