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The density of gold is 19.3 g/mL. What volume (in mL) will a 0.728 lb sample of gold occupy
the freezing point of pure camphor is 178.4 degrees C, and its molal freezing-point constant, Kf, is 40.0 degrees C/m. Find the freezing-point of a solution containing 3.00 g of a compound (molar mass=125 g/mol) dissolved in 45.0 g of camphor
Find the number of moles of water that can be formed if you have 174 moles of hydrogen gas and 82 moles of oxygen gas.
What volume of oxygen gas at 25 degrees Celcius and 1.00 atm is produced from the decomposition of 22.33 mL of a 30.0% (by mass) solution of hydrogen peroxide?
The earth uses 15 tettrawatts of power Sunlight striking the earth provides 1.336kw per square meter. The surface area of the earth is 197,000,000 square miles.
when 500 L of a 2.0 M solution of Pb(NO3)2 is mixed with an excess of 1.00 M solution of KI, how many grams of lead(II) iodine are formed?
Indicate the solubility of the following solutes in 100 g of water
If 2.50 g CuSO4 are dissolved in 8.0 x 102 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium
Balance the following reaction, which occurs in acidic aqueous solution, using the smallest possible integer coefficients and adding H+ and H2O as necessary
The chemical formula of hydrogen cyanide is HCN. How many unshared electrons are associated with a molecule of hydrogen cyanide.
At a constant pressure of 0.905 atm, a chemical reaction takes place in a cylindrical container with a movable piston having a diameter of 40.0 cm. During the reaction, the height of the piston drop is by 65.0 cm. (The volume of a cylinder is V ..
A sample of arabinose, C5H10O5, contains 0.6000 moles of the substance. How many carbon atoms are in the sample?
At a particular temperature, N2O5 decomposes according to a first-order rate law with a half-life of 3.0 s. If the initial concentration of N2O5 is 1.0 × 1016 molecules/cm3, what will be the concentration in molecules/cm3 after 11.3 s?
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