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Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
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How does changing the surface area increase the reaction rate of a chemical change
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Chemistry, 24.06.2019 00:30
Suppose that one of millikan's oil drops has a charge of −4.8×10−19 c. how many excess electrons does the drop contain? .
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