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When aqueous solutions of (NH4)2CrO4 and Ba(NO3 )2 are combined, BaCrO4 precipitates. Calculate the mass, in grams, of the BaCrO4 produced when 3.02 mL of 0.149 M Ba(NO3 )2 and 4.06 mL of 0.616 M (NH4)2CrO4 are mixed. Calculate the mass to 3 significant figures.
How many mL of 2.71 M HI will be needed to neutralize 183 mL of 4.71 M Mg(OH)2.
You need to prepare 410 ml of 0.67 M HI. You have a 11.9 M stock solution of hydroiodic acid. How many mL of the stock solution will you need?
How many moles of Ag+ ions are present in 41.1 mL of a 0.621 M Ag2SO4 solution?
Calculate the molarity (M) of a solution prepared by dissolving 14.7 g of HI in enough water to make 2.45 L of solution.
The molar enthalpy of vaporization of carbon disulfide is 26.74 kJ/mol, and its normal boiling point is 46°C. What is the vapor pressure of CS2 at 0°C
How many grams of F2 are needed to produce 157 g of PF3 if the reaction has a 79.8% yield?
The 14C-Labeled glyceraldehyde 3-phosphate was added to a yeast extract. After a short time, fructose 1,6-biphosphate labeled with 14C at C-3 and C-4 was isolated. Explain what was the location of the 14C label on the starting glyceraldehyde 3-pho..
Beakers 1 through 4 contain 2.3, 1.91, 5.985, and 0.52 g of dry potassium nitrate respectively. How many moles of potassium nitrate were recovered after the water evaporated
The gas sample is cooled to a temperature of -7.13 °C (assume pressure and amount of gas are held constant).
Use data from appendix iib in the textbook to calculate the equilibrium constants at 25 degrees Celsius for each of the following reactions:
A) What pressure would it take to compress 150. L of helium gas initially at 1.00 atm into a 2.00 L tank at constant temperature?Express your answer with the appropriate units.
How many grams of sodium lactate should be added to 1.00 L of 0.150 lactic acid ( or ) to form a buffer solution with = 4.10? Assume that no volume change occurs when the sodium lactate is added.
A buffer is prepared by mixing 295 mL of 0.210 M HCl with 584 mL of 0.559 M ammonia (NH3). Given that the Kb of NH3 is 1.8 x 10-5, calculate the pH of the solution.
a student placed 15.0 g of glucose c6h1206 in a volumetric flask added enough water to dissolve the glucose by swirling
What levels should be given? Should growth hormone be administered to non-GH-deficient people? Why or why not?
In some industrial processes, sulfite is added to remove dissolved O2 to prevent corrosion of pipes. Write the balanced overall chemical reaction for reduction of dissolved O2 by sulfite (SO32-).
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