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Two 20.0-g ice cubes at -16.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
assuming no heat loss, and that the specific heat (capacity) of water is 4.184 J/g*K, what is the heat capacity of the copper in J/K?
Calculate the heat released (kJ) in the reaction of 2.20 g of sulfur dioxide gas and excess oxygen gas to form sulfur trioxide gas
What is the molecular weight of a gas if a 31.0 g sample has a pressure of 836 mm Hg at 25.0°C in a 2.00 L flask? (R= 0.0821 L atm/mol K)
Draw the energy profile diagram to show the possible intermediate and the transition states.
If the total pressure in the cylinder is 2430 mmHg, what is the partial pressure of each of the components? Assume constant temperature.
What is the pH when 50.0mL of a 0.53M solution of CH3NH2 is titrated with 17.70mL of a 0.37M soltion of perchloric acid?
The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.800 miles.
How many grams of iron are formed when 275 grams of carbon monoxide react with excess Fe2O3
Hydrogen gas was collected over water in a eudiometer at 25 C when the atmospheric pressure was 752 mm Hg. What was the pressure of the hydrogen gas?
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.75 cm^2 .
briefly describe your synthetic strategy. you may use any reagents of your choice. if any reagent you wish to use is unstable and has a small shelf-life
An electrochemical cell is constructed in which one half-cell contains AgN03 solution in contact with an Ag strip, and the other half-cell contains magnesium nitrate solution, Mg(N03h, in contact with a Mg strip.
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