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The reaction x = y is first-order overall and first-order with respect to the reactant x. The result of doubling the inital concentration of x will be to? a) shroten the half-life of the reaction b) increase the rate of constant of the reaction c) decrease the rate constant of the reaction D) Shorten the time taken to reach equilibrium e) double the initial rate
differentiate acids from compounds that contains hydrogen and an anion, or oxyanions and are not acids
HF is a stronger acid than HBR because F has greater electronegativity than Br 2) the acid (HA) strength will increase when the H-A bond strength increases
How many grams of O2 will dissolve in 1.75L of H2O that is in contact with air where partial pressure of O2 is 0.209atm?
E was found to be -2,000.00 kJ/mol of an unknown liquid hydrocarbon at 298 K. In another experiment it was determined that for each mole of hydrocarbon, 5 moles of oxygen gas are consumed
the combustion of how many moles of ethane would be required to heat
You have samples of approximately 8mL solution with ph ranging from 4 to 10. Calculate the volume of 1M HCIO4 needed to lower the ph to 2.5.
If a sample of sodium is dropped into a container of water the reaction is:
Calculate the theoretical yield of C_2H_5Cl when 127 g of C_2H_6 reacts with 250 g of Cl_2, assuming that C_2H_6 and Cl_2 react only to form C_2H_5Cl and HCl.
Suppose 532 mL of neon gas at 20C and 1.04 atmospheres and 376 mL of SF6 gas at 20C and 0.97 atmospheres are put into a 275-mL flask. If the temperature remains constant, calculate the partial pressure, in atmospheres, of the SF6 gas in the mixtur..
A solution is prepared by adding 1.10 g of solid NaCl to 50.0 mL of 0.100 M CaCl_2. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.
Compare the numbers you have just calculated with the vapour pressures of water at these temperatures. Can you suggest a reason why the two sets of numbers are so different?
A 50.00 ml sample of water was treated as above and the I2 titrated with 0.01136 M Na2S2O3, of which 8.11 ml were required to reach the end point. Determine the concentration of the dissolved O2 in M (moles/L) and ppm (mg/L).
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