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