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It takes 52.0J to raise the temperature of an 11.9g piece of unknown metal from 13.0C to 24.8C. What is the specific heat for the metal?
a compound is found to have a molar mass of 598 gmol. if 35.8 mg of the compound is dissolved in enough water to make
before a plate is developed. What would happen if a plate were developed in a jar with an atmosphere not saturated with solvent vapor?
Write the reaction mechanism (using arrows) of 6-ketoheptanal + NaOH to form the product 1-cylclopentyl methyl ketone. What type of reaction is this?
Which of the following signs on q and w represent ( work is done on the systemby gaining heat from the surrounding) ? a- q=+, w=- b- q=-, w=+ c- q= + ,w=+ d- q=- , w= -
if 28.7ml of 0.375m sodium hydroxidenaoh are necessary toneutralize 40.0ml of a hydrochloric acid hcl solution
Specify the volume of mineral water to add to each of the five flasks.
metallic copper is formed when aluminum reacts with copperii sulfate. how many grams of metallic copper can be obtained
He was surprised that most of the white solid melted sharply between 121 and 122 C but that a small amount remained unmelted even at temperatures above 200 C. Explain this behavior.
When one mole of hydrogen decomposes into H atom the change in enthalpy is 435. 88 kJ/mole. What is the formation enthalpy, ?Hf for hydrogen atom
A 75.0 mL volume of 0.200 M NH3(Kb=1.8e-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 21.0 mL of HNO3
Referring to the line representation, is the cell reaction spontaneus or non-spontaneous? Explain your answer.
explain why does atp synthesis occur in the presence of rotenone an inhibitor of one the reactions in the electron
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