50mL of standard hard water (contains 10g of CaCO3 per liter) required 27mL of EDTA solution for end point. 100 mL of sample water required 12 mL of EDTA solution while 100mL of water after boiling required 7mL of EDTA solution. Calculate total, permanent and temporary hardness of water.

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A: Given the mass of NaF taken = 0.027 g  Volume of the solution prepared = 250.00 mL

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Q: 0.75 gm of calcium carbonate is dissolved in 1 liter of distilled water. 100 ml of this standard…

A: 0.75 gm of calcium carbonate is dissolved in 1 liter of distilled water. 100 ml of this standard…

Q: I mixed hard water or tap water or soft water 5ml + pH buffer 1ml + 3 drops of indicator + EDTA xml…

A: Hard water refers to the water sample that contains soluble salts of calcium and magnesium. It does…

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A: The solution is given below -

Q: For an insoluble metallic salt, Ksp will always be less than 1. True or False

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Q: A 100.0-ml sample of boiler feed water, analyzed for hardness, required 36.8 ml of 0.0386 M EDTA to…

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Q: find the total hardness for water of lake contains (9.83 x10* ( m) of hco3, (1.25x 10 m) of…

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Q: Calculate the hardness of water in ppm CaCO3 if 25.00mL of the sample required 15.00mL of a 0.1000M…

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Q: A water has the following analysis: mg/L 20 30 5 Cation Na+ K+ Ca²+ Mg²+ Sr²+ 10 2 Anion CI HCO3…

A: Water is said to be hard when it does not form a lather with soap. Hard water contains a high…

Q: Istandard hard water (containing 15gms of CaCO3 per 500 mL) required 25 mL of EDTA Solution for…

A: The question is based on the concept of complexometric titrations. we determine the hardness of the…

Q: A 100.0-ml sample of boiler feed water, analyzed for hardness, required 23.8 ml of 0.0146 M EDTA to…

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Q: (ii) 21 mL of standard hard water containing 14 g of CaCO, per litre required 25 mL EDTA solution…

A: The water is that is used for various applications is obtained from various sources such as lakes,…

Q: A water sample is approximated to have a total hardness equal to 120.0ppm. How many milliliters of…

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Q: Suggest various methods to remove temporary and permanent hardness of water with appropriate…

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Q: A 4.0520g sample of HCl, specific Gravity 11.18, required 44.15ml of 0.9035M of Sodium Hydroxide in…

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Q: 6ml of water used (1ml of buffer and 5ml of soft water)    Hard Water Trial 1 Hard Water Trial 2…

A: We would use the given calculations steps to calculate ppm of CaCO3.  For this we would use volume…

Q: Calculate the solubility at 25°C of CaF2 in pure water and in a 0.0060M  NaF solution. You'll find…

A: The equation can be written as follows,

Q: What is the corrected weight (g) of KHP (Molar mass = 204.22 g/mol) with an actual weight of 0.8026…

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Q: Please determine how to make a working standard Solution of about 0.010mg/mL. Caffeine will be the…

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Q: FeCl3 and MgCl2 solution was prepared by dissolving FeCl3 (AR) and MgCl2 (AR) in distilled water.…

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Q: 0.45 gm of calcium carbonate is dissolved in 1 liter of distilled water. 50 ml of this standard…

A: 1mL of standard hard water contains 1mg of CaCO3.

Q: 10mL of a 10% by weight MgCl2 solution (density = 1.1 g / mL) is precipitated as magnesium ammonium…

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Q: 60 ml of standard hardness containing 1 mg of pure CaCO3 per ml consumed 22 ml of EDTA. 40 ml  of…

A: A numerical problem based on EDTA complexometric titration, which is to be accomplished.

Q: Use the follow data below and answer the following questions: Component Concentration (mg/L) CO2…

A: Introduction: Lime-Soda process: Lime (Ca(OH)2) and soda [Na2CO3] are used for removing the hardness…

Q: If the Ksp for CaSO, is 2.4x10- calculate the SO2- in CasO. saturated solution.

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Q: Suppose a groundwater is analyzed to contain 5x10-2 molL-1 Ca2+ and 7x10-3 mol L-1 SO̟². Is this…

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Q: Betnovate-RD® contains 0.025% w/w betamethasone valerate in a water-miscible basis. How much…

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Q: 1. For the following jar test experiments performed with coagulants Z and D GRAPHICALLY determine:…

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Q: Calculate the activity coefficient, y, of Ni²+ when the ionic strength of the solution, u, is 0.085…

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Q: Suppose you are given 0.0856ppm to be the concentration of dissolved lead found in pond water after…

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Q: Develop a titer for determining water hardness based on the following information: 6.240 mg/L Ca2+…

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Q: Make 200 ml of a 15 mM Tris, 50 mM EDTA, and 0.03 M NaCl from stock solutions that are 1M Tris, 0.5…

A: Given Molarity of stock solution of Tris = 1MMolarity of EDTA stock solution = 0.5 Mmolarity of NaCl…