Unit Conversion and Significant Digits

How many mL are in 2.50 L?

• $\frac{2.50L}{1}\times\frac{1000mL}{1L}$

• $\frac{2.50L}{1}\times\frac{1\ mL}{1000L}$

• $\frac{1}{2.50L}\times\frac{1L}{1000mL}$

• $\frac{2.50L}{1}\times\frac{100mL}{1L}$

How many L are in 250.0 mL?

•  $\frac{250.0mL}{1}\times\frac{1000mL}{1L}$ 

•  $\frac{250.0mL}{1}\times\frac{1\ L}{1000mL}$ 

•  $\frac{1}{250.0mL}\times\frac{1000mL}{1L}$ 

•  $\frac{250.0mL}{1}\times\frac{1L}{100mL}$ 

What is the equivalency for mL and L?

• 1000 L = 1 mL

• 100 mL = 1 L

• 1000mL = 1L

• 100 L = 1 mL

What is the equivalency for cm and m?

• 1000 cm = 1 m

• 100 m = 1 cm

• 1000m = 1cm

• 100 cm = 1 m

What is the equivalency for km and m?

• 1000 km = 1 m

• 100 m = 1 km

• 1000m = 1km

• 100 km = 1 m

How many significant digits are in 1.0010

• 1

• 2

• 4

• 5

Round 700.0 to two significant digits

• 70

• 700

• 7.0

• 7.0 x 10²

How many kg are in 75.00g?

• $\frac{75.00g}{1}\times\frac{1000kg}{1g}$

• $\frac{75.00g}{1}\times\frac{1kg}{1000g}$

• $\frac{1}{75.00g}\times\frac{1000g}{1kg}$

• $\frac{75.00g}{1}\times\frac{1kg}{100g}$

How many g are in 0.320 kg?

•  $\frac{0.320kg}{1}\times\frac{1000kg}{1g}$ 

•  $\frac{0.320kg}{1}\times\frac{1g}{1000kg}$ 

•  $\frac{0.320kg}{1}\times\frac{1000g}{1kg}$ 

•  $\frac{0.320kg}{1}\times\frac{1\ kg}{1000\ g}$ 

How many kJ are in 3500. J?

• $\frac{3500.J}{1}\times\frac{1kJ}{1000J}$

• $\frac{3500.J}{1}\times\frac{1000J}{1kJ}$

• $\frac{3500.J}{1}\times\frac{1000kJ}{1J}$

• $\frac{3500.J}{1}\times\frac{1J}{1000kJ}$