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An isotonic solution will produce an osmotic pressure of 7.84 atm measured against pure water at human body temperature (37.0 °C). How many grams of sodium chloride must be dissolved in a liter of water to produce an isotonic solution?
What are the concentrations of HOAC and OAC- in a 0.2M acetate buffer pH 5.0? The Ka for acetic acid is 1.70 X 10-5 (pKa = 4.77).
A 29.0-g sample of water at 270. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
A bag of potato chips contains 595 mL of air at 30.0 degrees celcius and a pressure of 770 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 438 mL and the temperature is 8.00 celcius?
Some of the original solid remained and total pressure in container was 7.76 atms when equilibrium is reached. Calculate number of moles of H2O(g) present at equilibrium How many grams of original solid remain
ozonolysis of a followed by dimethyl sulfide reduction produces a single optically active compound c c5h8o2. reduction
what is the concentration of an naoh solution that requires 50.0 ml of a 1.25 m h2so4 solution to neutralize 78.0 ml of
A gas bottle contains 0.650 mol of gas at 730 mm Hg pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle.
Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water (H2O), and carbon dioxide (CO2). This equation is balanced as written: 2HCl(aq)+Na2Co3(aq) --- 2NaCl(aq)+H2O(I)+CO2(g)
After mixing, you filter it and find that the concentration of the filtered solution is 5ppm Cu2+. From the above scenario, calculate the mass of Cu2+ bound to the soil. Calculate the K(dis).
What is the total sample size (in grams) for a sample of magensium nitrite which contains 0.96 g of oxygen
Explain possible reason for discrepency between the actual pH of the buffer and the reported pKa of the weak acid. (My case: actual pH =9.23, reported pKa =9.25)
if kspag2so3 1.5e-14nbsp then compute the solubility of silver sulfite ag2so3 in units of grams per liter.considering
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