Pineapple juice in a 355 ml container has 0.133 mol of sucrose. What is the molar concentration of sucrose in the beverage? a) 0.375 M b) 0.560 M c) 0.224 M d) 0.440 M
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- (b)Calculate the quantity of lime and soda required for softening one million litre of thefollowing sample of water. If the purities of lime and soda are 80% and 85%respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit.(c) Discuss different chemical methods which have been used for the synthesis ofnanomaterial with special reference to temperature and solvent along with theiradvantages and disadvantages.(d) Doping can be used to increase conductivity of the substances, explain with examples.What are array and modules? Discuss their working.(b) Calculate the quantity of lime and soda required for softening one million litre of the following sample of water. If the purities of lime and soda are 80% and 85% respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MGSO4 = 30 mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit.10) Table 1 and Table 2 list the general properties and the production alternatives for various pozzolans. |Table 1 Chemical Composition SiO2, % B D 35 93 35 50 A½O3, % Fe3O2, % Саб, % Physical Property Blaine fineness, m²/kg Color 20 0.4 12 25 0.4 10 25 1.6 40 5 430 Gray 19,000 Gray 400 White 390 Gray Production Method a byproduct of producing silicon metal or ferrosilicon alloys 2 Table 2 a by-product in coal fired power stations formed when molten iron blast furnace slag is rapidly chilled (quenched) by immersion in water A dehydroxylated form of the clay mineral kaolinite 3 For the four pozzolans given in the first column of Table 3, fill the remaining columns with the corresponding letters and numbers: • Column 2 - Determine which one is which pozzolan (from Table 1): (A/B/C/D) • Column 3 - Identify the natural and artificial pozzolans: (N/A) • Column 4 - Determine which ones are self-cementing. Column 5 - Determine the production method (from Table 2): (1/2/3/4) Table 3…
- ES C raudon . A water contains 200 mg/L Ca, 75 mg/L Mg, 180 mg/L HCO,, and 150 mg/L. CO₂, all expressed as CaCO3. Determine the chemical dosages required to soften this water as much as possible without removing magnesium. What will the final hardness be? letTen pints of a 5% solution are diluted with 30 pints of diluent, what is the percentage strength of the dilution? a 1.25% b 1.67% c 60% d 15% e 20%What is the molar concentration of 196 mg/L sulfate acid (H2SO4)? Use mol/L or mmol/L as the unit in your final result.
- Q.1(a) What is water sweetening and softening? Discuss the lime-soda process of water softening with special reference to the different functions of lime and soda. (b) A water sample contains the following impurities per litre. Ca(HCO3)2–81 mg Mg(HCO3)2–73 mg CaSO4–68 mg MgSO4–60 mg KCl–100 mg Calculate (i) temporary and permanent hardness in water. Quantity of lime and soda required in kg for softening 50,000 litres of water if the purity of lime and soda are 80% and 90% respectively. (c) What are renewable sources of energy? Discuss their superiority over conventional sources of energy. How solar energy can be trapped thermally?1. What is the amount of organic and inorganic material in water? a. Total solids b. Toral suspended solids c. Volatile solids d. Volatile suspended solidsCalculate the ThOD of a 300 mg/L solution of CsH7O₂N.
- 100 kg of raw sugar containing 93% sucrose, 4% water, and 3% soluble non-crystallizable inert solids is dissolved in 30 kg of hot water and cooled to 20°C. A saturated solution of sucrose at 20°C contains 67% sucrose (w/w). a. Calculate the amount of sucrose (in kg) that remains in the solution. b. Calculate the amount of crystalline sucrose.Find the value of plasticity index Liquid limit-45% Plastic limit=32%Calculate the amount of lime and soda required to treat two million litre (M.1.) of hard water, containing carbonate hardness equal to 15° French, and magnesium hardness equal to 9° French, and a total hardness of 24° French.