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A 300 mL stock solution contains 0.9 M Ca(CN)2. When 100 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
The density of palladium(Pd) is 12.0 g/mL at 20 degree Celsius temperature and the density is 11.0 g/mL 1550 degree Celsius temperature . What is the change in volume (V) if tempreture raises of 4.21 kg Pd from 20°C to 1550°C.
for a certain change the value of U is -2.37 kJ. During the change, the system absorbs 650 joules. how much work did the system do.
In a manometer the mercury level at the open end of the tube is 215 mm higher than at the closed end of the tube. If the atmospheric pressure is 1 atm.
Consider the following reaction: SO2Cl2 (g) SO2 (g) + Cl2 (g). K = 2.99*10^-7 at 227 degrees celsius. If a reaction mixture initially contains 0.159 , what is the equilibrium concentration.
Mesitylene is a compound consisting only of C and H. If you burn 0.115 g of the compound, and find that it produces 0.379 g of CO2 and 0.1035 g of H2O.
Determine the volume of CO 2 at a temperature twenty two degree Celsius and a pressure of 781 mmHg could be absorbed by 327 grams of Lithium hydroxide LiOH?
Write a balanced molecular equation for these ten combinations.
At room temperature (about 20degree C) milk turms sour in about 64 hours. In a refrigerator at 3 degree C, milk can be stored for about three times as long before turning sour.
Determine the enthalpy for the given reaction as CS2
The _______ of a titration occurs when the indicator changes color.
Calculate the reaction quotient Qc and find out at which temperature and
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
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