3A Quiz

The density of a solution is 1.18 g/mL. Its specific gravity is a) 1.18 b) 11.8 c) 0.118 d) 0.847

a) 1.18

What is the mass of 53mL of ethyl alcohol, which has a density of 0.79g/mL? (D=M/V) a) 42g b) 53g c) 67.1g d) 67g

a) 42g

Mercury has a specific gravity of 13.6. How many milliliters of mercury have a mass of 0.35kg? (D=M/V) a) 4760mL b) 26mL c) 0.026mL d) 0.0257mL

b) 26mL

A potato contains 20g of carbohydrate. If carbohydrate has a calorie value of 4 kcal/g, how many kcal are obtained from the carbohydrate in the potato? (4k/cal / g) a) 20kcal b) 80kcal c) 60kcal d) 5kcal e) 40kcl

b) 80kcal

A nugget of gold with a mass 521g is added to 50.0mL of water. The water level rises to a volume of 77.0mL. What is the density of the gold? (D=M/V) a) 1.00 g/mL b) 0.0518 g/mL c) 6.77 g/mL d) 19.3 g/mL e) 10.4 g/mL

d) 19.3 g/mL

The phrase "ability to do work" is a definition of a) calorie b) heating c) cooling d) energy e) specific heat

d) energy

An example of kinetic energy is a) chemical energy b) a tree c) a coiled spring d) running water e) natural gas

d) running water

A dose of aspirin of 5.0mg per kg of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. The number of milligrams of aspirin that should be administered is (1.00kg = 2.2lbs) a) 53mg b) 1.6mg c) 5.0mg d) 0.59mg e) 19mg

e) 19mg

The energy stored in chemical bonds is a) specific heat b) a calorie c) kinetic energy d) work e) potential energy

e) potential energy