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If I were to take a 1 kg block of ice whose temperature was -30 C and drop it into a container holding 2 kg of water at 80 C, could you predict ahead of time what the final temperature would be? How would you perform the calculation?
What is the concentration of Cu^2+ in the other half-cell? (Assume the concentration in the unknown cell to be the lower of the two concentrations.
a 93.7 g 5.20 mole sample of water is heated to exactly 94.4 celsius. it is then added to 90.1 g 5.00 mole of water at
An aluminum foil package contains 75 square feet of foil that weighs 12 ounces. Aluminum has a density of 2.70 g/cm^3. What is the approx thickness of the foil in mm
What is the molar concentration of chloride ion in the final solution? (assuming complete dissociation) 2) What is the percentage yield if 122.5 mg of a light blue-green solid is collected after 100.00 mL of this solution is combined with 25.0 mL ..
The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 28.0 mV at 25 °C. Calculate the concentration of the Zn2
A buffer solution contains 0.420 M NaHSO3 and 0.378 M Na2SO3. If 0.0235 moles of potassium hydroxide are added to 150 ml of this buffer, what is the pH of the resulting solution
78 ml of 2.5 m phosphoric acid is neutralized with 500 ml of potassium hydroxide. what is the concentration of the
you are given a stock solution of edta at a concentration of 5mm how would you dilution of edta with a final
Specific rotation of α and β -D-glucose - Determine the percentage of each anomer at equilibrium.
Calculate the number of moles of solute present in eahc other following solutions: a) 60.0g of an aqueous solution that is 1.25 percent KI by mass, b) 250g of an aqueous solution that is 0.460 percent NaCl by mass, c) 0.600L of 1.25M H2SO4.
a metal container holding xenon gas xe has a pressure of 458 torr at 20 degrees celcius. at what temperature will the
the degradation of limestone by acidic rainwater follows 1st order kinetics with a t12 of 4500 days. calculate the
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