An 870.0 g water sample contains 2.0 mg of chromium. Express concentration in parts per million (ppm).

Q: Percent weight in volume is the number of grams of a constituent in 100 mL of solution/

A: Ans-true

Q: Calculate the molarity of saturated aqueous sodium chloride (58.443 g/mol). A saturated solution…

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Q: The concentration of sodium fluoride, NaF, in a town’s fluoridated tap water is found to be 32.3 mg…

A: The PPM means Parts per million. Data given: Mass of solute =32.3mg =0.0323g. Mass of solution…

Q: 5. Determine the boiling point of a solution of 10 grams of a substance of molecular weight 94 g/mol…

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Q: 2. A solution is prepared by dissolving 10.44 g of NaCl in enough water to make 500.0 mL of…

A: 1 parts per million (ppm) is equivalent to 1 mg/L. Expressing the given concentration in mg/L: 500…

Q: A student needs to prepare 50.0 mL50.0 mL of a 0.80 M0.80 M aqueous H2O2H2O2 solution. Calculate the…

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Q: hat is the molar concentration of a 5.40 L solution that contains 38.5 g of dissolved sodium…

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Q: Calculate the molarity and ppm concentrations of a solution of 25.0 mg of lead dissolved in 200 mL…

A: * Molarity = moles / volume of solution in L * 1 mg/L = 1 ppm By using this 2 relation we can…

Q: KCl is 1.61% by mass in 54.6 g of water. Calculate the mass of KCl present in the solution

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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: 240 220 200 NACIO3 180 KNO 160 140 KBrt 120 100 80 60 NaCl 40 20 20 40 60 100 120 Temperature (°C)…

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Q: Calculate the concentration in ppm of lead in a solution that contains 180.6 mg Pb per 1.54 kg of…

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Q: Solution of barium chlorate by measuring out 17.1 g of barium chlorate into a 50 volumetric flask…

A: Mass of barium chlorate=17.1 g  Molar mass of barium chlorate = 304.23 g/mol Moles = Mass ÷  Molar…

Q: Calculate the molarity of a solution that contains 80. grams of NaOH in 2.0 L of solution.

A: Given :- mass of NaOH = 80 g               volume of solution = 2.0 L  To calculate :- molarity of…

Q: Decrease the solution volume slowly until the word Saturated! appears and only one crystal is seen.…

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Q: A 500 mL sample of waste water contains 26.1 µg of mercury, Hg. If the density of the sample is…

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Q: 100 90 NANO, 80 70 60 CaCl 50 Pb(NO)2 40 KCI NaCl 30 20 10 KCIO, Se,(SO,) 10 20 30 40 50 60 70 80 90…

A: Given :  At 90°C, 20g of potassium chromate is dissolved. How much more can be dissolved to make a…

Q: Consider the solubility curve of NH,Cl at 40°C in 400 grams of H20 to make 250 mL solution. i)…

A: Answer :-  1. Mass of NH4Cl (solute) = 164 g  2. Moles of NH4Cl (solute) = 3.07 mol.  3. Molality of…

Q: The concentration of Br− in a sample of seawater is 7.3 ⋅ 10−4 M. If a liter of seawater has a mass…

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Q: What is the concentration of magnesium bromide,

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Q: The mass of carbon dioxide present in 250 mL of the solution is

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Q: A 1997 g sample of ground water is found to contain 0.0207 g of arsenic. Calculate the concentration…

A: Given: Mass of sample of ground water = 1997 g  Mass of arsenic present in sample = 0.0207 g   To…

Q: 100mL of a 0.100M solution of NaCl is prepared (standard solution). This solution will be used to…

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Q: 7. What is a saturated solution? O a solution where the maximum amount of solute is dissolved in the…

A: Solution: A solution is a homogeneous mixture of two or more components. A solution consists of a…

Q: Between which two gases would you expect N2 to fit onthis graph?

A: Solubility of the compound is defined as the ability of the compound to be dissolved in water or any…

Q: A solution contains 35 mg% (35 mg/100 mL) of Ca++ ions. Express this concentration in terms of…

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Q: 100 90 80 NaNO 70 Pb(NO)2 KCI 60 CaC 50 40 NaCl 30 20 KCIO, 10 Ce,(SO 10 20 30 40 50 60 70 80 90 100…

A: The question is based on the concept of solubility.   The maximum amount of solute which can be…

Q: A solution containing less than the equilibrium amount of solvent is called ________. A) an…

A: The homogeneous mixture of two or more substances is known as a solution. The substance present in a…

Q: A saline solution contains 0.90 g of NaCl per 100 mL of solution. What is its molarity a. 0.15M b.…

A: Molarity is the ratio of moles of solute to volume of solution in litres.

Q: If you have a solution containing 10 µ MGSO4 dissolved in 100 mg solution calculate the…

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Q: A solution has a concentration of 1.24g/L. What is its concentration in ppm?

A: Given the concentration of a solution is: 1.24g/L. What is its concentration in ppm?

Q: To prepare a solution, we dissolve 12.5 mL of ethanol in sufficient water to give a total volume of…

A: Interpretation: The percent-by-volume concentration of 12.5 mL of ethanol in a total volume of 85.4…

Q: Use the References to access important values if needed for this question. An aqueous solution of…

A: The mass of iron(II) bromide is = 3.92 g The mass of water is = 17.7 g The weight/weight percent of…

Q: An aqueous solution has 0.0049 g of oxygen dissolved in 2.5 L of water. Calculate the dissolved…

A: we have to calculate the concentration of dissolved oxygen in ppm

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: parts per billion, ppb?

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Q: Find the percent by mass in which 41.0 g of NaCl (58.445 g/mol) is dissolved in 331 grams  of water

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Q: Calculate the concentration of isopropanol, in percentage per volume, in a solution prepared by…

A: The following formula will be applied to get the answer of this question. % of isopropanol by…

Q: 1. 32.0 µg of pesticide is present in a 300.0 ml aqueous solution. Express the pesticide's…

A: Here we have to convert 32.0 microgram of pesticides present in 300ml of solution to PPM and PPB.

Q: A sugar solution contains 750 mg of sucrose in a volume of 1.5 L.  What is the concentration of…

A: The expression that is used to calculate concentration in mass by volume is shown below in which m…

Q: Osmolarity is the measure of __________concentration of _________ particles. a. total; water b.…

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Q: The EPA (Environmental Protection Agency) currently limits the concentration of fluoride in drinking…

A: ppm means parts per milliion

Q: 6.02 x 10^20 molecules of urea are present in 100 mL of its solution. The concentration of solution…

A: First we will find moles of urea present using mole concept. Then find concentration of urea.

Q: True or False. 1. A solute is a substance dissolved in a solvent to form a solution. 2. A solvent is…

A: True or false to be determined for the given statements.

Q: An aqueous solution containing 30.0% ammonium sulfate by mass has a density of 1.17 g/mL. The molar…

A: Given - - > Mass of solution = 100 g Density of solution = 1.17 g/ml Volume of solution  =…

Q: A 100.-gram sample of liquid water is heated from 20.0°C to 50.0°C. Enough KCI03(s) is dissolved in…

A: Answer:- This question is answered by using the simple concept of calculation of mass to make…

Q: 1. Find the percent by mass in which 41.0 g of NaCl is dissolved in 331 grams of water.

A: NOTE : Since you've posted multiple question,we'll solve only first question for you. If you want…

Q: ميز هذا السؤال A 500 mL sample of waste water contains 26.1 µg of mercury, Hg. If the density of the…

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Q: What is the molarity of a solution prepared using the given amount of solute and total volume of…

A: Given, the compositions of the solutions: a. 25.0 g of KCl in 630 mL of solution b. 11.0 g of Na2CO3…