A salt solution was evaporated on a hot plate. The dish holding the solution had a mass of 238.7564 g. After drying the salt solution, the dish then weighed 241.5823. What is the mass of the dried salt?

Q: Insulin is a protein that is used by the body to regulate both carbohydrates and fat metabolism. A…

A: Given: Concentration of insulin = 30.0 mg/mL. And volume of insulin solution = 275 mL.

Q: A 3.40 M aqueous solution of LiCI has a density of 1.0758 g/mL. If the total mass of the solution is…

A: given molarity = 3.40M mass of solution = 59 g density of solution = 1.0758 g/ml

Q: after 5.63g sample of Wood's metal has been added to the water in a 10-mL graduated cylinder, the…

A: Given  weight of wood's metal = 5.63 g  volume of cylinder = 10 mL  new water level = 8.7 mL  Find…

Q: Questions 1.39

A: The reaction is as follows,

Q: A beaker has a mass of 225.08g . When a liquid is added to the beaker, the combined mass is…

A:

Q: A 12.0 % sucrose solution has a density of 1.05 g/cm3. What mass of sugar is in 55 mL of this…

A:

Q: The liquid substances mercury (density = 13.6 g/mL), water(1.00 g/mL), and cyclohexane (0.778 g/mL)…

A: Given: Density of mercury is 13.6 g/mL Density of water is 1.00 g/mL Density of cyclohexane is 0.778…

Q: Q5: 1.44 grams of a sample of marble (impure calcium carbonate) dissolved in 40 ml of 1.0 normality…

A: Initial concentration of acid (M) = 1.0 M Initial volume of acid (M) = 0.04 L Initial number of…

Q: A 9.55g sample of a solid was placed in a 15.00-ml flask. The remaining volume was filled with…

A: Density of a substance is defined as mass per unit volume.It is given by the formula

Q: The stockroom has provided you with a 1.60 M stock solution of NaCl. What volume of this stock…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: Automobile batteries are filled with an aqueous solu­ tion of sulfuric acid. What is the mass of the…

A: The mass of sulfuric acid has to be given. Density: A measurement of mass per unit volume.

Q: What is the mass, in grams,

A:

Q: A laboratory provides the following analysis obtained from a 50 ml sample of water. Ca²+ = 40 mg/L,…

A:

Q: A solution of 20.91 % by weight H2SO4 has a specific gravity of 1.150. What is the normality of this…

A: Answer-1 Specific gravity is the ratio of density of a substance with the density of water. Since,…

Q: A 9.55-g sample of a solid was placed in a 15.00-mL flask. The remaining volume was filled with…

A: Given that 9.55 g sample of solid was placed in 15.00 mL flask and remaining volume was filled with…

Q: you have 125 g of a certain seasoning and are told that it contains 22.0 g of salt. What is the…

A: Given,mass of salt = 22 gmass of seasoning = 125 gSo,mass percentage of salt in seasoning = (22…

Q: A solution of 20.91 % by weight H,SO, has a specific gravity of 1.150. What is the normality of this…

A: We have to find normality of solution

Q: Vinegar is a solution of acetic acid (the solute) in water (the solvent) with a solution density of…

A: Given : Concentration of vinegar = 0.80 M And density of vinegar solution = 1010 g/L Assuming 1 L of…

Q: À mixture of sand, salt, and iodine was separated by first heating the mixture to drive off the…

A: The mixture contains sand, salt and iodine. Mass of dried sand and evaporating dish = 103.987 g…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: Mass of clean pycnometer = 25.151 g Mass of clean pycnometer plus water = 42.481 g  Initial mass of…

Q: A 75.0-g sample of a pure liquid, liquid A, with a density of 3.00 g/mL is mixed with a 50.0-mL…

A:

Q: A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body mass…

A: Given, A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body…

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: A beaker has a mass of 40.94 g. After 5.00 mL of the concentrated hydrochloric acid solution is…

A: The density of a substance is calculated by formula  Density =mass ÷volume  Given mass of beaker…

Q: A solution of 20.91% by weight H;SO, has a specific gravity of 1.150. What is the normality of this…

A:

Q: olume of a 1.25 M potassium chloride solution will contain 42.87 grams of potassium

A: The concentration of a solution depends upon the moles of solute and volume of solution.here moles…

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: An instrument used to determine the weight of samples used in analysis is called a weigh balance.…

Q: A 10.0 mL sample of oil is transferred into a beaker with a mass of 43.559 g. The mass of

A: given  beaker mass =43.559 gr  sample of oil volume =10 ml beaker mass with oil=56.890 gr mass of…

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…

Q: A mixture is made by combining 1.51 lb of salt and 4.73 lb of water. What is the percentage of salt…

A: Percentage by mass or mass percent (w/w) % is defined as the ratio of mass of a substance to total…

Q: The solubility of benzic acid in water at room temperature is 0.38 g per 100 ml of water. If 4.62 g…

A: When benzoic acid is dissolved in 100 ml of hot water (assume all the benzoic acid dissolves) and…

Q: The density of toluene (C7 Hs) is 0.867g/mL, and the density of thiophene (C,H4S) is 1.065 g/mL. A…

A: Solution

Q: A student determines the calcium content of a solution by first precipitating it as calcium…

A: Given data,Molarity of Ca(NO3)2=0.531MVolume of Ca(NO3)2=34.0mL=0.034L

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

A: The mass of 44.0 mL of CHCl3 is calculated as shown below where m1, d, and V is the mass, density…

Q: 1.4L of a 2.50 M HNO, solution is added to water so that the final volume is 5.0L Express your…

A: Given: Molarity of HNO3 solution = 2.50 M             Volume of HNO3 solution = 1.4 L       On…

Q: A certain solution is 4.40% by mass in calcium carbonate (CaCO3) if the density of the solution is…

A: Given that: Mass percent of calcium carbonate = 4.40% Density of the solution = 1.02 g/mL Volume of…

Q: A 2.80 M aqueous solution of LiCI has a density of 1.0626 g/mL. If the total mass of the solution is…

A:

Q: A 15.6-g sample of sodium carbonate is added to a solution of acetic acid weighing 19.7 g. The two…

A:

Q: A 9.55-g sample of a solid was placed in a 15.00-mL flask. The remaining volume was filled with…

A: Given: Mass of solid sample = 9.55 g Volume of flask = 15.0 mL Mass of solid and benzene = 19.33 g…

Q: a sample of unknown mixture has a total mass of 134g, a total volume of 113 cm3, and consists only…

A: Both volumes and masses are addictive in nature. If in a mixture, we add different mass  and volume…

Q: ) An aqueous solution of ethyl alcohol is made by transfering 4.72 mL of liquid ethyl alcohol to a…

A: % v/v = (volume of solute / volume of solution)x100

Q: 1. Twenty grams of potassium dichromate (K₂Cr₂O7) is dissolved in 150 mL of water. What is its…

A: Given: Mass of K2Cr2O7 = 20 g. Volume of solution = 150 mL = 0.150 L…

Q: Suppose you have 150. mL of a substance with a density of 48.0 g/dm3 and want to determine the mass…

A: Given:  Volume of the sample = 150 mL Density of the sample = 48.0 g/dm3 We have to calculate the…

Q: A student heated a hydrated salt sample with an initial mass of 5.322 g. The sample was heated to…

A: Given : Initial mass of hydrated salt = 5.322 g And mass of salt after reheating = 2.798 g

Q: A preparation of soda ash is known to contain 98.6% Na2CO3 (105.99 g/mol).  If a 0.678-g sample…

A:

Q: compound? element? solution? heterogeneous? pure substances? a. soda pop b. used motor oil freshly…

A: Compound is defined as two or more elements mixed together then compound formula Mixture is defined…

Q: A solution of 20.91 % by weight H2SO4 has a specific gravity of 1.150. What is the normality of this…

A: We have to find normality of solution

Q: what is the volume of 1.21x10^-1 grams of a solution if its density is 0.880 g/mL?

A: Mass of solution = 1.21 × 10-1g Density of solution = 0.880g/mL