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You add 100.0g of water at 55.0C to 100.0g of ice at 0.00C. Some of the ice melts and cools the water to 0.00C. When thermal equilibrium is established at 0.00C, what mass of ice has melted?
Delta H of fusion for water is 333 J/g.
What is the wavelength of light in nm with an energy of 486 kJ/mol? Is it in the visible region?
calculate the final temperature of the water after all the ice melts. heat capacity of H2O: 37.7 J/mol*k heat capacity of H2O l: 75.3 J/mol*k enthalpy of fusion of H2O: 6.01 kJ/mol
hydrazine n2h4 can be made on paper by reaction of molecular nitrogen and molecular hydrogen2 h 2 g n 2 g --gt n 2
Explain the possible effect of your results of the following experimetnal error or variations (a) the reaction flask you used in the kinetic runs was rinsed with water and not dried
The rate constant of the reaction A ? B + C is 2.75 x 10-7 s-1 at a certain temperature. The initial [A] is 2.19 M. How many days would pass before A had decomposed to the extent that 0.601 M of A remained?
A 4.0 mL of 2.00 M Fe 3+ (aq) solution are mixed with 60.0 mL of 3.00 M SCN-(aq) solution. What is the equilibrium concentration of FeSCN2+ (aq) if the complex formation constant is 189 for the reaction
The following equilibrium is established: 1 H2O(g) + 1 CH4(g) ? 1 CO(g) + 3 H2(g) At equilibrium 0.03264 mol of CH4 is found in the reaction mixture. (a) Calculate the equilibrium partial pressures of H2O, CH4, CO, and H2. Peq(H2O) = . Peq(CH4) = ..
A particular compound contains, by mass, 41.4g carbon, 3.47g hydrogen, and 55.1g oxygen a 0.100 mol sample of this compound weights 11.60 g.
(a) When 1.50 mol of Al and 3.00 mol of Cl2 combine in reaction 2 Al(s) + 3 Cl2(g) -----> 2 AlCl3(s), which is the limiting reactant. (b) How many moles of AlCl3 are formed. (c) How many moles of the excess reactant remain at the end of the reacti..
Assuming all the NH3 dissolves and that the volume of the solution remains at 0.300L , calculate the pH of the resulting solution
Bond energy of O2 is 0.494 MJ/mole. What is the wavelength of light that has enough energy to break the O2 bond? What do you call the wavelength range of this photon
Problem- What is the pH change of a 0.260M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.170M with no change in volume
Complete the following reaction showing what ions calcium chloride will produce upon dissolving in water: CaCL2(aq) --> b. Calculate the molarity (in m) of all solutes
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