Question

multiple choice 2 points
how many times was filtration performed in this procedure?
0
1
2
3
multiple choice 2 points
identify the hazards for this lab on the list below?
items b. through d. are hazards for this lab.
spattering of nacl during h2o evaporation.
contact with corrosive/toxic substances.
burns by hot equipment.
no items listed above were hazards for this lab.

Explanation:

For question 9, without the actual procedure details, we can't be certain, but we need to count the number of filtration steps in the given procedure. For question 10, in a typical lab setting, all the listed hazards (spattering during evaporation, contact with corrosive/toxic substances, burns by hot equipment) are possible depending on the nature of the lab work.

Answer:

1. Cannot be determined without procedure details
2. Items b. through d. are hazards for THIS lab.