Chemistry Calculations

• Convert 1000ml to L

• Convert 5943g to kg.

• Convert 5.68L to mL

1 L

5.943 kg

5, 680 mL

• Convert 2.5841 kg to g.

• How many significant digits does 5.3937 have?

• How many significant digits does 5.0037 have?

2, 584.1 g

5

5

• How many significant digits does 0.3937 have?

How many significant digits does 0.3037 have?

How many significant digits does 0.3030 have?

4

4

4

• How many significant digits does 50.3700 have?

• How many significant digits does 0.0037 have?

How many significant digits does 050.30630 have?

6

2

7

• Write the number 58,000 in scientific notation.

• Write the number 0.00058 in scientific notation.

• Write the number 58,000.0 in scientific notation.

5.8 x 10^4

5.8 x 10 ^-4

5.80000 x 10^4

• Write 5.0 x 10 ^ 6 in a standard number.

Write 4.8 x 10 ^ -4 in a standard number.

Write 4.683 x 10 ^ 2 in a standard number.

5, 000, 000

0.00048

468.3

• Report to the correct number of significant digits. 3.50mL + 0.15 L + 45.6mL

• Report to the correct number of significant digits. 5.4g -1.3 g

4.0mL

• Report to the correct number of significant digits. 3.4cm x 3.61 cm x 2 cm

199.1 mL

1.0 g/mL

20 cm³

• Report to the correct number of significant digits.• 3.5048 – 3.294678 x 4.03 =

• Report to the correct number of significant digits.

367g + 3.4056 kg =

• Report to the correct number of significant digits.• 44C x 34.5g

2.3 g

-9.77

3770. g

7.0 x 10²

• If your beaker + oil + kernels before the lab was 107.9 and the beaker + oil + kernels after the popping was 106.7, what is the mass of the water in the kernels?

• If the mass of the kernels from above was 2.7 before the lab what is the mass after the lab?

• What is the % of water in the popcorn using the data above?

1.2 g

1.5 g

44%

• The following measurements were taken 4.5 g, 4.6g, 4.6g. Actual = 5.5 g. Are these values precise, accurate, neither, or both?

• If the lines on a graduated cylinder increase by one, what place value can you measure to?

• If a graduated cylinder increases by 0.2 what place value can you measure to?

Precise, not accurate

tenths

hundredths

• If the measurement from a ruler was 3.50cm, what were the increments on the ruler?

• If the mass from a triple beam balance was recorded as 150 g is this correct?

• What is the correct formula for percentage error?

0.1 cm (or 1 mm)

No, the measurement must go to the hundredths, or two decimal places.

E-A x 100

A