A chemist wants to make 5.0 LL of a 0.330 MCaCl2MCaCl2 solution. What mass of CaCl2CaCl2 (in gg) should the chemist use?         Express your answer in grams using two significant figures.

Q: 1.00 mL is taken from a stock solution of concentration 8.47 g/L and added to a 10.0 mL volumetric…

A: Given, Stock solution: Concentration of the stock solution (C1) = 8.47 g/L Volume of the stock…

Q: By weight, liquid A makes up 8 percent of solution R and 18 percent of solution S. If 3 grams of…

A: Percent means per 100. Be it 100ml or g or any other unit.

Q: 3. When solutions containing 1.0000 g of BaCl2 and 1.0000 g of NazSO4 were mixed, solid BaSO4…

A: Note - Since you have posted a question with multiple sub-parts, we are supposed to solve only the…

Q: A solution for disinfecting clinical thermometers was prepared by dissolving 22.5 g of ethyl alcohol…

A:

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

A:

Q: Ocean water contains 3.3 %% NaClNaCl by mass. What mass of ocean water in grams contains 43.8 gg of…

A: Mass percent of NaCl = 3.3 %

Q: One solution contains 44% alcohol, and another solution contains 81% alcohol. How many liters of 81%…

A: Given  One solution contains 44% alcohol, and another solution contains 81% alcohol. We need to find…

Q: The mass of solute per 100 ml of solution is abbreviated as (m/v). Mass is not technically the same…

A:

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

A:

Q: A chemist adds  925.0mL  of a  /0.00469gL  copper(II) fluoride  CuF2  solution to a flask.…

A:

Q: he weight (in mg) of an 80.0%(w/) sodium phosphate dihydrate reagent needed to prepare 800.0 mL of…

A: Total volume of solution = 800 mL Density of solution = 1.00 g/mL Solution contains 5.68 ppm = 5.68…

Q: What is the concentration, in mass %, of a solution made by mixing 35.89 g of NaCl with 253.4 mL of…

A: The mass % can be calculated by the ratio between the mass of the solute to the total mass of the…

Q: What is the mass percent of magnesium chloride in a 225.0 g solution made with 44.32 g of magnesium…

A: The mass percent of magnesium chloride present in the solution can be determined by using the…

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: For Practice 8.3 - Enhanced with Feedback You may want to reference (Pages 320 - 324) Section 8.2…

A: Given - - > M1 = 3.50 M M2 = 0.850 M V1 =  100 ml V2 =? We known that, M1V1 = M2V2

Q: Given:  Weight of silver chloride: 0.750g MW of silver nitrate: 170 g/mol MW of silver chloride: 143…

A: Volume of silver nitrate for standardization can be calculated from the moles of silver chloride…

Q: An aqueous solution of sodium hydroxide, NaOH , is made by dissolving 15.6 grams of sodium hydroxide…

A: The question is based on the concept of solutions. molarity is a method of expressing concentration…

Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: 3. When solutions containing 1.0000 g of BaCl2 and 1.0000 g of NazSO4 were mixed, solid BaSO4…

A: Given that : The mass of BaCl2 used = 1.000 g The mass of Na2SO4 used = 1.000 g The molar mass of…

Q: A stock solution of sodium chloride solution was prepared (at 25°C) by dissolving 250 mg of sodium…

A: Ammonium hydroxide is NH4OH. It will dissociate as : NH4OH(aq.)↔ NH4+ (aq.) +  OH- (aq.) Here,…

Q: A chemist makes 570.mL of zinc nitrate ZnNO32 working solution by adding distilled water to…

A:

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: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given  The mass of the 1 pill = 1.0g  Active ingredient contain in each pill = 5.5% i.e., (5.5/100)…

Q: How many grams of sucrose are needed to make 625 mL of a 32.0% (w/v) sucrose solution?

A:

Q: O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume A chemist adds 390.0 mL…

A:

Q: How many milliliters of a solution that is 11.21% (w/w) HNO3 with a density of 1.2000 g/mL should be…

A: In the given question, the mass percentage of the solution, the density of the solution is given.…

Q: What volume of a concentrated HCl solution, which is 36.0% HCl by mass and has a density of 1.179…

A: 1)  pH of HCl solution to be prepared =1.9

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: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Solution - According to this question - Given - Formula - no of mole = molarity x volume thus, no of…

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: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given,2.0g pill contains 7.5% of the active ingredient by mass.Then,25 pills contains = ?

Q: The registered pharmacy technician receives a prescription for 100 of 17% w/ v salicylic acid…

A: Given: prescription required = 17 % w/v salicylic acid ointment. Amount of ointment required = 100…

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: Answer

Q: A solution of NaOH was created by mixing 5.100 g of NaOH to a total volume of 108.2 mL (aka volume…

A: Mass of Solute, NaOH = 5.100 g Volume of solution = 108.2 mL Density of solution = 0.42 g/mL Density…

Q: Someone invents a new unit of measurement called a musk and defines that 5 mu equal to exactly 10-7…

A: In the given question we have to convert  the gram in musk unit measurement, the given measurement…

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: We have given that  Concentration of glucose = 5% by mass   Given that : density of Solution : 1g/mL…

Q: aqueous solutes fed directly to a patient's veins. If an IV solution is 5.0% glucose by mass, how…

A: % by mass is a concentration term which is used to prepare solution of different concentration. The…

Q: When 50. mL of 5.4 M NaCl is diluted to a final volume of 300. mL, what is the concentration (M) of…

A: We know that,  V1S1 = V2S2 Where, V = Volume  S = strength or concentration

Q: 2. A 9,55-g sample of a solid was placed in a 15.00-mL flask. The remaining volume was filled with…

A:

Q: O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume A chemist adds 1.60 L of…

A: A chemist adds 1.60 L of a 0.0014 mM copper(II) fluoride (CuF₂) solution to a reaction flask.…

Q: Calculate the number of grams of sodium in 2.60 gg of each sodium-containing food additive.…

A: The number of moles of a compound is mathematically expressed as: where n, m, and M represent the…

Q: A mixture sample containing 80% NaHCO3 and 20%NaCl was marketed for certain food preparations. As an…

A: NaHCO3 decomposes on heating as follows:

Q: You plan to prepare 500 mL of 0.01 M NaCl solution, and you have 5.00 L of a 1.00 M stock solution…

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

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: A particular beer is 6.50 (C₂H₆O). If a single bottle of beer contains 750ml of beer , what mass, in…

A: Density is defined as the ratio of mass to volume. density=massvolumemass=density×volume     Given a…

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 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: Assuming volumes are additive, how much water (in mL) should be added to 20 mL of a 2.48 M solution…

A: Provided initial volume (V1)=20 ml Initial molarity (M1)=2.48M Final molarity (M2)=0.250M Number of…

Q: An analytical chemist weighs out 0.061 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given: Mass of acid = 0.061 g Molarity of NaOH = 0.1900 M Volume of NaOH = 3.3 mL = 0.0033 L

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…