How many milliliters of a 10% magnesium chloride (MW: 95.21 g/mol) solution contains 30 mEq of magnesium ion? 10.4mL 9.8mL 13.2mL 14.3mL

Q: How many grams of HCL solution are in 300ml 0f 4.50%

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Q: The amount of sodium citrate in 60 mL of 22.5% w/v sodium citrate solution is _______ g.

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Q: What is the molarity of a 32.5% HCIO4 solution? The density of this solution is 1.67 g/mL. 4.79 M…

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Q: The amount of potassium chloride in 150 mL of 8.5% w/v potasisum chloride solution is _____ g.

A: 8.5% w/v means 8.5 g potassium chloride in 100 mL solution.

Q: A solution is 5.0% m/v. What is the mass of the dissolved solid in 2500 ml of the solution? 1.…

A: The percent mass by volume (% m/v) : The mass of Solute dissolved in the 100 of the Solution .   A…

Q: A 12.5% (w/w) NiCl2 (MM=129.61 g/mol) solution has a density of 1.149 g/mL. Calculate the molar…

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Q: A 0.900L sample of sea water is found to contain 6.7 mg Zn. Express concentration in ppm?

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: if kf for water is 1.86°C/m, what is the freezing point of an aqueous solution of Sodium chloride…

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Q: 50X NaOH solution in 100 mL of 2.5X NaOH solution

A: Given,  V1 = 100 ml  S1 = 50X  S2 = 2.5X V2 = ?

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

A: The objective of this question is to find out the volume of a 10% magnesium chloride solution that…

Q: Which solution contains the largest number of chloride ions? 100.0 mL of 0.80 M NaCl 100.0 mL of…

A: Given solutions: 100.0 mL of 0.80 M NaCl 100.0 mL of 0.30 M MgCl2 100.0 mL of 0.30 M AlCl3 We have…

Q: Consider a 400 mL solution of 0.10 M NaOH. Calculate the volume of 6 M NaOH required to achieve this…

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Q: 1 Liter O 100 grams 100 mL O 625 mL No correct answer from the given choices

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Q: A solution contains 0.625 g Ca2+0.625 g Ca2+ in enough water to make a 1825 mL1825 mL solution. What…

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Q: A certain lonic compound. X has a solubility in water of 0.121 at 20. C. Calculate the mass of X…

A: Use the volume and the solubility of a compound to calculate the mass of X required.

Q: What mass of benzoic acid (130 g/mol) is required to prepare 75.0 mL 120.0 mM benzoic acid solution?

A: Here, we have to find the mass of benzoic acid that is required to prepare 75.0 mL 120.0 mM benzoic…

Q: Federal regulations require that drinking water have below 15ppb of lead. A 4.55 L sample of water…

A: Answer : concentration of Lead in sample  = 0.115 / 4.55 = 0.02527 mg /L now the density of water  =…

Q: Of the following, a 0.2 M aqueous solution of ________ will have the highest freezing point…

A: Since the depression in freezing point is given by  depression in freeing point = i X Kf X m where…

Q: The amount of water which should be added to 0.700 M NaOH solution to make 100 mL 0.250 M solution…

A: The dilution is done to the solution to decrease the concentration. The concentration is decreased…

Q: If a NaCl solution contains 12 mEq of NaCl in each teaspoonful, how many milliliters will provide 9…

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Q: Calculate the volume of 0.5 M NaCl solution required to prepare a 500.0ml, 3 ppm solution of Na+

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Q: What is the molarity of a solution in which 211g sodium hydrogen carbonate is dissolved in a 10L…

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Q: How much water is needed to dilute a solution of 200 ml of 0.1 M KOH so that the molarity changes to…

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Q: A hydrochloric acid solution has Na2CO3 (Molar Mass = 106) titer of 0.00940 g/ml. Calculate the…

A: Answer : as per the data titer is  0.00940 g/ ml mole  = mass /  molar mass mole of Na2CO3 = 0.00940…

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: How many grams of caffeine need to be added to 850 ml of benzene to make a 0.55 m solution? Density…

A: The molality of the solution is defined as the ratio of no of moles of solute to that of mass of…

Q: How mL of 8.0 M HNO3 is needed to make up a 200 mL solution of 2.0 M HNO3? naय O 10. mL 25mL 50 mL…

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Q: Solution Volume of Solute Mass of Solute Volume of Water (if liquid) to be Added A. 5% by volume,…

A: Concentration of a solute can be expressed in terms of volume by volume percentage. Write the…

Q: What is the mole fraction of solute in a 3.12 m aqueous solution? Xsolute = x10 TOOLS

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Q: A mixture is made of 100.0 mL of water and 1.0 g of silver chloride, AgCl. What does this solution…

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Q: 4 a)The mole fraction of iron(III) nitrate, Fe(NO3)3, in an aqueous solution is 6.42×10-2 . The…

A: The composition of a mixture can be expressed in different units like mole fraction, mass percent,…

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: What is the MOLAR concentration of a 15.0% (by mass) K₂CO3 aqueous solution which has a density of…

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Q: Find the normality of a KOH solution if 27ml of 2.2N HCI solution is neutralized by 21ml of KOH…

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Q: A mixture is made of 100.0 ml of water and 1.0 g of silver chloride, AgCl. What does this solution…

A: Molar concentration is a unit of measurement for the concentration of a chemical species,…

Q: Calculate the volume of NaSCN 12x103M solution necessary to prepare 10 ml of 8x10-3 M NaSCN solution…

A: Using  C1V1=C2V2 for finding the volume

Q: Which of the following is the best molecular level description of what happens when CH3OH is added…

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Q: Given a 100 mL solution of 0.050 M BaCl2●2H2O solution, which of the following statements is…

A: Answer: First of all we will calculate the number of moles of BaCl2.2H2O and then with help of this…

Q: A concentrated phosphoric acid solution is 85.5% H 3PO 4 by mass and has a density of 1.69 g/mL at…

A: Given that ,  Mass percent of H3PO4 = 85.5 %  Density of H3PO4 solution = 1.69 g/mL  Molarity of…