
7.920 g of potassium oxalate is dissolved in water to make 450.0 mL of solution. What...
How to make a 10 mL saturated potassium oxalate solution using the potassium oxalate Mw = 184.23 g mol-1 and the Solubility of potassium oxalate in water at 25°C = 360 mg mL-1
15 g of potassium chlorate are dissolved in water to produce 250 mL of solution. What is the solution's molarity?
25.00 g of potassium hydrogen phosphate (K HPO4) is dissolved in enough water to make 125.0 mL of a solution with a density of 1.22 g/mL. What is the concentration of the solution in % (m/m). % (m/v). molarity, mosM and mEq/L of the potassium ion? Note: K2HPO4 has a molar mass of 174.2g/mole. What would be the final molarity of the above solution if you were to dilute it by adding 175 mL of water?
10 mL saturated potassium oxalate , potassium oxalate Mw = 184.23 g mol-1, solubility of potassium oxalate in water at 25°C = 360. calculate the concentration a saturated solution of potassium oxalate
A 2.56 gram sample of an unknown white solid was dissolved in water, making 450.0 mL of solution. At 25 °C, the solution exhibited an osmotic pressure of 0.407 atm. What is the molar mass of the solute? What would the boiling point elevation be for this solution (again assuming molarity and molality are essentially the same in this dilute solution)? (answer should be 342 g/mol; 0.00852 °C.)
6: Suppose 50.0 g of pure potassium hydroxide is dissolved in 250.00 mL water ( Solvent: -0.9987 g/mL). Given the density of the solution is 1.020 g/mL, what will be the molarity of the solution. (Hint: You need to find the volume of the solution)
2. 25.5 g of NHCl is dissolved in enough water to make 750.0 mL of solution What is the molarity of the solution? b. How many moles of ammonium chloride are contained in 237 mL of solution? c. What volume in mL of this solution would contain 0.059 moles of ammonium chloride?
b) If 28.93 mL of a potassium permanganate solution was used to titrate 25.00 mL of a sodium oxalate solution made by dissolving 1.0423 g of sodium oxalate in 250.0 mL of deionized water, calculate the molarity of the potassium permanganate.
b) If 28.93 mL of a potassium permanganate solution was used to titrate 25.00 mL of a sodium oxalate solution made by dissolving 1.0423 g of sodium oxalate in 250.0 mL of deionized water, calculate the molarity of the potassium permanganate.
If 0.2997 g of potassium iodate (KIO3) are dissolved in 25.00 mL of distilled water, what is the resulting molarity (M)? Give a brief explanation about why this is a very precise concentration to use. In other words, what makes potassium iodate such a good reagent with which to work in lab?