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For equal moles of CaCl2 as well as Fe(NO3)3 dissolved in the same volume of distilled water how do you expect the conductivities of each solution to compare? Make clear our reasoning
A solution is prepared by dissolving 15.0 g of NH3 in 250 g of water. the density of the resulting solution is 0.974 g/mL. The molarity of NH3 in the solution is
Calculate the volume of carbon dioxide at 20.0 degrees C and 0.910 atm produced from the complete combustion of 5.00 methane. Compare your result with the volume of CO2 produced from the complete combustion of 5.00 kg of propane (C3H8).
a stock solution is prepared by adding 15 ml of 2.5 m bacn2 to enough water to make 20 ml. what is the cn-
A piece of metal of mass 27 g at 99?C is placed in a calorimeter containing 45.1 g of water at 21?C. The final temperature of the mixture is 38.7?C.
a rotary drum filter with a filter area of 200 m2 and a vacuum pressure of 75 kpa is to be used to remove cells from a
What scientific principle or law is used in the process of balancing chemical equations. Define the terms limiting reactant and excess reactant.
an object made of aluminum has a mass of 8.37 gram. when it was placed in a graduate cylinder containing 20.0 milliter of water, the water level rose to 23.1 milliter. calculate the density and specific gravity of the object.
The pH of a solution of a weak acid is found to be 4.625. If 10.000 mL of this solution is titrated with 7.3990 mL of 0.012500 M NaoH, what is the Ka of this acid
a sample of he gas 3.0 l at 5.6 atm and 25degc was combined with 4.5 l of ne gas at 3.6 atm and 25degc at constant
A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 29.0°C. What was the final temperature?
How many moles of table salt (NaCl) are in a box that has 117 grams of salt? (atomic mass of Na = 23.0; atomic mass of Cl = 35.4)
Find the hydronium ion concentration,the hydroxide ion concentration and the pH of a 0.001 M solution of HCI,if alpha=1 2) Which of salts hydrolize in aqueous solution : CaCO3,Pb(NO3=2,Al2S3?
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