Calculate the following quantities, and record them in the table:
the number of moles of citric acid used (Use 192.13 grams/mole as the molar mass of citric acid.)
the heat absorbed by the water, in joules (Use Q = mCΔT, where 15.0 milliliters of water has a mass of 15.0 grams. Use 4.186 joules/gram degree Celsius as water’s specific heat capacity.)
the change in internal energy of the mixture of citric acid and sodium bicarbonate. (Assume that energy absorbed by the mixture of citric acid and sodium bicarbonate is released by the water.)
the reaction enthalpy, in joules/mole
Answer these
Moles of citric acid:
Heat absorbed by water (J):
Change in internal energy (J):
Reaction enthalpy (J/mol):
Answers: 2
Chemistry, 22.06.2019 15:30, lizzyhearts
Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)
Answers: 3
Chemistry, 22.06.2019 17:10, glitterpanda2468
Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth
Answers: 2
Chemistry, 22.06.2019 18:00, jeepjose58
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Calculate the following quantities, and record them in the table:
the number of moles of citric aci...
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