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When a neutralization reaction was carried out using 100 ml of .7890 NH3 water and 100 ml of .7940M acetic acid change in temperature was found to be 4.76 degress C. Specific heat of reaction mixture was 4.104 J g-1 K-1 and density was 1.03 g mL-1. Calorimeter constant was 3.36 J K-1. Calculate change in H neutzn for reaction of NH3 and acetic acid
magnesium oxide decomposes to form 7.29 of magnesium, what mass of oxygen gas is also released in the reaction?
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}. Assume that glycerin is not volatile and dissolves molecularly (i.e., it ..
Write the net redox reaction.
what is the volume of 45.6g of silver if the density of silver is 10.5g/ml?
chloride contain 75.27% ag calculatr the mass of silver chloride requiered to plate 215 mg of pure silver
Write balanced chemical equation and evaluate the molecular weight of the reactants and Calculate the molecular weights of the reactant.
A buffer solution is prepared by placing 5.86 grams of sodium nitrite and 32.6 mL of a 4.90 M nitrous acid solution into a 500.0 mL volumetric flask and diluting to the calibration mark
HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous water
what is the limiting reagent and the volume of CO2 formed when 11 L s2 reacts with 18 L O2 to produce Co2 gas adn SO2 gas at STP
For a reaction in which delta H= -360.1 kJ/mol and delta= - 90.0 J/K*mol, determine the temperature (in *C) below which the reaction is spontaneous.
A 15 gram piece of iron is heated to a temperature of 47.0 ?C and then placed in contact with a 275 g piece of copper at 20.0 ?C (Cp = 25.46 J/mol-?C). What was the final temperature of the two pieces of metal?
Calculate the heat energy released when 10.9 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point.
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