an unknown mass of each of the given substances
An unknown mass of each of the given substances 1.Sand (tf=70.4 C),2.Pyrex glass(tf=67.6 C),3.water(tf=55.9 C) ,4.ethanol (tf=45.9 C), initially at 19.0 degrees Celsius, absorbs 1930 Joules of heat. Find out the mass of each substance.
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physical properties of diethyl ether c2h52o are given as deltahdeg fusion 766 kjmol melting point -1160degc deltahdeg vaporization 260 kjmol boiling
consider the given equation asnbsp 2naclaq h2o --gt cl2g h2 g 2naoh aq it shows the electrolysis of a brine solution calculate mass of ccl4
using a solution contains 10 ammonium by mass and hasnbsp density 099 gcm-3 determinenbsp hydroxyl and hydrogen ion concentration in this solution
calculate the molecule weight of the liquidnbsp if 231grams of the vapor of a volatile liquid is able to fill a 498-ml flask at temperature of 100
an unknown mass of each of the given substances 1sand tf704 c2pyrex glasstf676 c3watertf559 c 4ethanol tf459 c initially at 190 degrees celsius
freezing point ofnbsp pure 2-methyl-2propanol is noted 2550c however it absorbs h2o as an impurity on exposure to humid air determine how many
given that the density of a given solid and liquid of molar mass 1472 gmolnbsp 9926 kg m-3 and 9334 kg m-3 at its normal melting temperature of
blood has normal glucose levels varies from 70 to 110 mg glucose per 100 ml of blood brain damage may occur if the level falls too low there can be
if equal concentrations of acrylonitrile c 3h 3n and methyl methacrylate c5h8o2 were each polymerized at temperature of 60 degree celsius with equal
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