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OpenStudy (cometailcane):
Calculate the amount of energy in joules evolved when 72 grams of 2.0 M hydrochloric acid is reacted with magnesium and temperature goes from 21.3˚C to 37.6˚C. Assume that the solution has the density and specific heat of water. Use abbreviated units.
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OpenStudy (cuanchi):
use the formula m x C x deltaT =q since you measured evolved energy has to be negative
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