After performing the lab, a student determines that the hydroxide concentration in their assigned metal hydroxide is 2.38x10-5. Calculate the pH of this solution.
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After performing the lab, a student determines that the hydroxide concentration in their assigned metal hydroxide...
Ana lab a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 46.675 g volume of water in cylinder before object submersed: 29.79 mL volume of...
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 42.231 g volume of water in cylinder before object submersed: 28.01 mL volume of water + object in cylinder: 34.39 mL Calculate the density of the object. d = g/mL Based on the recorded volume data, and assuming that the student...
1. A student is performing a titration in lab. A sample of phosphoric acid with a volume of 12.05 mL requires 33.21 mL of 0.173 M potassium hydroxide to reach the equivalence point. a. Write the balanced equation for this reaction, including phase labels. b. What is the concentration of the phosphoric acid?
A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: The label on the graduated cylinder says: She put some solid sodium hydroxide into the graduated cylinder and weighed it. With the sodium hydroxide added, the cylinder weighed 13.195 g. She added water to the graduated...
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 44.701 g volume of water in cylinder before object submersed: 29.47 ml volume of water + object in cylinder: 35.33 mL Calculate the density of the object. d= g/mL Based on the recorded volume data, and assuming that the student used...
6. a. In a lab project, a student obtained a highly turbid acidic solution whose concentration has to be determined. Write one method by which he can determine the concentration. Give reason for your answer. (2 marks) b. A chlorophyll sample contains Mg2+ ions. Describe in brief the sequential steps to determine the concentration of the metal ion in the sample using a simple titration. Which medium is suitable for performing the titration, acidic or basic medium and why? (3...
What is the concentration of M2+ in a saturated solution of a metal hydroxide M(OH)2 (assume Ksp = 1.8 x 10-16) in an aqueous buffer of pH = 8.3? -The answer I got was 4.5e-5 M. Just wanted to confirm this was correct, thank you!
A student determines the iron(III) content of a solution by first precipitating it as iron(III) hydroxide, and then decomposing the hydroxide to iron(III) oxide by heating. How many grams of iron(III) oxide should the student obtain if his solution contains 47.0 mL of 0.417 M iron(III) nitrate?
A student determines the chromium(II) content of a solution by first precipitating it as chromium(II) hydroxide, and then decomposing the hydroxide to chromium(II) oxide by heating. How many grams of chromium(II) oxide should the student obtain if his solution contains 36.0 mL of 0.507 M chromium(II) nitrate?
A student determines the iron(II) content of a solution by first precipitating it as iron(II) hydroxide, and then decomposing the hydroxide to iron(II)oxide by heating. How many grams of iron(II) oxide should the student obtain if his solution contains 31.0 mL of 0.590 M iron(II) nitrate? g ed Submit Answer Retry Entire Group 2 more group attempts remaining