Chemistry Exam #1

density

What quantity does 5.0 g/ml represent?

time

What quantity does 37 s represent?

energy

What quantity does 47 J represent?

mass

What quantity does 39.56 g represent?

volume

What quantity does 25.3 cmˆ3 represent?

time

What quantity does 325 ms represent?

area

What quantity does 500 mˆ2 represent?

volume

What quantity does 30.23 mL represent?

mass

What quantity does 2.7 mg represent?

volume

What quantity does 0.005 L represent?

0.0105 kg

10.5 g = ______kg

1,570 m

1.57 km= ______m

0.0000035 g

3.54 µg= ______g

3,500,000 µmol

3.5 mol= ________µmol

1,200 mL

1.2 L= _______mL

0.000358 mˆ3

358 cmˆ3= ______mˆ3

548.6 cmˆ3

548.6 mL= ______ cmˆ3

(1 mˆ3/ 1,000,000 cmˆ3) = 1

Conversion factor for: 1 mˆ3= 1,000,000 cmˆ3

(1 inch/ 2.54 cm) = 1

Conversion factor for: 1 inch= 2.54 cm

(1 µg/ 0.000001 g) = 1

Conversion factor for: 1µg= 0.000001g

(1 Mm/ 1,000,000 m) = 1

Conversion factor for: 1 Mm= 1,000,000 m

1.71 g/cmˆ3

What is the density of an 84.7 g sample of an unknown substance if the sample occupies 49.6 cmˆ3?

4.53 cmˆ3

What volume would be occupied by 7.75 g of a substance with a density of 1.71 g/cmˆ3?

3.01 x 10ˆ-1 g

(1.54 x 10ˆ-2 g) + (2.86 x 10ˆ-1 g) =

6.96 x 10ˆ9 g

(7.023 x 10ˆ9 g) - (6.62 x 10ˆ7 g) =

3.21 x 10ˆ1 m

(8.99 x 10ˆ-4 m) x (3.57 x 10ˆ4 m) =

...

(2.17 x 10ˆ-3 g) / (5.022 x 10