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What is meant by water hardness? Explain the difference between temporary and permanent hardness.
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- A sample of water is found to contain Ca(HCO3)2 = 40.5, Mg(HCO3)2 =46.5, CaSO4=32.1, CaCl2=22.45, MgSO4= 27.6, SiO2=13.5, NaCl= 15.4 mg/L. Calculate Temporary, permanent and total hardness in degree French.Determine the exact hardness in units of mg/L as CaCO3. Ba2+ contributes to hardness as well.Which one hardness type that remain .after boiling process Temporary hardness. O Permanent hardness. O
- Describe the steps involved in recrystallization.Which of the following is a false statement about permanent hardness in water?A. Permanent hardness is caused by insoluble chloride and sulphate salts of calcium and magnesium.B. Permanent hardness is removed by boiling water.C. Permanent hardness is expressed as non-alkaline hardness.D. The difference between total hardness and permanent hardness refers to temporary hardness.(1). What is the meant by hardness of water? Explain the difference between temporary and permanent hardness?
- What is the process by which sediment comes to restCalculate the hardness of a water sample containing 21.4 ppm Mg2+ and 51.9 ppm Ca2. O 165.1 equivalent ppm CaCOg O 217.5 equivalent ppm CaCO O 23.8 equivalent ppm CaCO O 512.6 equivalent ppm CaCO3Part III: Determination of Saturated Solutions Molarity (saturated) Tube # Temperature (°C) Molarity (dilute) Absorbance 2 0.6 0.157 20.1 0.291 4 37.6 0.351 50.1 0.500 6. 70.9 0.714 show calculation for Tube #2, Molarity (dilute) (use graph equation): show calculation for Tube #2, Molarity (saturated): 1. Is the relationship between solubility and temperature direct or inverse? Explain.
- Series 9. Mixtures Brass Sand + CuSO4• 5H2O White wine Series 9. Mixtures (continued) Water and BaSO4 Oil and water VinegarDifferentiate between simple distillation and fractional distillation. Please elaborate.: Determine the lime and soda ash dose, in mg/L as CaO and Na2CO3, to soften the following water to a final hardness of 80.00 mg/L as CaCO3. The ion concentrations reported below are all as CaCO3. Assume lime is 94 percent pure and soda ash is 93 percent pure. Ca2+ = 155.0; Mg2+ = 62.0; HCO3- = 136.0; CO2 = 12.0