Measurement

Sig Figs

100

Calculate:

57+ 98.6+2.3

157.9 --> 158

200

Calculate:

24.05 - 12.901 + 5.01

16.159 --> 16.16

300

Calculate:

300 x 46 x 1.0

13,800 --> 10,000

400

Calculate:

(98.00 / 11) x 5.003

44.57 --> 45

500

Calculate:

(34.01 + 5.09) x (54.609 - 0.00001)

(39.10) x (54.60899) = 2135.21151 --> 2135

Temperature

100

Convert:

55.5 degrees Celsius into Kelvin

328.5 K

200

Convert:

-55.5 degrees Celsius into Kelvin

217.5 K

300

Convert:

306 Kelvin into degrees Celsius

33 degrees Celsius

400

Convert:

17 Kelvin into degrees Celsius

-256 degrees Celsius

500

Convert:

48.65 Kelvin into degrees Celsius

-224.35 degrees Celsius

Scientific Notation

100

Convert:

9,022,000 

9.022000 x 10⁶ --> 9.022 x 10⁶ 

200

Convert:

462201.00

4.6220100 x 10⁵

300

Convert:

3742.0045

3.7420045 x 10³

400

Convert:

0.00456810

4.56810 x 10^-3

500

Convert:

0.000000100030

1.00030 x 10^-7

Density

100

Find the mass of 34.450 mL of benzene. The density of benzene is 0.8765 g/mL.

30.1954 --> 30.20 g

200

A block of lead has dimensions 1 cm by 1.0 cm by 1.00 cm. The block's mass is 1450. g. Calculate the density of this block of lead.

1450./1 = 1450 = 1000 g/cm³

300

1500.0 g of iron is added to a graduated cylinder containing 50. mL of water. The water level rises to the 50.5 mL mark. Calculate the density of iron.

(50.5 - 50.) = 0.5 = 1

1500.0/0.5 = 3000

400

What volume of silver metal will have a mass of exactly 24 g?

24 / 10.5 = 2.2857 = 2.3 cm³

500

What volume of aluminum metal will have a mass of exactly 2500?

2500 / 2.70 = 925.93 = 930 cm³

Metric Conversions

100

Convert: 

0.5 kg to g 

1 kg / 1000 g = 0.5 kg / x 

x = 500 g

200

Convert:

0.608 g into kg

1 kg / 1000 g = x / 0.608 g

x = 0.000608 kg

300

Convert:

59.60 L to mL

1 mL / .001 L = x / 59.60 L

x = 59600 mL

400

Convert:

0.00305 mL to L

1 mL / .001 L = 0.00305 mL / x

x =.00000305 L

500

What is the name of the unit used to measure pressure?

pascal