CHM 010 Virtual Lab Study of Elements, Compounds and Mixtures Watch the following video on the separation of sodium chloride and sand. to an external site. https://www.youtube.com/watch?v=dwsKpY70iTALinks Describe the process of separating the salt from the sand on the report page and answer the associated questions. Classify the original combination of the salt and sand as an element, compound, homogeneous mixture or heterogeneous mixture. Part 2: Separation of Table Salt (sodium chloride) and Sand 1. Describe the initial combination of the salt and sand as a homogeneous mixture or a heterogeneous mixture. 2. What happens when water is added to this mixture? 3. What material is left on the filter paper? 4. Describe the substance left in the beaker after the water is evaporated.

CHM 010 Virtual Lab Study of Elements, Compounds and Mixtures Watch the following video on the separation of sodium chloride and sand. to an external site. https://www.youtube.com/watch?v=dwsKpY70iTALinks Describe the process of separating the salt from the sand on the report page and answer the associated questions. Classify the original combination of the salt and sand as an element, compound, homogeneous mixture or heterogeneous mixture. Part 2: Separation of Table Salt (sodium chloride) and Sand 1. Describe the initial combination of the salt and sand as a homogeneous mixture or a heterogeneous mixture. 2. What happens when water is added to this mixture? 3. What material is left on the filter paper? 4. Describe the substance left in the beaker after the water is evaporated.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter1: Matter And Measurements

Section: Chapter Questions

Problem 54QAP: Potassium sulfate has a solubility of 15 g/ 100 g water at 40C. A solution is prepared by adding...

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A solution made by dissolving sugar in water is homogeneous because the composition is the same everywhere. But if you could look with very high magnification, you would see locations with water particles and other locations with particles of sugar. How can we say that a sugar solution is homogenous?
Potassium sulfate has a solubility of 15 g/ 100 g water at 40C. A solution is prepared by adding 39.0 g of potassium sulfate to 225 g of water, carefully heating the solution, and cooling it to 40C. A homogeneous solution is obtained. Is this solution saturated, unsaturated, or supersaturated? The beaker is shaken, and precipitation occurs. How many grams of potassium sulfate would you expect to crystallize out?
on x grat/tools/assessment/items/c491a454-a244-4cee-960d-e251a9ddd12a/assignments/5334272?redirectBackToOnClose=true&emptyReading Tab=true&ngasettin Resources A solution of CaCl, in water forms a mixture that is 32.5% calcium chloride by mass. If the total mass of the mixture is 198.3 g, what masses of CaCl, and water were used? mass of CaCl,: g mass of water: NEKT
wu.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr/J8P3)H-lQUHIQg6bJxmeSyVpHOEB1plef9xyC5Ca9QldFNDUsAt.. Tp O STATES OF MATTER 三D Calculating volume percent composition 0/5 A chemist prepares a mixture of ethanol and water at a temperature of 23.0 °C. He measures out 38.5 mL of ethanol and mixes it with 38.2 mL. He measures the volume of the solution after it is well mixed and finds that it is 73.6 mL. The density of ethanol is 079 g/mL and the density of water is 1.0 g/mL. Calculate the volume percent of ethanol in this solution. Be sure your answer has the right number of significant digits. db %(v/) 10 Ar Explanation Check 2022 MGraw Hill LLC All Rights Resurved Terms of Use Prvacy Center Accessibility 9:21 FM 378 /2022 DELL Esc F2 FS F6 F7 FB F10 F11 PrtScr Delete PgUp (PgDn F12 Insert Home End 23 $4 & Num Lock Backspace 7 E R Y P. G K Enter 5 *00
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150 to 140 130 120 110 100 NaNO 90 80 70 60 50 KCI Naci 40 30 20 KCIÓ 10 Cez(so) O 10 20 30 40 50 60 70 80 90 100 Tomperature ('C) 35 grams of potassium chlorate are dissolved in 100 grams of water. The solution is heated until all of the solid dissolves, and then cooled to 40°C. How many grams of potassium chlorate precipitate out? 20 grams 35 grams 15 grams O none FON NH Grams of solute
On the molecular level, what does it mean for a solid sample to be pure?
150 140 130 120 110 100 NaNO3 90 80 70 60 NH&C KCI Naci 50 40 30 20 KCIO3. 10 Cez(SOA)3 0 10 20 30 40 50 60 70 80 90 100 Temperature ('C) EONX NH37 Grams of solute
Give an example of a mixture in which solute is solid and solvent is liquid.
(When answering this problem, report the answer with the appropriate number of significant figures. When entering units, use proper abbreviated units with proper capitalization.)A beverage drink mix sample is prepared by mixing a packet of beverage powder in a gallon (3.78 L) of water. A sample for analysis is prepared by diluting 10.00 mL of this solution in a 50.0 mL volumetric flask. When measured using a colorimeter, this diluted solution has an absorbance of (3.49x10^-1). The calibration curve for the experiment yielded a linear fit of y = 21655x+(1.7950x10^-2) and an R2 value of 0.9911. Determine the molar concentration of food dye in the analyzed sample. Hint: The answer is assumed to be reduced to the highest power possible.
(When answering this problem, report the answer with the appropriate number of significant figures. When entering units, use proper abbreviated units with proper capitalization.)A beverage drink mix sample is prepared by mixing a packet of beverage powder in a gallon (3.78 L) of water. A sample for analysis is prepared by diluting 10.00 mL of this solution in a 50.0 mL volumetric flask. A student calculates that the concentration of dye in the analyzed beverage mix solution is (2.59x10^-5) mol/L. Determine the mass (in grams) of food dye in the beverage mix packet. Hint: The answer is assumed to be reduced to the highest power possible.
II. BOILING POINT ELEVATION: The temperature of a boiling 50 mL of distilled water in an Erlenmeyer flask with a small flame was taken to be 98°C. The bulb of the thermometer must not touch the bottom or sides of the Erlenmeyer flask. In another Erlenmeyer flask, 2.83 grams of urea is dissolved in 10 grams of distilled water. The solution was let to boil gently and its boiling point was recorded to be 101°C. DATA AND RESULTS: (Show all pertinent computations on the space provided if applicable. Answers with no computation will not be considered.) Mass of urea in grams Mass of water in grams Boiling point of distilled water in degrees Celsius Boiling point of urea solution in degrees Celsius Molecular weight of urea in g/mol (experimental) Molecular weight of urea in g/mol (calculated) Percent Error of Molecular weights of urea Change in boiling point SOLUTION/S: