Convertions

1) A child is crawling at a pace of 211 inches every 2.94 min.  Provided that this child is able to maintain this same pace, how many m will this child crawl in 839 sec?

Report the answer to 3 significant figures and explain answer.

2) How many km2 are there in 3.19 x106 ft2? Explain answer

3) How many kL are there in 5.91 ft3? Explain answer

4) How many Gg/hr are there in 7.49 x 106 ton/wk? Explain answer

5) A substance has a specific gravity of 0.822.  What is the mass (in dg) of 23.9 mL of this substance? Explain answer

6) A cube has a density of 2.67 g/cc and measures 5.65 cm on one of its sides.  Given this information, what is the mass of this cube (in kg)? Explain answer

7) How much volume (in L) will 9,543 dg of a substance having a density of 1.32 g/mL occupy? Explain answer

8) A rectangular block of a metal has a mass of 299.742 g and measures 5.77 cm by 2.52 cm by 1.96 cm.  Given this information what is the density of this rectangular block of metal (in g/cc)? Explain answer

9) A solid having a mass of 20.823 g was gently dropped into a graduated cylinder containing 43.4 mL of water.  As a result, the volume inside the graduated cylinder rose to 76.2 mL.  Given this information, calculate the density of this solid (in g/cc). Explain answer

10) The density of a solid is 2.18 g/cm3.  If 24.021 g of this solid are placed into 25.3 mL of water, what will the final water level (in mL) be? Explain answer

11) If 56.8 J of heat energy are added to 3.922 g of a liquid at 30.4°C what will its final temperature (in °C) be if its specific heat is 0.836 J/g•°C? Explain answer

12) When 159 J of heat energy are added to 3.165 g of a liquid, its temperature rises from 49.9°C to 63.2°C.  Given this information, what is the specific heat (in J/g•°C) of the liquid? Explain answer

13) Given that a substance has a specific heat of 3.77 J/g•°C, what mass (in grams) of it would be required if the release of 307 J of heat energy was desired when it is cooled from 76.3°C to 44.1°C? Explain answer

14) Calculate the amount of heat required (in J) that is required to raise the temperature of a 3.824 g sample of a substance having a specific heat of 0.808 cal/g•°C from 40.4°C to 64.8°C Explain answer

15) If 86.7 J of heat energy are added to 2.213 g of a liquid at 43.9°C by how many °C will its temperature rise if its specific heat is 0.848 J/g•°C? Explain answer