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calculate the quantity of lime and soda for softening 300,000 litres of water, using 20ppm as a coagulant.impurities in water are as follows Ca2+=160ppm, Mg2+=96ppm,HCO3- =512ppm, dissolved CO2 =34ppm.
CO(g)+2H2(g)->CH3OH(g) How many moles of each reactant are needed to produce 3.60 X 10^2g of CH3OH?
before addition of any HCl (b) after addition of 25.0 mL of HCl (c) after addition of 50.0 mL of HCl (d) after addition of 100.0 mL of HCl
Find the of % Nickel in the coin solution: molority of Nickel is .8469 density of coin solution as 1.00g/mL
Problem- If Magnesium is burned under pure nitrogen, a black powder, Mg3N2 is produced. Why then is the product gray when Mg(s) is burned in air?
sodium hydrogen carbonate (NaHCO3) is mixed with 10.0 grams of sodium carbonate in enough de-ionized water to give a total volume of 250.0 ml. What is the pH of the resulting solution
1. What is the percent composition of all the elements in the compound ammonium dihydrogen phosphate?
what is your analysis on the societal implications of using this process atomic nuclear
Question- Refer to Loratidine. Which of the following statements best describes the base peak in a mass spectrum. a) The peak from the most stable radical
A cylinder with a moveable piston contains 0.90 mol of gas and has a volume of 342 mL. What will its volume be if an additional 0.22 of gas is added to the cylinder?
Concerns over the harmful effects of chlorofluorocarbon on stratospheric ozone motivated a search for new refrigerants. One alternative was 2,2-dichloro-1,1-trifluoroethane (''refrigerant 123''). Estimate the temperature change that would accompany..
Calculate the energy in joules and calories required to heat 5.25 g of water from 5.5 oC to 64.8 oC.
An unknown compound contains only carbon, hydrogen, and oxygen (C_xH_yO_z). Combustion of 5.50 of this compound produced 8.07 of carbon dioxide and 3.30 of water.
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