How many milliliters of a 10% magnesium chloride (MW: 95.21 g/mol) solution contains 30 mEq of magnesium ion?

Q: A Pb contaminated water sample contains 0.0013 % Pb by mass. How much of the water (in mL) contains…

A: The mass percent refer the mass of solution in 100gm of solution  Use this is a conversion factor to…

Q: The concentration of a NaCl solution is 25.0% (%w/v). What volume (mL) of this solution contains…

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Q: What is the molarity of an aqueous solution prepared by adding 36.5 g of barium chloride to enough…

A: Molarity is defined as total number of moles of solute present in 1000 ml of solution Molarity =…

Q: A 34.0% sulfuric-acid solution has a density of 1.25g/mL. How many grams of H2SO4 are contained in…

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Q: What is the molarity of a concentrated HBR solution if the solution is 69.7% Hbr by mass and has a…

A: 69.7% HBr by mass means, 69.7 g of HBr in 100 g of solution. So, number of moles of HBr in solution…

Q: The density of the concentrated HBr solution of 48% by mass is 1.50 g / ml.  a) How many grams of…

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Q: In a certain medical test designed to measure carbohydrate tolerance, an adult drinks 7 ounces of a…

A: Given values: Total amount of solution = 7 ounces Let the amount of 30% glucose solution be 'x'

Q: A 5.16% (w/v) of aqueous glucose has mL of solution. g of glucose in 150.0

A: Given :-  % (w/v) aqueous glucose solution = 5.16%  Volume of solution = 150.0 mL  To calculate :-…

Q: What is 2.7 x 10^-3 grams of lead (Pb) per gram of solution?a. 2.7 ppmb. 2700 ppbc. 2700 ppmd. 2.7…

A: ppm is parts per millionppb is parts per billion

Q: A 6.9 M KOH solution in water has 30% by weight of KOH. What is density of KOH in g/mL

A: Given: Molarity of KOH solution = 6.9 M Weight % of KOH = 30% Molar mass of KOH = 56 g/mol

Q: What is the total mass (in grams) of a solution that contains 22.5 grams of MgCl2 where the solution

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Q: A solution is 2.25% by weight NaHCO3. How many grams of NaHCO3 are in 125.0 g of solution? 2.81 g…

A: Given  Concentration of NaHCO3 = 2.25% by wt.  Mass of solution = 125 g  Mass of NaHCO3  present 125…

Q: What is the percent by mass of HCLO4 in the solution

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Q: How many moles of NaOH are present in a 0.881 mol/kg of NaOH solution if there is 350 mL of  water…

A: Molality: The number of moles of the solute dissolved in one kilogram of the solution is known as…

Q: 25.0 % (w/w) solution of aqueous HCl.

A: Chemical reactions are written in terms of moles of reactants and products. Different concentration…

Q: 5: An 8.0% NaCl solution has a density of 1.05 g/mol. What is the molar concentration (M) of the…

A: Density, mass and volume are related as Density(d) = mass/volume. Volume = mass/density. Given, 8%…

Q: household bleach contains 6% sodium hypochlorite. How much household bleach should be combined with…

A: Answer: In this question we have to find out volume of household bleach needs to be mixed in weaker…

Q: The concentration unit one part per billion (one ppb) is equivalent to one _____ of solute per _____…

A: In this question, we will see that 1ppb is equivalent to which unit.  ppb and ppm both are…

Q: The density of an aqueous solution containing 25.0 percent of ethanol (C2H5OH) by mass is 0.962…

A: Given : Density of solution = 0.962 g/mL And percent by mass of ethanol = 25.0 %. Assuming 1 Kg i.e…

Q: How many liters of a 3.85 M K2SO4 solution are needed to provide 95.4 g of K2SO4(molar mass 174.01…

A: The molarity of the solution is given as 3.85 M K2SO4 and it is required to calculate the volume. To…

Q: Concentrated HBr is 48% HBr by mass and has a density of 1.50 g/mL.How many grams of concentrated…

A: Given: Concentration of final solution = 1.50 M Volume of final solution = 750 mL = 0.750 L…

Q: What mass of KBr is present in 54.92 g of 14.2% (m/m) KBr solution?

A: Answer: In this question we have to find out the mass of KBr that should be present in 54.92g…

Q: How do you prepare 0.4 N 500 mL hydrochloric acid solution by using 37% by mass HCl solution with a…

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Q: What is the molarity of an 85.0-mL ethanol (C2H5OH) solution containing 1.77 g of ethanol?   What…

A: The answers to both questions are given as:

Q: The concentration of bromide ions in seawater is approximately 6.70 X 10-3 %(m/v). The lab has a…

A: The concentration of bromide ions in seawater = 6.70 × 10-3 %(m/v). This means that 6.73 × 10-3 g of…

Q: lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample…

A: The density of any substance or liquid is calculated by the formula: d=mV Where, m is the mass of…

Q: Molarity! A solution is prepared by dissolving 20.0 g of Chloroform (CHCl3) in 60.0 gram of benzene…

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Q: A solution of ethylene glycol (C2H6O2) in water is 3.981 molar and has a density of 1.0296 g mL–1 .…

A: Molarity of solution is the number of moles of solute present per liter of solution.Percent, by…

Q: If 20.1408 g of KNO, (MM = 101.10 g/mol) is dissolved in 15.06 mL of water at 66.8°C (Density(H,O)…

A: Answer: Solubility of a compound in water at a particular temperature is the maximum amount of…

Q: How many mL of benzene (C6H6; D = 0.877 g/mL) must be added to 187 mL hexane (C6H14; D = 0.660 g/mL)…

A: mL of benzene needed for the solution = ?

Q: How many millilitres(ml) of a 1o00 ppm solution of CaC12 prepare from 3 mg ? 9 ml O 6 ml O 3 ml O…

A: Given :  Mass of CaCl2 = 3 mg  = 3 x 10-3 gm  Concentration of solution = 1000 ppm

Q: Isotonic saline solution has a mass % NaCl concentration of 0.900 %. Assuming its density is 1.00…

A: Given, Density of isotonic solution = 1.00 g/ml Mass percent of NaCl = 0.900 % 0.9 % means 0.9 g of…

Q: How many mL of a 5.02% copper(I) bromide solution contains 2.66 g copper(I) bromide?  The density of…

A: Mass percent :- The mass of solute present in 100 grams of solution is known as its mass percent .…

Q: A solution prepared by mixing 35 g of NaCl and 100. g of water has a mass percent concentration of…

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Q: A Pb-concentrated water sample contains 0.0011% Pb by mass. How much of the water (in mL) contains…

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Q: Given a concentration of a solution, determine the amount of solute. Percent volume to volume is the…

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Q: How many mLmL of a 0.155 M KClM KCl solution contain 2.55 g KClg KCl?

A: Molarity of  solution is and amount of  in gram is . Convert mass in gram of  in moles of  using…

Q: The mass percent of acetic acid in household vinegar is approx. 5.00% How much water would you need…

A: Dilution :-  If a solution of molarity M1 and volume V1 is diluted by adding water to a solution of…