If 3.000 grams of Kl (Potassium Iodide) were dissolved in 100mL of water, what would the molarity of KI be if the glassware used to make the solution was a beaker? A volumetric flask?
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If 3.000 grams of Kl (Potassium Iodide) were dissolved in 100mL of water, what would the...
6.52 grams of sodium hydrogen carbonate is weighed into a 150 ml beaker and dissolved in 100 ml of deionized water. The solution is then quantitatively transfer to a 250.0 mL volumetric flask and filled to the line with deionized water. What is the molarity of hydrogen carbonate in the volumetric flask?
How would you prepare a 50mL buffer at pH = 8.90 given the following materials: 100mL volumetric flask, 100mL beaker, an unlimited supply of deionized water, 1.0M NH3, 0.50M NH4Cl, 0.15M CH3COOH, 0.10M NaOH, 0.10M HCl, a stir bar, a calibrated pH probe, a burette and a lab quest. include relevant volumes/masses, type of glassware used, significant figures and units.
Suppose that you have a 8.58 mass % solution of potassium iodide, KI, in water. What mass of solution in grams contains 10.0 g of KI? watch for sig figs
The theoretical heat of solution of potassium iodide, KI, is 20.33 kJ/mol. When 1 mole of Kl is dissolved in water the resulting solution: heats up cools down remains at the same temperature
2. How many grams of potassium iodide are needed to make 125 mL of a 1.28 M KI solution? (1.5)
7.920 g of potassium oxalate is dissolved in water to make 450.0 mL of solution. What is the molarity of the potassium oxalate solution ?
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?
A student weighs out 14.6 g of AlBrz, transfers it to a 300 mL volumetric flask, adds enough water to dissolve the solid and then adds water to the 300 mL mark on the neck of the flask. Calculate the concentration (in molarity units) of aluminum bromide in the resulting solution? Calculate the mass, in grams of sodium iodide that must be added to a 250 mL volumetric flask in order to prepare 250 mL of a 0.138 M aqueous...
Consider 125 grams of potassium carbonate dissolved in water to make 775 mL of solution. Identify the correct concentrations for the species below. Consider 125 grams of potassium carbonate dissolved in water to make 775 mL of solution. Identify the correct concentrations for the species below. Concentration (in M) of carbonate ions Answer 1 Choose...(2.34) (0.00234) (0.585) (1.17) (0.00117) (3.51) Concentration (in M) of potassium ions Answer 2 Choose...(2.34) (0.00234) (0.585) (1.17) (0.00117) (3.51) Concentration (in M) of potassium carbonate...
In the laboratory, a student adds 19.3 g of potassium acetate to a 125 mL volumetric flask and adds water to the mark on the neck of the flask. Calculate the concentration in mol/L) of potassium acetate, the potassium ion and the acetate ion in the solution [KCH3COO) - [K] [CH3C00] = 1 A student wishes to prepare 300-ml of a 0.236 M iron(III) acetate solution using solid iron(III) acetate, a 300-ml volumetric flask, and deionized water (a) How many...