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What happens when zinc, iodine and acidified water are mixed? Is there a reaction? If a reaction does take place, will the chemical and physical properties of the new substance be the same or different from iodine and zinc?
when sodium bicarbonate nahco3s is heated sodium carbonate is produced with the evolution of water vapor and carbon
Hexane and cyclohexane for an ideal solution. the vapor pressure of hexane is 151 torr and that of cyclohexane is 98 torr at 25C. calculate the vapor pressure of each of the following solutions and teh mole fraction of each of teh substance in the..
A 235mL solution is prepared with 41.8 millimoles of an unknown sodium salt of a deprotonated organic acid (NaX). If the solution has a pH of 8.05, what is the pKa of the acid?
Lactic acid, C_3H_6O_3, is found in sour milk. A solution containing 1.00 g NaC_3H_5O_3 in 100.0 mL of 0.0500 M C_3H_6O_3 has a pH = 4.11. What is Ka of lactic acid
Question- If a student reacts with 3.4g of h2o with sulfur to produce 4.6 grams of sulfur hexafluoride SF6, what is the mass in grams of sulfur if 2.01x10^22 atoms of sulfur where found at the start of the reaction
Determine the boiling point of the solution If 11.9 grams of a nonelectrolyte with molar mass = 30.5 g/mol are combined with 200.0 grams of the solvent,?
After equilibrium has been established, 5.0 mg of o-xylene is measured in the water. What is the total mass of o-xylene present in the flask
The balloon rises in the atmosphere to an altitude where the pressure is 395mmHg and the temperature is -16.3 degrees C. Assuming the balloon can freely expand, calculate the volume of the balloon at this altitude.
what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
How many grams of Na2SO4 (FM 142.02) should be added to how many grams of sulfuric acid (FM 98.08) to give 1.35 L of buffer with pH 2.80 and a total sulfur (= SO42- + HSO4- + H2SO4) concentration of 0.200 M
If a contemporary wooden chair were somehow preserved to for the next 3,900 years, what C-14 dacay rate should be expected from the wood used to make the chair? (t1/2 = 5730)
If replacing magnesium with an equal weight of sodium, how would the enthalpy of the reaction changed?
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