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Compute the enthalpy change upon converting 36.0 g of ice at -25 °C to water vapor (steam) at 125°C under a constant pressure of 1 atm. The specific heats of ice, water and steam are 2.03 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2OHfus = 6.01 kJ/mol and Hvap = 40.67 kJ/mol.
Write balanced chemical equation and evaluate the molecular weight of the reactants and Calculate the molecular weights of the reactant.
10mL of a commercial peroxide solution measured with a volumetric pipet was diluted to 100mL in a volumetric flask and mixed thoroughly 25 mL of the diluted peroxide was titrated. Assume that the diluted peroxide solution had a density of 1.000 gm..
Calculate the mass of water vapor produced when 6.00 L of propane (C3H8) gas undergo complete combustion at a temperature of 250C and a pressure of 1.00 atm.
Calculate the number of molecules inside the cell, which is 3.6um long and 1.2 um in diameter.
a tank of compressed o2 gas is 6.00 ft high and has a diameter of 8.00 in. the tank is filled with o2 to a pressure of
a gas is heated from 269 k to 283 k while its volume is increased from 21.5 l to 37.0 l by moving a large piston within
Phosphorylation of a serine residue on the dual function enzyme PFK2/FBP2 switches it from a kinase active, phosphatase inactive form to a kinase inactive, phosphatase active form
For which of the following equilibrium systems will the equilibrium position temporarily shift in the forward direction when the pressure is increased
Which species is the best reducing agent?
the equilibrium pressure of h2 over solid uranium and uranium hydride uh3 at 500 k is 139 pa. calculate the standard
Write a net ionic equation for the reaction that occurs when cobalt(II) carbonate (s) and excess hydrochloric acid (aq) are combined.
500.0ml of 3.00m hydrochloric acid reacts with 3.4 zg s. determine the limiting reactant and also calculate how much of
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