WorksheetsStoich Lab 2 Quiz
Total questions: 8
Worksheet time: 14mins
How many grams of copper (II) sulfate will you measure on the scale?
0.1 g
1 g
0.3 g
3 g
What tool will you use to measure 4 mL distilled water?
a test tube
a 10mL graduated cylinder
a 50mL graduated cylinder
a beaker
Step 5 says you will dissolve the crystals into the water. Where will this happen?
in the graduated cylinder
in a beaker
in the sink
in a test tube
Step 5 says you will dissolve the crystals into the water. Based on this, what is the typo in step 7?
you won't pour the NaOH into the test tube
the CuSO4 is supposed to be aqueous (aq)
aqueous NaOH is a compound, not a mixture
you're mixing with a solid, which isn't a "solution"
What should be done before step 6?
chem rinse the test tube
put your thumb over the test tube and shake
stir the NaOH solution with a stirring rod
none of the above
Based on step 9, what sign of a chemical change should you anticipate?
a temperature change
gas formed
precipitate
flame
According to step 11, where will you apply the drops of pH indicator?
to the dry filter paper
into the test tube
into the funnel
below the funnel and into the beaker
According to step 15, you will weigh your filter paper and precipitate the next day. Why can't you weigh it the moment the liquid filters through?
