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a) Calculate the molar concentration of a solution prepared bydissolving 2.34 g of sodium sulfate (MW = 142) in enough waterto make 250 ml of solution.
b)Calculate the ionic strength in a solution of Sodium Sulfate inpart a.
A mixture of O2, CO2, and N2 has a total pressure of 762. torr. In this mixture the partial pressure of O2 is 112. torr and the partial pressure of CO2 is 185. torr. What is the partial pressure of the N2 (in torr)?
In the reaction below, 4.86 atm each of H2 and Cl2 were placed into a 1.00 L flask and allowed to react: H2(g) + Cl2(g) 2 HCl(g) Given that Kc = 89.9, calculate the equilibrium pressure of HCl.
calculate the molality of this solution (in mol solute/kg solvent).
Which of the following is not the correct chemical formula for the compound named?
Which compound is most likely to dissociate and give O2(g) at 25?C?
For the reaction:-2 HCl + Na2CO3 - 2 NaCl + H2O + CO2 ,179.2 liters of CO2 is collected at STP.
What is the estimated quantity of energy released in the combustion of methanol?
Consider the reaction CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced
Calcium phosphate, silicon dioxide, and coke may be heated together in an electric furnace to produce phosphorus, as shown in the following equation: 2Ca3(Po4)2+6SiO2+10C=6CaSiO3+10CO +P4
How many grams of oxygen reacted with the phosphorus?
Calculate the number of moles of solute present in 50.0mg of aqueous solution that is 1.25 molality NaCl.
How much of a 6.0 M sucrose solution should be used to make 79.0 mL of a 0.055 M solution.
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