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Zinc ion reacts with excess CN? To form a colorless complex ion, Zn(CN)42, which has a formation constant Kf = 4.2x10^19. Compute the concentration of Zn2+ in a solution prepared by mixing equal volumes of 5.0x103 M Zn(NO3)2 and 0.10 M NaCN. Ignore the hydrolysis of CN(aq).
Separation of acetone from water by using MIBK - How much MIBK must be used if the final acetone concentration in the water-rich phase is 5 wt%?
the air feels cool because heat is required to evaporate the water from our skin. How much heat is required to evaporate 20.6 g of water? The enthalpy of vaporization of water is 44.0 kJ/mol.
determine the molar ratio of nabh4 to benzophenone that you actually used in the experiment. why do you think that it
Using data from thermodynamic quantities at 298.15K, calculate deltaG^degree for the following reactions. Indicate if each reaction is spontaneous at 298K under standard conditions.
Oxygen gas can be generated by the decomposition of potassium chlorate according to the following equation: 2KClO3(s) = 2KCl(s) + 3O2(g). How many liters of oxygen at STP will be produced when 0.216 kg of KCl is also produced
Which of the following could be the results of the decomposition of the other sample, being consistent with the law of constant composition (also called the law of definite proportions or law of definite composition)?
A typical automobile gets 30 miles per gallon of gas and drives 12,000 miles every year. Assuming that octane (C8H18, density 0.7025 g cm-3) is a principal component of gasoline
What is the equation for conversion 4-methylcyclohexene into a mixture of 4 isomers of C7H12 using sulfuric acid
water and diethyl ether are immiscible liquids. charged compounds dissolve in water and uncharged compounds dissolve in
The conversion of methane to ethane is done by reacting the methane with oxygen and it produces water as well as ethane. write the equation and calculate K for the reaction at 25c and 500c. Explain how the reaction is an example of driving a non-s..
In combustion studies of H2 as an alternative fuel, you find evidence that the hydroxyl radical (HO) is formed in flames by the following reaction. H(g) + 1/2 O2(g) HO(g)
the mass natural abundance of the isotopes h and d are 99.985 and 0.015 respectively. the mass natural abundance of
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