Chem H Unit 0 Quiz - van ness - smchs

Express 1840000 in scientific notation.

1.84 × 10⁶

1.8 kilograms contains how many grams?

1.8 × 10³

Convert: 38.6 L = ____ mL

3.86 × 10⁴

The number of cubic centimeters (cm³) in 43.0 mL is …

43.0 cm³

Using the rules of sig figs, calculate the following:
13.4561 - 3.48

9.98

How many sig figs are in the number 1.89 × 10³?

3

In the sum of 54.34 + 45.66, the number of sig figs is …

4 (100.0)

The result of the following calculation has how many sig figs?
(0.4333 J/g °C)(33.12°C - 31.12°C)(412.1 g)

5 (10,441)

An empty graduated cylinder weighs 55.26 g. When filled with 92.6 mL of an unknown liquid, it weighs 92.39 g. The density of the unknown liquid is …

0.401 g/mL

A chemist needs 18.3 g of bromine for an experiment. What volume should she use?(density of bromine = 3.12 g/cm³)

5.87 mL

Which equation correctly relates the Celsius and Kelvin scales?

°C = K - 273

Which metric prefix is used to designate 1/1000?

m

What is the Celsius equivalent of 481 K?

208°C

The Celsius equivalent of 0 K is …

-237°C

37 K is equal to …

-236°C