You must show your work in order to receive maximum credit. Express each of the

Question

You must show your work in order to receive maximum credit. Express each of the following numbers in scientific notation (1 pt each) 1500 m. distance of a foot race. 0.00022 g/m^3, the threshold for detecting nun gen dioxide (NO_2) by smell. 0.0000075 m, the diameter of a blood cell Express each of the following numbers in decimal notation. (1 pt each) 8.5*10^4g, the mass of air in an average room 1.0*10^-5G, the recommended daily allowance of vitamin D What is your height? Convert height into each of the following units (2 pts each) Show your work. meter (m) millimeter (mm) A laboratory beaker can hold 200 ml how many fluid ounces can hold? (1 L = 33.81 ) Show your work A European rental car travel 17 km on a liter of fuel, How many miles can it travel on a liter of fuel ? Show your work Perform each of the following conversions within the metric system. Show your work 1641 m to mm 7.30g to kg 350 L to mL An orange has a volume of 54 cm^3 Concert this quantity to Show your work A 3.8 0 ml. sample of mercury has a mass of 51.4 g. What is the density of mercury m in g/cm^3 Show your work

Explanation / Answer

1) (a) 1500 = 1.5 X 10^3

(b) 0.00022 = 2.2 X 10^-4

(c) 0.0000075 = 7.5 X 10^-6

2) decimal notation

(a) 8.5 X 10^4 = 85000

(b) 1 X 10^-5 (we will put 5 zeros before 1 and after decimal)

Ans: 0.000001

3) Let my height is 160 cm

So (a) in meters = 1.6 metres

As 1cm = 0.01 m

(b) in millimeters

1 cm = 10 millimeters

160cm = 1600 millimetrs

4) given 1L = 33.81 Fl oz

Now 1L = 1000mL

so 200mL = 200 / 1000 L = 0.2 L

So 0.2 L = 0.2 X 33.81 Fl Oz = 6.67 fl Oz

5)

we know that

1Km = 0.621 miles

So 17 kms = 17 X 0.621 miles = 10.557 miles

So it can travel 10.557 miles / hour

6)

a) we know that 1 meter= 1000 millimeter

So 1641 meters = 1641 X 1000 millimeter = 1641000 millimeters = 1.641 X 10^6 mm

b) we know that

1 gram = 0.001 Kg

So 7.3 grams = 0.001 X 7.3 kg = 0.0073 Kg

c) 1 L = 1000mL

so 350 L = 350 X 1000mL = 3.5 X 10^5 mL = 350000mL

7) 1 cubic cm = 0.061 cubic inch

so 54 cm^3 = 0.061 X 54 in^3 = 3.294 in^3

8) The density = Mass / Volume

Density = 51.4 grams / 3.80 mL = 13.52 g / mL

1mL = 1cm^3

So 13.52 g /mL = 13.52 g / cm^3

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