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You have weighed out 1.75g of sucrose and dissolved it in a final...
Experimental sucrose solution (final concentration) 30% 15% Amount of 30% stock sucrose solution needed 5 mL...
Experimental sucrose solution (final concentration) 30% 15% Amount of 30% stock sucrose solution needed 5 mL 2.5 mL 0.5 mL Amount of water needed O mL 2.5 mL 4.5 mL 3% 12. Make an additional 200 mL of 15% sucrose solution in Beaker 1 by mixing the 30% stock solution with water. Use the following dilution equation to solve for the necessary amount of stock solution MV, = M2V2 Where: • V1 = Needed volume of stock solution M =...
4. How much sucrose should be weighed out to prepare 80 ml of a 1. 0...
4. How much sucrose should be weighed out to prepare 80 ml of a 1. 0 M solution? A student weighs out the correct amount of sucrose, places it in a beaker, measures 80 ml of dH2O with a graduated cylinder and adds the dH2O to the beaker. The solution is mixed until all the sucrose is dissolved. What did the student do wrong? If the final volume of the solution prepared was 95 ml, what is the actual molarity...
A chemistry student must write down in her lab notebook the concentration of a solution of...
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...
A chemistry student must write down in her lab notebook the concentration of a solution of...
A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. The concentration ofa 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: empty weight: 3.25g She put some solid sodium thiosulfate into the graduated cylinder and weighed it. With the sodium thiosulfate added, the cylinder weighed 76.373 g. She added water to...
solution of potassium chloride. The concentration of a solution equals the mass A chemistry student must...
solution of potassium chloride. The concentration of a solution equals the mass A chemistry student must write down in her lab notebook the concentration of 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: empty weight: 3.250 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 29.91 g. ....
A chemistry student must write down in her lab notebook the concentration of a solution of...
A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. 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: empty weight: 6.200 g She put some solid sodium thiosulfate into the graduated cylinder and weighed it with the sodium thiosulfate added, the cylinder weighed 91.06 g. ....
Ity Help Page Student Help A weighed amount of sodium chloride is completely dissolved in a...
Ity Help Page Student Help A weighed amount of sodium chloride is completely dissolved in a measured volume of 4.00 M ammonia solution at ice temperature, and carbon dioxide is bubbled in. Assume that sodium bicarbonate is formed until the limiting reagent is entirely used up. The solubility of sodium bicarbonate in water at ice temperature is 0.75 mol per liter. Also assume that all the sodium bicarbonate precipitated is collected and converted quantitatively to sodium carbonate The mass of...
A chemistry student must write down in her lab notebook the concentration of a solution of...
A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. 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: empty weight: 3.250 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 29.91 %...
A student weighed out 0.438 g anthracene and dissolved it in 5.14 mL xylene. They then...
A student weighed out 0.438 g anthracene and dissolved it in 5.14 mL xylene. They then added 0.269 g maleic an hydride, fit the flask with a reflux condenser and let the reaction reflux for 30.9 min. They isolated 0.582 g of product crystals. What was their percent yield? Type your answer rounded to the first decimal place (ex NN.N) without units or a percent sign.
A student weighed out 0.429 g anthracene and dissolved it in 5.27 ml xylene. They then...
A student weighed out 0.429 g anthracene and dissolved it in 5.27 ml xylene. They then added 0.213 g maleic anhydride, fit the flask with a reflux condenser and let the reaction reflux for 27.4 min. They isolated 0.534 g of product crystals. What was their percent yield? Type your answer rounded to the first decimal place (ex NN.N) without units or a percent sign.
Experimental sucrose solution (final concentration) 30% 15% Amount of 30% stock sucrose solution needed 5 mL 2.5 mL 0.5 mL Amount of water needed O mL 2.5 mL 4.5 mL 3% 12. Make an additional 200 mL of 15% sucrose solution in Beaker 1 by mixing the 30% stock solution with water. Use the following dilution equation to solve for the necessary amount of stock solution MV, = M2V2 Where: • V1 = Needed volume of stock solution M =...
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...
A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. The concentration ofa 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: empty weight: 3.25g She put some solid sodium thiosulfate into the graduated cylinder and weighed it. With the sodium thiosulfate added, the cylinder weighed 76.373 g. She added water to...
solution of potassium chloride. The concentration of a solution equals the mass A chemistry student must write down in her lab notebook the concentration of 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: empty weight: 3.250 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 29.91 g. ....
A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. 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: empty weight: 6.200 g She put some solid sodium thiosulfate into the graduated cylinder and weighed it with the sodium thiosulfate added, the cylinder weighed 91.06 g. ....
Ity Help Page Student Help A weighed amount of sodium chloride is completely dissolved in a measured volume of 4.00 M ammonia solution at ice temperature, and carbon dioxide is bubbled in. Assume that sodium bicarbonate is formed until the limiting reagent is entirely used up. The solubility of sodium bicarbonate in water at ice temperature is 0.75 mol per liter. Also assume that all the sodium bicarbonate precipitated is collected and converted quantitatively to sodium carbonate The mass of...
A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. 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: empty weight: 3.250 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 29.91 %...
A student weighed out 0.438 g anthracene and dissolved it in 5.14 mL xylene. They then added 0.269 g maleic an hydride, fit the flask with a reflux condenser and let the reaction reflux for 30.9 min. They isolated 0.582 g of product crystals. What was their percent yield? Type your answer rounded to the first decimal place (ex NN.N) without units or a percent sign.
A student weighed out 0.429 g anthracene and dissolved it in 5.27 ml xylene. They then added 0.213 g maleic anhydride, fit the flask with a reflux condenser and let the reaction reflux for 27.4 min. They isolated 0.534 g of product crystals. What was their percent yield? Type your answer rounded to the first decimal place (ex NN.N) without units or a percent sign.
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