A water sample contained the following impurities in ppm: CaCO3 = 20 CaSO4 = 13.6 MgCO3 = 8.4 MgCl2 = 9.5 Calculate the hardness of water. Calculate the amount of lime and soda required for softening 10,000 liters of water

Q: A solution contains 4.1 x 10-4 g of Cl-1 per kilogram of solution.  What is this in ppm?

A:

Q: A 15 meter by 12-meter pool of water has a depth of 2.2 meters. What mass of silver ion is present…

A: Volume = area x depth  Given,  15 meter by 12-meter pool, area = (15x12) m2 And depth = 2.2 m  Now,…

Q: Give an example of an aerosol, a foam, an emulsion, a sol, and a gel.

A: Aerosol : It is colloid of fine solid particles , liquid droplets in air or  any other gas. Foam :…

Q: Which of the following is false about exothermic dissolutions? Select one: a. Exothermic…

A: During a reaction from the reactants, some bonds are booked to form new bonds to give products…

Q: An aqueous solution of Potassium sulfate (K2SO4) has a concentration of 38.14% v/v. What mass in kg…

A: Given:  % v/v of K2SO4=38.14%Volume of solution=340 mLDensity of K2SO4=2.66 g/mL To find: Mass of…

Q: What is the Normality of 250ml of 2.417M AL(OH), diluted to 500ml? 14.50N 3.63N 1.21N 4.83N

A: Given,  Volume of Al(OH)3 in mL = 250 mL  Molarity of Al(OH)3 = 2.417 M  Al(OH)3 diluted to volume =…

Q: A 15 meter by 12-meter pool of water has a depth of 2.2 meters. What mass of silver ion is present…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: 6 × 10-3 g oxygen is dissolved per kg of sea water. Calculate the ppm of oxygen in sea water.

A: Given data contains. Mass of oxygen is 6×10-3g. Mass of sea water is 1 kg=1000 g

Q: 4. What is the concentration of PM10 in air in ppmv if its concentration is 0.15 mg/m3? Assume…

A: Given the concentration of PM10 (molecular weight = 12 g/mol) in air = 0.15 mg/m3. Atmospheric…

Q: Calculate the freezing point and boiling point of a solution containing 100g of ethylene glycol…

A: Calculation of Freezing point and boiling point.

Q: A 10.00 gram sample of stream water was found to contain 2.00x10-6 g lead. What is that…

A:

Q: A 50.0-g sample of industrial wastewater was determined to contain 0.48 mg of mercury. Express the…

A: GIVEN: Mass of sample=50.0g  Mass of mercury= 0.48 * 10-3g To Solve: mercury concentration of the…

Q: What volume of 0.220 M HBr solution (in mL) is required to obtain 0.060 moles of HBr? A) 3.67 L B)…

A: Given, Number of moles of HBr = 0.060 moles Molarity = 0.220 M

Q: How many parts per million (ppm) is 1mg/L? O 1ppm O 10ppm O100ppm 1000ppm

A: Given  Concentration = 1 mg/ L  ppm  = ?

Q: The normal creatinine levels in adults are 0.6-1.2 mg/dL. If a 5.0-mL sample contains 45 μg of…

A: Given that,The normal range of creatinine level in adults is 0.6 to 1.2 mg/dL

Q: Calculate the amount of temporary and permanent hardness of a water sample in units of Degree…

A: We have to find the temporary and permanent hardness of a water sample in units of Degree Clarke’s,…

Q: For the following concentrations, determine the equivalent of a. 82 µg/mg albumin in ppm b. 5.4 x…

A: a. 1 ppm = 1 mg/L 1 L = 1000000 mg 1 mg = 1000 ug So, 1 ppm = 1000 ug / 1000000 mg = 1/1000 ug/mg =…

Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

A: Given,  Mass of the compound (w) =  1.966 g Mass of cyclohexane (W) = 75.00 g Freezing point of…

Q: In 1999, scientists reported that groundwater from a waste site near Atlantic City, New Jersey had…

A: Parts per billion or ppb is the 1 micrograms (ug) of solute per 1 Liter of the solution,…

Q: What are the mole fraction and the mass % of a solution made by dissolving 0.50 g KI in 0.500 L of…

A: Mass of KI = 0.50 g Volume of water = 0.500 L                              = 0.500 × 1000 mL…

Q: A pill weighing 325 mg contains the following. What is the concentration of each in ppm ? A. 12.5 mg…

A: Part a:Given:12.5 mg Captopril and mass of pill = 325 mgFormula to calculate concentration in…

Q: Have 50 gallons of water dripping concentrated nutrients into the water system. Need a concentration…

A:

Q: A 3.0 kg sample of pond water contains 3.6 mg of a pollutant. What is the concentration of this…

A: Given information,       3.0 kg sample of pond water contains 3.6 mg of a pollutant.

Q: Starting with solid sucrose, C12H22O11, describe how you would prepare 250 mL of a 0.250 M sucrose…

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Q: If tap water contains 2.35 x 10^-3 M CaCO3, calculate the concentration of CaCO3 in ppm.

A: In this question, we want to determine the Concentration of CaCO3 in ppm  How we can convert…

Q: How many grams of lead is contained in 6.0 × 10^3 gram of blood if the lead content is 0.62 ppm

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Q: A 15 meter by 12 meter pool of water has a depth of 3.0 meters. What mass of silver ion is present…

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Q: A commercial bleaching solution contains 13.6% (v/v) of sodium hypochlorite, NaOCl. What is the…

A: We have to calculate the volume of NaOCl.

Q: A drinking water plant adds 500. g of fluoride to a water tank containing 500,000 L of drinking…

A: ppm is the abbreviation of parts per million. It is equivalent to mg/L. Conversion of g into mg: 1…

Q: 12. The Environmental Protection Agency limit for nitrates in drinking water samples is 10.0 ppm…

A: Given: Concentration of nitrates in drinking water (EPA Standard) = 10 ppm Concentration of nitrates…

Q: Determine the total hardness as ppm CaCO3 of a sample of water that has calcium content of 56 mg/L…

A: We have to find the total hardness as ppm (mg/L) CaCO3 of a sample of water. Given - Calcium content…

Q: A commercial bleaching solution contains 13.6% (v/v) of sodium hypochlorite, NaOCI. What is the…

A:

Q: A 83.683.6 g sample of ground water is found to have a lead concentration of 10.3910.39 ppm.…

A: Mass of ground water is 83.6 g. Concentration of lead is 10.39 ppm.

Q: Which of the following can be used to measure a very small concentration (much less than 1% m/m)?…

A: Given: Mass percent of solute is much less than 1 % (m/m) (assuming its 0.0001 %). Assuming 100 g of…

Q: How many grams of manganese acetate tetrahydrate, Mn(C2H4O2)2 x 4H2O, do you need to prepare 2…

A: Given information: Concentration of solution in ppm = 1000 ppm Volume of solution = 2 L

Q: Which of standard substance (or standardized solution) is correct for standardization of ICl :…

A:

Q: What concentration of silver nitrate (in ppm) is present in 750 grams of water that contains 9.0 x…

A: Concentration is defined as the number of moles of solute present in per liter of solution. But the…

Q: Calculate the number of mL of a 500ppm solution needed to prepare 100mL of a 50 ppm solution.

A: Given:Concentration (C1) = 500 ppm.Volume (V2) = 100 mL.Concentration (C2) = 50 ppm.

Q: What is the solubility of sodium sulphate in water at 30°C (Round your answer to the nearest 10, and…

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Q: tion 8 When carbonating fruit, the initial partial pressure of CO2 is 6.56 x 104 atm, resulting in a…

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Q: Some ionic components of seawater are given in the following table: Cation Wt% Anion Wt% Na 1.06 Cl…

A: ppm concentration is used to express the composition of very dilute solutions, or for the solute…

Q: What is the hardness in water in ppm if there is 500g of CaCO3 in 1 x 10^3mL of water?

A: amount of CaCO3=500g volume of water=1×103 ml Mass of water =density of water ×volume

Q: A student peeled the skins from grapes, exposing cells with membranes that are only permeable to…

A: The rate is slower because smaller grapes can expand more than larger grapes to hold excess water.

Q: A solution contains 11 ppb of toluene. This means that ___. 1 g of solution contains 11 ×…

A: Ppb is the concentration measurement and is named as parts per billion. It measures the…

Q: A 37.5 mg sample of NaCl is dissolved in 21.0 kg of H2O.  What is the solution concentration in ppm?

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Q: A certain solution is 2.5% (w/v) NaCl (salt) in water. Calculate the number of grams of sodium…

A:

Q: The allowable concentration of arsenic in drinking water is 0.05 mg of arsenic per liter of water.…

A: The formula to find concentration of solution = Weight of solute in grams/weight of solution in…

Q: What is the ppm concentration of calcium in a 15 g soil sample if it is found that there is 98…

A:

Q: Wastewater from a cement factory contains 0.490 g of Ca2+ ion and 0.0250 g of Mg2+ ion per 100.0 L…

A: The equation is:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.