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A) A 205 ml sample of ocean water contains 6.8g of NaCl. What is the molarity of the solution with respect to NaCl?
B) How much of a 12.0 M HNO3 solution should you use to make 850.0 ml of a 0.250M HNO3 soution?
C) How much of a 5.0 M sucrose solution should you use to make 85.0 ml of a 0.040 M solution?
A colored substance Z has an absorption maximum at 350 nm. A solution containing 2 mg of Z per liter had an absorbance of 0.850 using a 1 cm cell. The formula weight of Z is 148.
The solvent for an organic reaction is prepared by mixing 60.0 mL of acetone with 45.0 mL of ethyl acetate. This mixture is stored at 25.0C. The vapor pressure and the densities for the two pure components at 25.0C. What is the vapor pressure of t..
If 10500 L H2 gas is reacted with an excess of N2 gas at 200 atm. and 500 C, how many moles of ammonia gas would be produced, assuming a 15% yield?
Describe the preparation of 12 mL of a 0.050 M solution of each of the halogens, using the reactions in the preceding question. Available to you are solid Ca(OCl)2
A gaseous mixture of O2 and N2 contains 36.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 mmHg.
What is the equilibrium constant of the formation reaction of ammonia gas at 298.15 K under the conditions that the partial pressures
If the pressure of 50.0 mL of oxygen gas at 100 °C increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume temperature remains constant.
For the reaction above, how much would be liberated by the combustion of 5.00g of iron metal in excess oxygen.
the final product was dibenzalacetone. Calculate the theoretical yield of this reaction.
b. Would the pH increases or decreases if the solution is disturbed by adding HBr?
Determine what would the pressure be if the volume of this sample gas is decreased to 5.38 Litre also state that which law of gas is used in this process?
Calculate the amount of heat liberated (in kJ) from 417 g of mercury when it cools from 64.0°C to 12.0°C.
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