The molar heat capacity of ethane is represented in the temperature range 298 k to 400 k by the empirical expression cp, m in j k1 mol 14.73 + (0.1272 t in k). the corresponding expressions for c(e) and h2(g) are given in the back of the atkins textbook. calculate the standard enthalpy of formation of ethane at 373 k from its value at 298 k, in kj mol

Is this a single replacement reaction or there is no

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?

Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in water? check all that apply. view available hint(s) check all that apply. sodium fluoride, naf octane, c8h18 propanol, ch3ch2ch2oh potassium iodide, ki benzene, c6h6