A sample of an industrial waste water is analyzed and found to contain 48.6 ppb Ni2+. How many grams of nickel could be recovered from 1.88×103 kg of this waste water? _____grams Ni

Q: A solution with a dnsity of 0.876 g/mL contains 5.0 grams of toluene and 225 grams of benzene.…

A: Applying formula of molarity M= n/Vl

Q: How many grams of sucrose (MW = 342.3) will you need to make 1 liter of a 10% w/v sucrose solution?…

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Q: 20. 50 ml of a 0.874 M HNO3 solution is diluted to 0.250 l.  What is the concentration of the…

A: Given values: Initial volume: V1 = 50 mL Initial concentration: C1= 0.874 mL Final volume: V2 = 0.25…

Q: Concentrated sulfuric acid, H2SO4, is about 18 M. If 75 mL of this solution is diluted to 1.5 L and…

A: In the given problem, the molarity of the serially diluted solution can be calculated by using the…

Q: A 6.0 M solution of HCI is diluted to 1.0 M. How many milliliters of the 6.0 M solution would be…

A: Given: Initial molarity of HCl solution = 6.0 M Final molarity of HCl solution = 1.0 M Final volume…

Q: An aqueous solution contains 12.6 ppm of dissolved Ca(NO3)2 (which gives Ca2+ +  2NO3- ). Find the…

A:

Q: please answer questions 1) and 2) (they are part of the same question).    thank you

A: The term number of moles is defined as the ratio of mass to the molar mass of the given compound.…

Q: the mass percent of an unknown NaCl solution with a conductivity of 1,566 uS/cm?

A: We have to find mass percent of an unknown NaCl solution with a conductivity of 1,566 uS/cm.  Given…

Q: Sea water contains an average of 1.08 x 10^3 ppm of Na+ ion. Calculate the molar concentration of…

A: consider 1 L         =   1000 mL of solution. Mass of solvent    =  density ×volume…

Q: 5. As the pharmacist at a rural clinic in Ecuador, you have been asked to make 550.0 mL of an eye…

A: The question is based on the concept of molarity.    it is defined as number of moles of solute…

Q: ) A sample with mass of 2.6g contains 3.6 µg of zinc; calculate the concentration of zinc in ppm? 8)…

A: Q7)                                                         Mass of sample = 2.6 g…

Q: The sample contains CaCl2 and its concentration was 0.03M. Calculate grams of CaCl2 present in 100…

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Q: 10. A water sample was tested for iron content, but was diluted prior to obtaining the instrument…

A:

Q: What is the concentration of AlF63- in 1.00 L of aqueous solution made with 39.1 mmole of Al(NO3)3…

A: Given: Volume of solution = 1.00 L Moles of Al(NO3)3 = 39.1 mmol = 0.0391 mol…

Q: For the following reaction: 2 HCIO4 + Ca(OH)2 → Ca(CIO4)2 +2 H2O (1) What is the equivalent mass of…

A: Equivalent mass:- It is equal to the mass of a given substance which will combine with or displace a…

Q: D-3: Zinc + Copper Sulfate 53. Observations on combining Mg metal and 0.1 M CuSO4 solution Balanced…

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Q: An industrial facility discharges a waste that contains 130 mg/L hydrochloric acid at a rate of 12…

A: Given: 1) Discharge waste contains 130 mg/L of HCl. 2) Rate of discharge is 12 L/min.

Q: The solubility of lead (II) chloride is 0.45 g/100 mL of solution. What is the Ksp of PbCl2? Express…

A: Molarity is defined as number of moles divided by volume of solution in litres

Q: 0.8 M HCl was diluted to a fixed volume of 500 ml. If the new concentration is 0.20 M, what was the…

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

Q: What is the molarity of the solution prepared by diluting 27.4 mL of 2.10 M AgNO3 to the final…

A: Molarity is defined as number of moles of solute divide by volume of solution

Q: How many milliliters of a 0.223 M Rb NO 3 solution contain 0.250 moles of Rb NO 3 ? 1.12 × 103 mL…

A: Data: Molarity of RbNO3 solution = 0.223 M Moles of RbNO3 = 0.250 moles   To find volume of solution…

Q: Select

A: Dear student I have given answer to your question in the image format.

Q: What volume of 0.300 M Iron(III) nitrate is needed to make 75 mL of 0.00300 M Iron(III) nitrate?…

A: We have an initial concentration of 0.300M We need 75ml of 0.00300M Iron(III)nitrate

Q: a 4.8 g sheet of magnesium was immersed in the Fe (II) sulphate solution. After some time it was…

A: The reaction between Mg and Fe(II) sulfate is: Mg + FeSO4 → MgSO4 + Fe. Mass of Mg = 4.8 g

Q: How many mL of 0.25 M of SDS is required to be poured in a 750 mL so that its final concentration is…

A: From given data  Initial concentration M1= 0.25 M Final concentration M2= 0.024 M  Final volume V2 =…

Q: 20.0 mL of concentrated nitric acid (16M HNO3) is diluted to 600. mL. What  is the molarity

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Q: 2) Find the normal concentration of a 150 g solution of phosphoric acid (H,PO4) with a density of…

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Q: 100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. What is the nw concentration of the…

A: If a solution having M1 concentration and V1 volume and it is diluted to M2 Concentration and V2…

Q: 16. The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80.0 M by…

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Q: A solution has a volume of (500) ml if the solution contains 1023×3.022 partial sodium carbonate.…

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Q: In the lab you find a stock solution of nitric acid (HNO3) with no label, and you have been tasked…

A: The prepared solution has a concentration of 0.5 M . This prepared solution is made by using 25 mL…

Q: Too much iron in drinking water can cause the following undesirable effects: rusty color; sediment;…

A: 1) Concentration in ppm is given by  volume of water = 3.82 X 104 L = 3.82 X 107 mL…

Q: How to prepare 2 liters of 0.1 M H2SO4 solution? (H2SO4; MA = 98 g / mol; 96% and d = 1.84 kg / l)

A: For preparation of sulphuric acid , we can calculate first Molarity using Following formula -…

Q: What mass of MCl is needed to make 3000g of 30% solution? (MW: H= 1 , Cl= 35)

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Q: How many milliliters of 0.05 M solution (Ca (NO3) should be mixed with pure water to obtain 500 g of…

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Q: What willl be the Molar concertration of the 288.9  HCl solution prepared from 3 mL of concentrated…

A: 1- First calculate the moles of HCl :  Mass of HCl = [ Density × Volume ]  Mass of HCl = [ 1.18g/mL…

Q: What  is the molarity of the new solution?

A: Given :-    initial concentration(M1) = 16 M                   initial volume(V1)  = 20.0 mL…

Q: While making a stock solution of NaSCN using 0.8 g of NaSCN in a 10 mL volumetric flask. 750…

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

Q: A technician would like to standardize an unknown Ca(OH)2 solution. It takes 22.41 mL of a 0.155 M…

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Q: 8. (2 pts) What volume (in mL) of a 2.0 M K2CrO7 solution must be diluted to prepare 500 mL of 0.10…

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Q: How many mL of 0.625 M KBr are needed to prepare 2. O 200. mL O 0.0200 mL O 313 mL O 31.3 mL

A: The molarity is determined as the moles of solute upon volume of solution in liters. The molarity of…

Q: A 120.0 mL sample of a 0.81 M H2SO4 solution is diluted with enough water to reduce the…

A: On dilution the number of moles remain equal in concentrated solution and diluted solution. Volume…

Q: A solution was prepared by dissolving 3.50 g of KCI MgCl₂ 6H₂0 (277.85 g/mol) in sufficient water to…

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Q: A calibration curve of NaCl conductivity (y-axis) vs concentration (mass percent, x-axis) is made.…

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Q: What is the concentration of chloride in a solution made with 0.5081 grams of Calcium chloride and…

A: Amt of Calcium chloride = 0.5081 g Amt of Water = 250.0 ml MM of Ca = 40.07  MM of Cl = 35.44  MM of…

Q: a) An aqueous solution contains 12.6 ppm of dissolved Ca(NO3)2 (which gives Ca2+ +  2NO3- ). Find…

A: Given that concentration of Ca(NO3)2 = 12.6 ppm Let volume of the solution = 1L = 1000 mL we know…

Q: A cough syrup, which comes in a concentrated syrup, contains red dye #40. The red dye #40 syrup is…

A: The molarity of original syrup is 4.68×10-3 M. The concentration of original solution is diluted by…

Q: Calculate the number of mercury (Hg) atoms in an aqueous solution with a volume of 1.00 L and a…

A: 1 ppb means that 10-6 g of solute is present in 1L of solution. The number of moles of Hg atoms can…

Q: 320 g of a sample of Mg with a coating of Mgo on its surface needed 20 ml 0.1 M HCL for complete…

A: