22 Questions
What is the standard form of 0.0038?
38 × 10^-3
If you move the decimal point in a decimal two places to the right, what should you do?
Multiply by 10^-2
In the standard form, what is the characteristic if n = 7.5 × 10^-2?
-2
What is the standard form of 0.000025?
25 × 10^-5
If you move the decimal point in a decimal three places to the left, what should you do?
Multiply by 10^3
For a decimal in standard form, what range does the mantissa 'm' belong to?
(0, 1)
What is the equivalent of 1 joule in ergs?
1 ´ 10^7 ergs
How many grams are in a metric tonne?
1000 grams
What is the equivalent of 1 mile in kilometers?
1.609 kilometers
How many quarts are in a gallon?
4 quarts
What is the equivalent of 1 British thermal unit in joules?
1055.06 joules
How many feet are in a kilometer?
3280 feet
What is the amount of heat required to raise the temperature of 5 grams of water from 15.50°C to 20.50°C?
15 cal
If the specific heat of a substance is 0.5 cal/g°C, how much heat is needed to raise the temperature of 10 grams by 10°C?
100 cal
How much energy is required to raise the temperature of 2 moles of water by 5 K? (Given: 1 cal = 4.184 J)
167.36 J
If a substance has a specific heat of 25 J/kg°C, how much energy is required to raise the temperature of 2 kg by 10°C?
1000 J
What is the mass of a substance that requires 5000 J of energy to raise its temperature by 20°C if its specific heat is 0.1 J/g°C?
2500 g
How many kilocalories are needed to raise the temperature of 1 kg of water by 20 K? (Given: 1 kcal = 4184 J)
41.84 kcal
If a substance has a specific heat of 0.05 kcal/kg°C, how much energy is required to raise the temperature of 5 kg by 100 K?
125 kcal
What is the weight of a substance that requires 1000 calories of energy to increase its temperature by 10°C if its specific heat is 0.5 cal/g°C?
4 g
How many joules are needed to heat 500 grams of a substance with a specific heat of 20 J/kg°C by 30°C?
300,000 J
What is the amount of heat energy needed to raise the temperature of 2 moles of a substance by 15 degrees Celsius if its specific heat capacity is 30J/mol°C?
54000 J
Test your knowledge on molar masses of different elements and common conversion factors in chemistry. This quiz includes molar masses of various elements and useful conversion factors commonly used in chemistry calculations.
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