Conversions
Accuracy, Precision, and Calculations with Sig Figs
Sig Figs
Density
Periodic Table
100

Convert 5000 grams (g) to kilograms (kg).

5 kg

100

If I hit the center of a target multiple times in a row, am I accurate, precise, or both?

Both Accurate and Precise

100

How many sig figs are in the following number?  

456 grams

3 sig figs

100

What is the formula for density?

d = m/v

100

What is the name of a positive ion?

Example: Na+

Cation

200

Convert 1.25 grams (g) to milligrams (mg).

1250 mg

200

If I hit the left side of a target multiple times at the same location, am I accurate and/or precise?

Precise, but not Accurate

200

How many sig figs are in the following number?

15,300 grams

3 sig figs

200

What is the most common unit for the density of a solid?

g/cm3

200

True or False: Elements have similar properties based on their Group in the Periodic Table.

True

300

Convert 544 milliliters (mL) to liters (L).

0.544 L

300

What is the correct number of significant figures resulting from this calculation?

21.3 g x 2.7 g

2 sig figs

300

How many sig figs are in the following number?

9305 meters

4 sig figs

300

What is the most common unit for the density of a liquid?

g/L or g/mL

300

What is the atomic number of potassium (K)?

The atomic number is the number of protons.  Potassium (K) has an atomic number of 19.

400

A person weighs 85 kilograms (kg).  Express this weight in pounds (lb).

Note: 1 lb = 453.6 g

187.39 lb

400

How many decimal places will the answer from this calculation have?

51.2 m + 5.72 m

1 decimal place

400

How many sig figs are in the following number?

45.360 grams

5 sig figs

400

A piece of metal with a mass of 672 g has a volume of 54.0 cm3.  Calculate the density of the metal in g/cm3.

Apply d=m/v.

12.4 g/cm3

400

Is 42Ca an isotype?

Yes, it has two extra neutrons.

500

Convert 1.2 g/mL to g/cm3.

1.2 g/cm3

500

What is the correct answer (with significant figures) for the following calculation?

5.78 mL x 4.356 mL

25.2 mL

500

How many sig figs are in the following number?

0.0032 cm

2 sig figs

500

A fluid has a volume of 152 mL and a density of 15 g/mL.  What is the mass of the liquid in grams?

Apply m=vd.  

2280 grams

500

Find the number of protons, neutrons, and electrons in the following isotope:

18O2-

Protons: 8

Neutrons: 10

Electrons: 10

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