To calculate the heat required to raise the temperature of a substance, we can use the formula:q = mcTwhere q is the heat required, m is the mass of the substance, c is the specific heat capacity, and T is the change in temperature.In this case, we have:m = 100.0 g mass of water c = 4.184 J/gC specific heat capacity of water T = 50C - 25C = 25C change in temperature Now, we can plug these values into the formula:q = 100.0 g 4.184 J/gC 25C q = 100.0 4.184 25q = 10460 JSo, the heat required to raise the temperature of 100.0 grams of water from 25C to 50C is 10,460 Joules.