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DIRECTIONS: There are 6 questions needed to be answered & the responses for each question must be AT LEAST 100 WORDS OR MORE
What is the ph change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.130 M with no change in volume
a solution containing 0.5000 moles of acetic acid per liter to 400.0 mL of 0.3000 M NaOH. What is the final pH? The Ka of acetic acid is 1.77*10-5.
an industrial process makes calcium oxide by decomposing calcium carbonate. which of the following is not needed to
What mass of sucrose should be combined with 479 of water to make a solution with an osmotic pressure of 8.00 at 315 ? (Assume the density of the solution to be equal to the density of the solvent.)
Define when 5.00 mol of benzene is vaporized at a constant pressure of 1.00 atm as well as at its normal boiling point of 80.1°C, 169.5 kJ are absorbed and PV for the vaporization process is equal to 14.5 kJ then E = kJ and H = kJ.
identify the incorrect names of formulas.
Number of unpaired electrons in the nitrogen atom
A 24 L sample of a gas at fixed mass and constant temperature exerts a pressure of 3.0 atm. What pressure will the gas exert if the volume is changed to 16 L?
Predict the products of the acid-base reaction between acetic acid and methanamine. Draw the molecules or ions and include charges were needed.
A 10.131 g aliquot of this solution is then titrated with 0.1047 M HCl. It required 29.21 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.
A 68-kg person exposed to thorium-234 receives 5.0x10^4 B particles, each with an energy of 3.0x10^-14 J. How many rads does the person receive?
has a volume of 58.0L and a pressure of 645mmHg. What is the temperature, in kelvins and degrees Celsius, of the gas?
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