A chemist uses a calorimeter to determine the enthalpy of dissolving of a crystalline substance. She fills the calorimeter with 365 g of water. The water is at room temperature which is 20 C. She adds 92 grams of the solid and fastens the top. Once the materials has completely dissolves, she notes that the new temperature of the water is 9.3 C. Recall that the specific heat of water is 4.18 J/g °C. Using these data, calculate the enthalpy of dissolving (Hdissolving) of the solid in joules per gram (J/g). Work must be shown to earn credit. can you solve this?

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer