04/23/21

What is the final temperature of 111 g of water initially at 17.1°C from which 1910 J of heat is removed? Cp of water is 4.186 J/g°C.

What is the final temperature of 111 g of water initially at 17.1°C from which 1910 J of heat is removed? Cp of water is 4.186 J/g°C. Show all your work and round your answer to the nearest... more
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04/23/21

The specific heat of ethanol is 2.44 J/g°C. How many joules of energy are required to heat 50.0 grams of ethanol from -20°C to 68°C? Show your work.
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04/23/21

A piece of metal with a mass of 4.68 grams absorbs 256 J of heat when its temperature increases by 182C. what is the specific heat of the metal?

A piece of metal with a mass of 4.68 grams absorbs 256 J of heat when its temperature increases by 182C. what is the specific heat of the metal? Show your work and round your answer to the nearest... more
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04/23/21

A 155 g sample of an unknown substance as heated from 25°C to 40°C. In the process, the substance absorbed 5696 J of energy. What is the specific heat of the substance?

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04/23/21

A 4.0 grams sample of glass was heated from 274 K to 314 K and was found to have absorbed 32 J of heat. What is the specific heat of this type of glass?

A 4.0 grams sample of glass was heated from 274 K to 314 K and was found to have absorbed 32 J of heat. What is the specific heat of this type of glass? Show all your work and round your answer to... more
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04/19/21

Why is copper (II) oxide added in excess to sulphuric acid in order to make a soluble salt?
Why is copper (II) oxide added in excess to sulphuric acid in order to make a soluble salt?
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04/11/21

Does the equilibrium shift left or right when NaOH is added to : Fe3+ + SCN- <=> [FeSCN]2+ ?
OK, so in class, the initial color was this light reddish brown for FeSCN2+. When Agno3 was added, it formed a white precipitate by the decreasing in SCN and increase in Fe3+, which shows the... more
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11/21/13

how many grams of barium sulfate will be formed from 60.0 g of barium nitrate and 2.0 grams of sodium sulfate
How do I calulate this problem
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11/07/13

Resonance Contributor
How can I draw Resonance contributors ?
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