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1. If the standard solutions had unknowingly been made up tobe 0.0024 M AgNO3 and 0.0040 M K2CrO4, would this have affected your results? Why?
2. If your curvette had been dirty, how would this have affected the value of ksp?
3. Using your determined value of ksp, calculate how manymilligrams of Ag2CrO4 will desolve in 10.0 mL of H2O?
4. The experimental procedure for this experiment has you add 5mL of 0.004 M AgNO3 to 5mL of 0.0024 M K2CrO4. Is either of these reagents in excess, if so which one?
5. Use your experimentally determined value of ksp and show,by calculations, that Ag2CrO4 should precipitate when 5mL of 0.004M AgNO3 are added to 5mL of 0.0024 M K2CrO4.
7. Although Ag2CrO4 is insoluble in water, it is soluble indilute HNO3. Explain using chemical equations.
A cook wants to heat 1.75 of water from 26.0 to 100.0 If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn? Natural gas produces 49.3 of heat per gram.
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below? Change in H degrees for the reaction is +624.6 kJ. SiO2 (g) + 3C (s) -> SiC (s) + 2CO (g)
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Compare the amount of .200 moles of KOH needed to neutralize 50 mL of .200 moles of HNO3 with the amount of .200 moles of KOH needed to neutralize 50 mL of .200 moles of CH3COOH. Is the volume of KOH more, less or the same.
What current is required to produce 91.6 g of chromium metal from chromium(VI) oxide in 12.4 hours?
Assume that an air conditioner consumes 1.50 X 103 W of electrical power, and that it can be idealized as a reversible Carnot refrigerator. If the coefficient of performance of this device is 2.50, how much heat can be extracted from the house in ..
An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30°C and a pressure of 720. torr. The gas is then compressed to a volume of 25 mL, and the temperature is raised to 794.°C. What is the new pressure of the gas..
Propose the kinds of attractive forces that might bind congo red to cotton fabric.
If the concentration of bromide ion in a saturated solution in equlibrium with PbBr2 solid is determined to be .0125M what is the solubility of PbBr2
Calculating the equilibrium constant (Keq) for the given reactions - Determine the Keq for the following reactions
Explain why alcl3 has a molar heat capacity that is approximately 4 times the molar heat capacity of a metallic crystal.
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