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The rate of the reaction is first order in each reactant. At the 28degrees C the rate constant for the disappearance of H2S which is having 3.5 x 10-2M-1s-1.
Determine the Standard free energy change ΔG when the equilibrium constant for the conversion of 3pg to 2pg is .165.in human blood cells, 3pg is at a concentration of 61uM and 2pg is at a con
Calculate the average thickness of the sheet when the density of gold is 19.32 g/cm^3 if a 1.35 g piece of gold is hammered into a sheet whose area is 36.4 ft^2.
Determine the kinetic energy and the speed of the electron that is emitted when a metal is irradiated with light of wavelength 700 nm and 300 nm?
Determine the number of grams of Calcium Sulfate will be formed, suppose the reaction Ca3 (PO4)2 + 3H2SO4 - 3CaSO4 + 2H3PO4 is carried out starting with the 103.0g of Ca3(PO4)2 and 75.0 g of H
Determine the number of grams of neon will have the same number of atoms as 1,000 g of bromine if an atom of bromine has a mass about four times greater than that of an atom of neon.
Explain what will be the cause of discrepancy when the experimental freezing point for cyclohexane is found to be ˜ 1°C less than its value listed which is 6.5°C.
The pure rotational microwave spectrum of HCl has absorption lines at the following wave numbers (in cm-1): 21.19, 42.37, 63.56,84.75, 105.93, 127.12, 148.31, 169.49, 190.68, 211.87, 233.06,254.24,
Write down the symbol for this ion (give the ionic charge as a right superscript and give the symbol for the nucleus). One isotope of a metallic element has mass number 58 and has 33 neutro
A sample of an unknown hydrate of manganese (II) chloride (MnCl2·nH2O) which is having 5.615 g, is heated until all the water of hydration is removed. The MnCl2 which remains has a mass of
You drop a 105 gram piece of brass which is having the density = 8.56g/cm^3 into the water. If you have a 100.0 ml graduated cylinder having 50.0 ml of water. Explain to what height does the water
Explain how much dry solute would you take to prepare each of the following solutions from the dry solvent and the solute? 115g of .100m NaNO3, 115 ml of 0.120 M NaNO3, 115g of 1.4% NaNO3
When Mg metal and a solution of an alkyl halide in ether are mixed, if the formation of a Grignard reagent does not begin spontaneously than one sometimes adds a small amount of iodine to the flask
Determine the osmotic pressure of a magnesium citrate laxative solution at 37C which is having 30.0g of magnesium citrate in 250ml of solution. Suppose the complete dissociation of the ionic compou
A house with a 2.90 m high ceiling and 1.70 x 103 m2 floor areas is to be heated with propane. Determine the number of kilograms of propane would be required to raise the temperature of th
Determine the numbers of amps are needed to plate at a rate of 1 mg/sec? Hint: The ions involved are Ag+, Zn2+, and Cu2+. An electroplated surface of Sterling Silver (92.5% w/o Ag; 7.5% w/o Cu) is to
Determine the entropy change of 1.00 mol of Ar in a rigid container when the gas is heated from 25°C to 55°C. The molar constant volume heat capacity of Argon gas is having 20.79 J mol-1K-1
Ar gas is sealed in a12.8 L rigid container at 1.00 atm, at 25°C. Calculate the entropy change of the gas, when it is heated to55°C?
Determine the pH when 5 mL of 0.5 M HCl is added to 1 L of the buffer. Explain what pH would you expect if you added the same quantity of HCl to 1 L of pure water?
Determine the number of dry solute would you take to prepare each of the following solutions from the dry solute and the solvent?
At 20 degrees C a lump of pure copper weighs 25.023g in air and 22.122g when submerged in water (D=0.9982 g/ml). Then suppose the copper is rolled into the 254 cm2 foil, of uniform thickness so
A diatomic molecule which is having μ=2.000 x 10-26 kg and a bond length of 250.0 pm is rotating about its center of mass in the xy-plane.
Analyze the magnitude of its angular momentum when l = 1 and the possible components of the angular momentum on the arbitrary axis. Exprehh results as multiple of h.
The particle is in a cubic box. Find out the degeneracy of the level that has energy 14/3 times that of the lowest level? Explain in detail.
When the gas burns, 86kg of oxygen is consumed and water and carbon dioxide are produced. An automobile gasoline tank holds 20kg of gasoline. Calculate the total combined mass of water and