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What is the pressure inside a closed container (2 L) that held 25 g of ice and was given 70.0 kJ of thermal energy?
Assume all of the energy went into the H2O, this was done at sea level, and the container is unaffected by the temperature of its surroundings.
The starting temperature of the ice was -5 C.
A compound with the molecular weight of 391.98 was determined to be 3.1 % Hydrogen, 31.5 % Phosphorous, and 65.4% Oxygen. Determine the empirical formula and molecular formula for the compound.
An aqueous solution is 5.80% methanol (CH3OH) by mass with d= 0.988 g/ml. What is the molarity of CH3OH in this solution
What is the hydronium ion concentration of a solution with an hydroxyl ion concentration of 1.8 x 10^-10 M? D) What is the hydronium ion concentration of a solution with an hydronium ion concentration of 5.13 x 10 ^-9 M?
An ice cube of mass 9.0 g at temperature 0°C is added to a cup of coffee, whose temperature is 85 °C and which contains 120 g of liquid. Assume the specific heat capacity of the coffee is the same as that of water. The heat of fusion of ice (the heat..
A sample gas mixture contains the following quantities of 3 gases. The sample gas a volume of 2.50 L and temperature of 16.6 C. what is the partial pressure for each gas in mmHg
Calculate the percent ionization of 7x10^-3 M butyric acid in a solution that already contains 8x10^-2 m Butanoate. (Ksp for the butanoic acid is 1.5x10^-5
the first order reaction a ---gt products has a half life of 46.2 minutes at 25c and 2.6 minutes at 102 c. calculate
By what factor does the fraction of collisions with energy equal to or greater than activation energy of 100kJ/mol change if the temperature increases from 19.0 c to 50.0 c ? Give in scientific notation.
Zinc hydroxide is only very slightly soluble in water. The reaction by which it goes into solution is: Zn(OH)2 Zn2+ + 2 OH- b. its possible to dissolve significant amounts of Zn(OH)2 in solutions in which the concentration of either Zn2+ or OH- ..
HSO4^-(aq) + H2O(l) H3O^+ (aq) + SO4^2- (aq) Ka for aqueous dissociation of HSO4- is 1.2*10^-2 What is the pH of a sol containing equal concentrations of SO4^2- and HSO4^-
A water solution containing 2.00 g of an unknown molecular substance dissolved in 10.00 g of water has a freezing point of 4.0°C. a. Calculate the molality of the solution.
Calculate what will be the amount of heat, q, absorbed by the calorimeter apparatus also express your answer in kJ? (heat capacity = 2.677 x 103 J/K)
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