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an aqueous solution contains 106 percent sodium chloride nacl by mass determine mass of water is contained in 28 litres of the vapor in this solution
a calorimeter has water of 220 grams at the temperature of fifteen degree celsisu when 140 grams of a substance with a molar mass 560 is combined it
a solution of 020 m of magnesium sulphate mgso4 has an observed osmotic pressure 76 atm at the temperature of twenty five degree celsius determine
given that the mass ratio of na sodium to f fluorine in sodium fluoridenaf is 1211 determine how much fluorine was formed if a sample of nafsodium
using a sample that is consisting of 10 mol of a van der walls is compressed from 200dm3 to100 dm3 at the temperature 300k in the process 202 kilo
compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of 100degc in a thin flask in an
when steam condenses to h2olliquid water heat of 226kj is released per gram the heat from 168 grams of steam is used to heat a room containing 644 x
considering the given equation ch4 2o2 co2 2h2o in which methane reacts with oxygen to form carbon dioxide and water as shown determine how much
the vinegar that are generally sold in the grocery stores it is described as 5 vv ch3cooh acetic aciddetermine the molarity of this solution if
a mixture of hydrogen gas of 80 mol and oxygen gas of 40 mol is placed in a sealed evacuated container made of a perfect insulating material at
calculate the vapor pressure of a solution of glycerol of 265ml in 380x102ml of h2o at the normal boiling point of h2o glycerol density is
a 500 g sample of nh42co3 is placed in a closed evacuated flask of 300 l and heated to 400 degrees celsius it produce ammonia water and carbon
considering the given thermochemical equation 2nog o2g rarr 2no2g in which hdeg is given -1144 kj then determine how much heat is released at
if 150 ml of 150 m perchloric acid hclo4 is combined with 500 ml of 0125 m barium hydroxidebaoh2 then compute the resulting pha student placed
a solution of copper sulphate cuso4 was electrolyzed between copper electrodes copper of 64 grams was deposited on the cathode determine the value of
using a sample as a mixture of cucl2 agno3and fecl3 when a sample of 10000-g of this cucl2 agno3and fecl3 mixture is dissolved in h2oand reacted with
a student has sample of hno3 of 340 ml at 25 degrees celsius and add water of 110 ml at 95 degrees celsius then determine the final temperature of
using a sample of gas having 147 mol at the temperature of twenty five degree celsisu exerts a pressure of 398 torr and some gas is combined to the
a nugget of pure gold of 490 grams absorbed heat of 270 joules determine the final temperature of the au if the initial temperature 220degc specific
considering the cell alal3 100mpb2 100mpb compute the cell potentiale after the reaction has operated long enough for the al3 to have changed by 60
if the reaction reaches 900 of completion 900 of the limiting reactant is consumed determine the partial pressures of each of the reactants ch4 o2 no
a nugget of pure gold of 480 grams absorbed heat of 283 joules if the temperature was 230degc initially then determine what was the final temperature
explain how do you compute the minimum volume of h2owater required to dissolve nacl sodium chloride of 500 grams in h2o water at the temperature of
determine how many grams of oxygeno2 would be used when 1082 litres nitric oxide nog is formed at the temperature of 1982 degree celsius and pressure
a gaseous mixture of sulfur dioxide and nitric oxide has a density 1782 gl at the temperature of 1264 degree celsius and pressure of 6707 mm hg