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Problem- Decontaminate water containing lead ions by precipitation with iodide ions. The scientist wants the final [Pb2+]=1.00Ã-10?7 M. What must the [I?] be in this solution in order to achieve this? For lead (II) iodide, Ksp=9.8Ã-10?9.
Here is the problem which I am struggling on, please help me!
To produce 856 g of ammonia gas utilizing air as your source of nitrogen gas, explain what volume of air is required if the air is introduced at 27°C and 760 mmHg. Define the mole fraction of nitrogen gas in air is 0.781
if the half reaction at an electrode is the reduction of zinc fromzinc 2 ions how many grams of zinc would be produced
Using the data shown in the table, calculate the pressure exerted by 1.00 moles of CO2 confined in a volume of 3.00 L at 450. K. Compare the pressure with that predicted by the ideal gas equation.
Determine the energy in joules of a mole of photons coupled with red light of wavelength
write the equilibrium constant expression, Kc, for each of the following reactions: a)2HBr(g) H2(g)+Br2(g). b)2BrNO(g) Br2(g) + 2NO(g). c)CH4(g)+H2O(g) CO(g)+3H2(g).
A solution containing 13.0% sodium hydroxide by mass has a density of 1.131 g/mL. Sodium hydroxide has a density of 2.130 g/mL. What volume of the solution, in liters, must be used in an application requiring 1.10 kg of sodium hydroxide
Describe the following combinations as either soluble or insoluble. 1. Sand sinks to the bottom of a beaker of water. 2.Antifreeze and water mix completely. 3. Benzene, a liquid, floats on the surface of water.
a robust first grader goes for swimming lessons three times a week and he enjoys it thoroughly. during the first week
If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein, calculate the kilocalories that each slice of cake contains.
find the mass of the sugar c6h12o6 required to produce 1.82 l of carbon dioxide gas at stp from the
Empirical and Molecular Formula of Adrenaline, Adrenaline contains 59% C, 7.1% H, 26.2% O and 7.7% N and has a molar mass of about 180 g/mol.
Magnesium hydroxide is 54.87% oxygen by mass. How much oxygen is in 114 g of the compound?
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