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In an experiment, a student gently heated a hydrated copper compound to remove the water of hydration. The following data was recorded:
1. Mass of crucible, cover, and contents before heating-23.54g2. Mass of empty crucible and cover-18.82g3. Mass of crucible, cover, and contents after heating to constant mass-20.94g
Calculate the experimental percent of water in the compound.
calculate the ph of a 0.070 M sodium acetate CH3COONa and 0.020M acetic acid CH3COOH buffer The ka is 1.7x10^-5
how many grams of Ni(OH)2 are produced from the reaction of 35.0 mL of a 1.75 M NaOH solution ans excess NiCl2? c)what is the molarity of 30.0 mL of a NiCl2 solution if this volume of solution reacts completely with 10.0 mL of a .250 M NaOH soluti..
calculate the final concentration of each of the follwing 0.50 l of a 4.0 m hno3 solution is added to water so that the
an inert gas has a volume of 941 ml at temperature 28 oC and pressure 675 Torr. What volume does the gas occupy at standard ambient temperature and pressure (SATP)?
Important information about Heat of Reaction, The combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) --> 8CO2(g) + 10H2O(l) deltaHrxn= -5314kJ
One beaker contains pure water, another contains salt water, and another contains sugar water. How can you tell the which beaker is Which?
A solution of a weak acid, HA, is prepared by dissolving 4.8 mmol of HA in 10.0 liters of a solution.The following values of absorbances were measured in a 1.0 cm cell in various buffers.
what is the final temperature of 100 g of water, initially at 20 Celsius , to which 1000 calories (cal) are added
It would be possible for the carbocation to proceed to a product other than the alcohol discussed in the Experimental writeup without changing out kinetics calculation. Write the structure of another organic product
Ignore the volume of water, and determine the final volume of the reaction mixture at 1.00 atm and 298 K if the reaction goes to completion.
A canister is filled with 310 g of ice and 100 g. of liquid water, both at 0 C . The canister is placed in an oven until all the has boiled off and the canister is empty.
A particular sample of red brass consisting of 81.0% Cu and 19.0% Zn by mass has a density of 8780 kg/m^3. What is the molality of Zn in the solid solution?
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