Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chemistry PP

Module 2 - Practice Problems

2.1 Convert 15.0 °C into Fahrenheit. 59 °F
2.2 The temperature of deep space is 3.5 K. What is that in Celcius? In Fahrenheit? -269.5 °C -453.1 °F
2.3 Some parts of the western United States regularly reach temperatures of 115 °F in the summer. What is that in °C? 46 °C
2.4 The average person uses 2,500.0 Cal of energy per day. How many Joules is that? Remember that a food calorie (Cal) is 1,000 chemistry calories (cal). 1.046 x 10⁷
2.5 How many Joules does it take to heat up 15.1 kg of glass from 15 °C to 45 °C? (refer to Table 2.1) 379,251.6 J
2.6 124.1 g of an unknown substance absorbs 50.0 kJ of heat and increases its temperature by 36.3 °C. What is its specific heat? 11.1 J/g∙°C
2.7 A 245 g piece of copper at room temperature (25 °C) loses 456.7 Joules of heat. What will its new temperature be? -4.8 °C
2.8 Review question #7 mentioned that drinking ice-cold water is a way of burning excess Calories. Calculate how many Calories are burned when a 12-ounce (3.40 x 10²g) glass of water at 0.0 °C is warmed up to body temperature (37.0 °C). 12.58 Cal
2.9 A calorimeter is filled with 150.0 g of water at 24.1 °C. A 50.0 g sample of a metal at 100.0 °C is dropped in this calorimeter and causes the temperature to increase a total of 5.4 °C. What is the specific heat of the metal? 0.96 J/g∙°C
2.10 A 345.1 g sample of copper at 100.0 °C is dropped into a 4.5 g calorimeter made of an unknown substance. If the calorimeter has 150.0 g of water in it and the temperature changed from 24.2 °C to 25.1 °C, what is the specific heat of the calorimeter? -169 J/g∙°C
Created by: LiseBrinkley