10/02/2017
Lab skills Total Questions: 10
Most Correct Answers: #5 Least Correct Answers: #1
1. NaCl has a molecular weight of 58.44 g
1 millimole of NaCl weighs
A 58.44 g
7/49
B 5.844 g
1/49
C 0.5844 g
18/49
D 58.44 mg
11/49
E 5.844 mg
2/49
2. 100 microlitre =
A 0.1 litre
3/49
B 0.1 millilitre
23/49
C 0.01 litre
2/49
D 0.01 millilitre
6/49
E none of the above
6/49
3. A concentration of 5g/100ml equals (2 correct answers)
A 50 g/litre
27/49
B 0.5 g/litre
5/49
C 0.5 g/ml
6/49
D 50 mg/ml
16/49
E 5 mg/ml
9/49
4. Centrifuge can
A separate solids from solids
3/49
B evaporate water
1/49
C kill off microbes
0/49
D separate solids from liquids
30/49
E create mixtures
2/49
Page 1 of 3
Lab skills Total Questions: 10
Most Correct Answers: #5 Least Correct Answers: #1
1. NaCl has a molecular weight of 58.44 g
1 millimole of NaCl weighs
A 58.44 g
7/49
B 5.844 g
1/49
C 0.5844 g
18/49
D 58.44 mg
11/49
E 5.844 mg
2/49
2. 100 microlitre =
A 0.1 litre
3/49
B 0.1 millilitre
23/49
C 0.01 litre
2/49
D 0.01 millilitre
6/49
E none of the above
6/49
3. A concentration of 5g/100ml equals (2 correct answers)
A 50 g/litre
27/49
B 0.5 g/litre
5/49
C 0.5 g/ml
6/49
D 50 mg/ml
16/49
E 5 mg/ml
9/49
4. Centrifuge can
A separate solids from solids
3/49
B evaporate water
1/49
C kill off microbes
0/49
D separate solids from liquids
30/49
E create mixtures
2/49
Page 1 of 3
