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An 8.4 g ice cube is placed into 260 g of water. Calculate the temperature change in the water upon the complete melting of the ice. Assume that al of the energy required to melt the ices comes from the water. Express your answer in terms of the initial temperature of water, T. I got T = T (final - 2.6) but the possible answers given don't make sense
a. -.031T - 2.5C b. -2.5T + .031 C c. .031T - 2.5C and d. 2.5T - .031C
A certain compound is made up of three chlorine atoms, one phosphorus atom, and one oxygen atom.
A hydrate of calcium chloride contains 49.3% water and has a formula weight of 219 g/mol. Calculate the molecular formula of the hydrate.
equal amounts of identical liquids is contained by the two insulated beakerxy .intially it is given thatnbsp the
The standard cell potential (Ecell) of the zinc-air battery is 1.65V. If at 25 degrees celcius the partial pressure of oxygen in the iar diffusing through its cathode is 0.22atm, what is the cell potential (Ecell)? Assume the cell reaction is:
a steel sphere has a radius of 1.58in. If this steel sphere has a density of 7.88g/cm3, what is the mass of the sphere in grams?
What type of chemical reaction is the following?
Deficiency of phosphoglyceromutase d) mutation that interferes with the formation of quarternary structure in hemoglobin
A 5.00 % m/m glucose solution has d = 1.02 g/mL. What is the mass of glucose in 362 mL of the solution.
The heater used to heat 1400 L of air in a hot air balloon is turned off. c) A balloon filled with helium at an amusement park is left in a car on a hot day.
A titration is performed by adding 0.400 M KOH to 40.0 mL of 0.300 M HCl. What is the pH after addition of 20.0 mL of the base
If the gas composition is 65% methane (CH4) by volume and 35% carbon dioxide (CO2) by volume, what mass, in kg, of each compound would be held within the container just at the release pressure
Determine the quantity of stock 75% EtOH required to prepare 300ml of a 25% EtOH solution.
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