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Two different substances at different temperatures are allowed to come in contact and thermally equilibrate. The mass of the first substance "A" is 31.00 g and its inital temperature is 21.4 degree cellsius. Substance "A" is allowed to come into contact with substance "B". Substance "B" has a mass of 46.28 g and its inital temperature is 86.5 degrees celsius. These two substances reach thermal equilibrium at a temperature of 64.2 degree celsius. If the specific heat capacity of substance "B" is 1.17 J / g-C, what is the specific heat of substance "A". (assume no heat is lost to the surroundings)

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