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3. (12 pts) The following questions are modeled from the density of Sucrose Lab. A student...
Q12. Determine the mass (in g) of each sucrose solution that contains 19 g of sucrose....
Q12. Determine the mass (in g) of each sucrose solution that contains 19 g of sucrose. part A 4.5 % sucrose by mass part B 2.7 % sucrose by mass part C 13.3 % sucrose by mass Q.13 The percent concentration of a solution is a ratio of the amounts of dissolved solute and solution, expressed as a percentage. The percent concentration of a solution can be written generally as %concentration=amountofsoluteamountofsolution×100% A mass percent concentration may be calculated for mass/mass...
Chemistry 2A Lab 13: Solution Calculations Introduction This lab involves sample calculations using various concentration units....
Chemistry 2A Lab 13: Solution Calculations Introduction This lab involves sample calculations using various concentration units. This lab will work with the following types of concentration units: % mass, % volume, % mass/volume, and molarity. A solution is the sum total of the solute and solvent. % mass= mass solute mass solution -100 volumesolute .100 % volume- volume solution % mass/volume mass solute volumesolution -100 Molarity moles solute liters solution The dilution of a liquid requires the addition of more...
2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities: 1.30...
2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities: 1.30 g/mL, 1.35 g/mL, 1.32 g/mL, 1.23 g/mL, 1.13 g/mL, and 1.39 g/mL. a. Calculate the average density of chloroform from his data. b. If the accepted density of chloroform is 1.48 g/mL, calculate the percent error. C. Was Riley's data accurate? Was the data precise? Explain your reasoning. Experiment 1: Determination of the Density of Water and nft page 14 3. For each of...
Post Lab #1 A student was assigned the task of determining the molar mass of an unknown gas. The student measured t...
Post Lab #1 A student was assigned the task of determining the molar mass of an unknown gas. The student measured the mass of a sealed 843 mL rigid flask that contained dry air. The student then flushed the flask with the unknown gas, resealed it, and measured the mass again. Both the air and the unknown gas were at 23.0°C and 750. torr. The data for the experiment are shown in the table below. Volume of sealed flask 843...
How many grams of CaCl2 are needed to make 610.3 g of a solution that is...
How many grams of CaCl2 are needed to make 610.3 g of a solution that is 36.5% (mm) calcium chloride in water? Note that mass is not technically the same thing as weight, but (m/m) has the same meaning as (w/w). Number g Cac How many grams of water are needed to make this solution? Number b) What is the volume percent % v/ alcohol in 739 mL of water? (Assume that volumes are additive.) of an alcohol solution made...
4. A student determines the density of a solid with a pycnometer (see the Sample Report...
4. A student determines the density of a solid with a pycnometer (see the Sample Report in Chapter I of your text) at 25.0 °C. The weight of the empty, dry pycnometer is 6.2330 g. Some of the solid material is introduced; the weight of the pycnometer plus solid is 39.4156 g. Water (density p 0.997048 g cm-3 at 25.0 °C) is added to fill all space not occupied by the solid; the weight of the pycnometer plus solid plus...
Part A What mass of sucrose (C12H22011) should be combined with 501 g of water to...
Part A What mass of sucrose (C12H22011) should be combined with 501 g of water to make a solution with an osmotic pressure of 8.55 atm at 300 K ? (Assume the density of the solution to be equal to the density of the solvent.) IVO A ¢ A A O 2 ? Submit Previous Answers Request Answer X Incorrect; Try Again The volume of the solution, in liters, should be included in the calculation. The osmotic pressure, II, is...
Please do 2,3 and 4 Experiment 3 Pr 1. A student weigh be 98.595 oth mark,...
Please do 2,3 and 4
Experiment 3 Pr 1. A student weigh be 98.595 oth mark, the stoppered flask is weighed again and the mass is found to be 204.274 & ment s an empty 100 mL. volumetric flask and stopper and finds the mass to g After adding 4.163 g of sugar to the flask, dissolving it, and filling the flask Calculate the density of this solution dm oS 629 2. Explain how to properly prepare a solution in...
How many grams of CaCl2 are needed to make 853.6 g of a solution that is...
How many grams of CaCl2 are needed to make 853.6 g of a solution that is 31.0% (m/m) calcium chloride in water? Note that mass is not technically the same thing as weight, but (m/m) has the same meaning as (w/w). How many grams of water are needed to make this solution? What is the volume percent % (v/v) of an alcohol solution made by dissolving 109 mL of isopropyl alcohol in 741 mL of water? (Assume that volume are...
at 15.0°C 20.0°C, 22.0°C, 25.0°C, Post-Laboratory Questions 1. Write down the values for the density of...
at 15.0°C 20.0°C, 22.0°C, 25.0°C, Post-Laboratory Questions 1. Write down the values for the density of water at 15.0°C, 20. and 28.0°C. a. Compare the values of the density of water at the above temp temperature affect density? If so, state how. Explain your rease Fat the above temperatures. Does b. Would temperature be a significant source of error for this experiment? Explain your reasoning. 2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities:...
Chemistry 2A Lab 13: Solution Calculations Introduction This lab involves sample calculations using various concentration units. This lab will work with the following types of concentration units: % mass, % volume, % mass/volume, and molarity. A solution is the sum total of the solute and solvent. % mass= mass solute mass solution -100 volumesolute .100 % volume- volume solution % mass/volume mass solute volumesolution -100 Molarity moles solute liters solution The dilution of a liquid requires the addition of more...
2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities: 1.30 g/mL, 1.35 g/mL, 1.32 g/mL, 1.23 g/mL, 1.13 g/mL, and 1.39 g/mL. a. Calculate the average density of chloroform from his data. b. If the accepted density of chloroform is 1.48 g/mL, calculate the percent error. C. Was Riley's data accurate? Was the data precise? Explain your reasoning. Experiment 1: Determination of the Density of Water and nft page 14 3. For each of...
Post Lab #1 A student was assigned the task of determining the molar mass of an unknown gas. The student measured the mass of a sealed 843 mL rigid flask that contained dry air. The student then flushed the flask with the unknown gas, resealed it, and measured the mass again. Both the air and the unknown gas were at 23.0°C and 750. torr. The data for the experiment are shown in the table below. Volume of sealed flask 843...
How many grams of CaCl2 are needed to make 610.3 g of a solution that is 36.5% (mm) calcium chloride in water? Note that mass is not technically the same thing as weight, but (m/m) has the same meaning as (w/w). Number g Cac How many grams of water are needed to make this solution? Number b) What is the volume percent % v/ alcohol in 739 mL of water? (Assume that volumes are additive.) of an alcohol solution made...
4. A student determines the density of a solid with a pycnometer (see the Sample Report in Chapter I of your text) at 25.0 °C. The weight of the empty, dry pycnometer is 6.2330 g. Some of the solid material is introduced; the weight of the pycnometer plus solid is 39.4156 g. Water (density p 0.997048 g cm-3 at 25.0 °C) is added to fill all space not occupied by the solid; the weight of the pycnometer plus solid plus...
Part A What mass of sucrose (C12H22011) should be combined with 501 g of water to make a solution with an osmotic pressure of 8.55 atm at 300 K ? (Assume the density of the solution to be equal to the density of the solvent.) IVO A ¢ A A O 2 ? Submit Previous Answers Request Answer X Incorrect; Try Again The volume of the solution, in liters, should be included in the calculation. The osmotic pressure, II, is...
Please do 2,3 and 4
Experiment 3 Pr 1. A student weigh be 98.595 oth mark, the stoppered flask is weighed again and the mass is found to be 204.274 & ment s an empty 100 mL. volumetric flask and stopper and finds the mass to g After adding 4.163 g of sugar to the flask, dissolving it, and filling the flask Calculate the density of this solution dm oS 629 2. Explain how to properly prepare a solution in...
How many grams of CaCl2 are needed to make 853.6 g of a solution that is 31.0% (m/m) calcium chloride in water? Note that mass is not technically the same thing as weight, but (m/m) has the same meaning as (w/w). How many grams of water are needed to make this solution? What is the volume percent % (v/v) of an alcohol solution made by dissolving 109 mL of isopropyl alcohol in 741 mL of water? (Assume that volume are...
at 15.0°C 20.0°C, 22.0°C, 25.0°C, Post-Laboratory Questions 1. Write down the values for the density of water at 15.0°C, 20. and 28.0°C. a. Compare the values of the density of water at the above temp temperature affect density? If so, state how. Explain your rease Fat the above temperatures. Does b. Would temperature be a significant source of error for this experiment? Explain your reasoning. 2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities:...
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