Chemistry, 14.09.2019 07:30, egreer9287
Answer the following using the following information: ∆hfus=6.02 kj/mol; ∆hvap= 40.7 kj/mol; specific heat of water is 4.184 j/g∙˚c; specific heat of ice is 2.06 j/g∙˚c; specific heat of water vapor is 2.03 j/g∙˚c.
a. how much heat is required to vaporize 25 g of water at 100˚c?
b. how much heat is required to convert 25 g of ice at -4.0 ˚c to water vapor at 105 ˚c (report your answer to three significant figures)?
c. an ice cube at 0.00 ˚c with a mass of 8.32 g is placed into 55 g of water, initially at 25 ˚c. if no heat is lost to the surroundings, what is the final temperature of the entire water sample after all the ice is melted (report your answer to three significant figures)?
Answers: 1
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Chemistry, 22.06.2019 06:30, luhmimi17
Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
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Chemistry, 22.06.2019 11:50, hadwell34
Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘
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Answer the following using the following information: ∆hfus=6.02 kj/mol; ∆hvap= 40.7 kj/mol; spec...
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