# Project #28187 - Chemistry

What SI prefixes correspond to the following multipliers?

a) 10^3   b)10^-6   c)10^9    d)10^-12     e)10^-2

Which quantity in each of the following pairs is smaller?

a)154 pm or 7.7x10^-9 cm

b)1.86x10^11 um or 2.02x10^2 km

c)2.9 GA or 3.1x10^15 uA

How many significant figures are in each of the following measurements?

a) \$130.95    b)2000.003 g     c) 5 ft 3 in.     d)510 J      e) 5.10x10^2 J     f) 10 students

Convert the following quantities into SI units with the correct number of significant figures:

a) 5.4 in    b) 66.31 lb     c) 0.5521 gal     d) 65 m/h     e) 978.3 yd^3     f) 2.380 mi^2

The height of a horse is usually measured in hands instead of in feet, where 1 hand equals 1/3 ft (exactly).

a) how tall in centimeters is a horse of 18.6 hands?

b) What is the volume in cubic meters of a box measuring 6x2.5x15 hands?

Suppose that your oven is calibrated in degrees Fahrenheit but a recipe calls for you to bake at 175 degrees C. What oven setting should you use?

A vessel contains 4.67 L of bromine, whose density is 3.10 g/cm^3. What is the mass of the bromine in the vessel (in kilograms)?

Gaseous hydrogen has a density of 0.0899 g/L at 0 degrees C, and gaseous chlorine has a density of 3.214 g/L at the same temperature. How many liters of each would you need if you wanted 1.0078 g of hydrogen and 35.45 g of chlorine?

A large tanker truck for carrying gasoline has a capacity of 3.4x10^4 L.

a)What is the tankers capacity in gallons?

b)If the retail price of gasoline is \$3.00  per gallon, what is the value of the trucks full load of gasoline?

A 1.0 ounce piece of chocolate contains 15 mg of caffeine, and a 6.0 ounce cup of regular coffee contains 105 mg of caffeine. How much chocolate would you have to consume to get as much caffeine as you would from 2.0 cups of coffee?

 Subject Science Due By (Pacific Time) 04/22/2014 12:00 am
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