Your 50 mL beaker has a mass of 5.85 g. You add 10.00 mL to the 50 mL beaker and now the total mass is 16.05 g. You originally used 5.29 g of NaCl to make the solution. What is the percent composition of your solution?

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Q: How many grams of sucrose are needed to make 915 mL of a 32.0% (w/v) sucrose solution? mass:   g…

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Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: Given : Mass of water in swimming pool = 8.45 X 104 gallons  Mass percent of chlorine = 6.00 %  And…

Q: student is asked to make up a 16% sodium chloride solution. She makes the solution by weighing an…

A: Given that: Mass of the beaker = 98.56 g Mass of the beaker and sodium chloride = 114.71 g Mass of…

Q: 1. them. 3.2 CHEMISTRY HOLIDAY WORK 2022 Nalubula is investigating changes in mass of substances…

A: Mass of Zinc metal = 100 g  Mass of sulfuric acid = 200 g

Q: Consider the following: you mix 9.90 mL of CHC13 (d = 1.492 g/mL) and 5.20 mL of CHBr3 (d = 2.890…

A: total volume = 9.90 + 5.20= 15.10 mL mass of CHCl3 = 1.492 x 9.90 = 14.77 g mass of CHBr3 = 2.890 x…

Q: The distance from San Francisco to Los Angeles is approximately 385 miles. You and your friends…

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Q: A 0.660 ? aqueous solution of KBr has a total mass of 77.0 g. What masses of solute and solvent are…

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Q: Does it make a difference if you use a volumetric flask vs a beaker vs a graduated cylinder to make…

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Q: A solution is labeled "(1.810x10^1) % sucrose by mass". If an experiment requires (7.79x10^1) g of…

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Q: What is the mass % of ethylene glycol in a 2.61 M solution of ethylene glycol (MM = 62.07 g/mol) in…

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Q: A doctor has ordered that a patient be given 3.00 g of glucose, which is available in a…

A: A numerical problem based on unit conversion, which is to be accomplished.

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A: Answer is given below

Q: A chemist prepares a solution of barium acetate  BaCH3CO22  by measuring out  27.μmol  of barium…

A: Given: No of moles of Barium acetate = 27μmol Volume of acetate solution = 250mL = (250/1000)L =…

Q: 1. A solution is prepared by taking a clean and dry 50.0 ml volumetric flask. You are tasked to…

A: Mass of watch glass = 23.5 g Mass of watch glass + salt = 30 g So, Mass of salt = (30-23.5) g = 6.5…

Q: You are working in the laboratory and are testing the salinity of ocean water in various areas along…

A: Mass %ge of a component may be calculated by dividing the mass of that component with the volume of…

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A:

Q: Your 50 mL beaker has a mass of 6.51 g. You add 10.00 mL to the 50 mL beaker and now the total mass…

A: Given,     50 mL beaker has a mass of 6.51 g. You add 10.00 mL to the 50 mL beaker and now the total…

Q: A solution is made by adding 25 mL of benzene to 80 mL of toluene. What is the percent by volume of…

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Q: A sample of an ethanol-water solution has a volume of 54.4 cm^3 and a mass of 49.9 g. What is the…

A: The mass of ethanol is - Mass = density×volume Mass = 0.789×54.4 Mass = 42.9216 gram   Then, total…

Q: Determine the kind of relationship that exists between salinity and chlorinity • Equation 3.4…

A: The equation is, Salinity = 1.80655 × Chlorinity So, Salinity/chlorinity = 1.80655

Q: When 35.0 grams of KBr are dissolved in 245 grams of water, an expression for the resulting solution…

A: Answer is  a) 35.0 g KBR per 280 g solution

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The values are given as follows:

Q: Julia needs 75 milliliters (mL) of 4.0 x 104 M sulfuric acid solution. She has access to the…

A: The Answer to the following question is given as -

Q: The molecular liquid chloroform (CHCl3) has a density of 1.48 g/mL, while the molecular liquid…

A: If a new compound forms by mixing of two reactants, that is a chemical change, means both the…

Q: A chemistry student weighs out 72. g of an unknown solid compound X and adds it to 550. mL of…

A: An student weighs out 72. g of an unknown solid compound X and adds it to 550. mL of distilled water…

Q: solution was standardized using 0.256 g of sodium carbonate. (Na2CO3 = 106 g/mol; HCl = 36.46 g/mol)…

A: Given,  Mass of Na2CO3 = 0.256 g Na2CO3 = 106 g/mol; HCl = 36.46 g/mol) Moles of Na2CO3 = mass/Molar…

Q: The combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium sulfate…

A: Given:  Combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium…

Q: 10.0 mL of a salt solution has a mass of 12.8 g. The solution is evaporated to dryness and the…

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Q: Is the mixture described in the table homogeneous or heterogeneous? Explain how you can tell.

A: A substance which consists of two or more elements or compounds which are not chemically reactive is…

Q: 1. What is the percent by mass of 6 g of copper (II) sulfate dissolved in 84 g of water? 2. A…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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Q: a density of 1.30 g/mL. What mass, in kilograms, of NaOH is in 6.00 L

A: Volume of solution(V)= 6.00 L = 6000 mL  Density (d) = 1.30 g/mL  Mass of solution= V × d.…

Q: chemist prepares a solution of barium acetate  BaC2H3O22  by measuring out  105.g  of barium…

A: Given that:  Mass of barium acetate = 105.g  Volume of solution = 250.ml = 250 ml×1L/1000ml = 0.250L…

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The mass of water in the pool is calculated as,

Q: What is the %v/v of a solution made from 141.1 g of ethylene glycol (density is 1.11 g/mL) in water…

A: Given: Mass of ethylene glycol is 141.1 g Density of ethylene glycol is 1.11 g/mL. Density of water…

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Q: A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the…

A: Percent by mass alcohol = 13.5 % Volume of wine = 24 oz 1 oz = 29.57 mL 24 oz = 709.76 mL or 0.70976…

Q: A solution that is 20.0% ethanol by volume has a density of 0.977 g/mL. What is the mass percent of…

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Q: II) Density a) What is the mass of a rectangular piece of aluminum 160.6 cm × 140.8 cm × 15.2 cm?…

A: • Density=massvolume• mass = clensity×volume• volume of rectangle = l×b×h…

Q: When 25.0 grams of NaCl are dissolved in 675. grams of water, an expression for the resulting…

A: Given: Weight of NaCl = 25.0 g Weight of water = 675 g

Q: An acid is dissolved in another acid. Acid has a specific gravity of z.46 and a mass of 50 grams.…

A: 50 grams of acid 1 is dissolved with 50 ml of acid 2 specific gravity of acid 1 is 2.46 g/ml…

Q: A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the…

A: According to the question the student takes 10 mL of sample in 250 mL volumetric flask. The rest 240…

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Q: One of the common intravenous fluids, called physiological saline, is a homogeneous mixture of NaCl…

A: Given: The mass % of NaCl in thephysiological saline, =  0.89% (m/m). The density of physiological…

Q: If a total of 125 mL of a 10% solution is diluted to 500 mL in a 500-mL volumetric flask, what is…

A: 1.) As the initial 10% solution is diluted , so we would use dilution law to calculate concentration…

Q: Give the mass of the solute and mass of the solvent for 1.30 LL of a solution that is 17.0 %% of…

A: Given, % by mass of Pb(NO3)2 = 17.0 % Volume of solution = 1.30 L = 1300 mL     (1 L = 1000 mL)…

Q: A solution is made by dissolving 125 g of sodium chloride in 1500 g of water. What is the percent by…

A: Given, Mass of NaCl = 125 g  Mass of water = 1500 g  % Mass = ?

Q: The molecular weight of sucrose is 342 g mol-1. How many grams would you need to weigh out, to…

A: •GIVEN=Molecular weight of sucrose=342 gm/mol •Molarity=0.8 M •Volume=20 ml=0.02 Litre •*Firstly we…