Question

CHEM 1411L Prelab Name Section TA Answer the following questions before you come to lab. You will need to have read and understood the lab to answer most questions, and you may need to find the answers to some of the questions in sources other than your lab manual. (10 points) 1. What is one effective way of finding the temperature of dry metal pieces that have been sitting on the bench since the last lab? 2. Why must we use dry metal for specific heat determinations? 3. How many calories must be added to raise the temperature of 45 g of water from 25°C to 75°C? 4. In a perfect world, your calorimeter will not exchange any heat with its contents. In this perfect world, if hot water loses 75 calories when cool metal pieces are poured in, how many calories do the metal pieces gain? 5. We are using calories as units of heat for this experiment. What are other common units of heat?

          CHEM 1411L Prelab
Name
Section
TA
Answer the following questions before you come to lab. You will need to have read and
understood the lab to answer most questions, and you may need to find the answers to
some of the questions in sources other than your lab manual. (10 points)
1. What is one effective way of finding the temperature of dry metal pieces that have
been sitting on the bench since the last lab?
2. Why must we use dry metal for specific heat determinations?
3. How many calories must be added to raise the temperature of 45 g of water from
25°C to 75°C?
4. In a perfect world, your calorimeter will not exchange any heat with its contents. In
this perfect world, if hot water loses 75 calories when cool metal pieces are poured
in, how many calories do the metal pieces gain?
5. We are using calories as units of heat for this experiment. What are other common
units of heat?

CHEM 1411L Prelab
Name
Section
TA
Answer the following questions before you come to lab. You will need to have read and
understood the lab to answer most questions, and you may need to find the answers to
some of the questions in sources other than your lab manual. (10 points)
1. What is one effective way of finding the temperature of dry metal pieces that have
been sitting on the bench since the last lab?
2. Why must we use dry metal for specific heat determinations?
3. How many calories must be added to raise the temperature of 45 g of water from
25°C to 75°C?
4. In a perfect world, your calorimeter will not exchange any heat with its contents. In
this perfect world, if hot water loses 75 calories when cool metal pieces are poured
in, how many calories do the metal pieces gain?
5. We are using calories as units of heat for this experiment. What are other common
units of heat?

Added by Shawn M.

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