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What are the systematic names of these ?
1. CuI (s)
2. CoF2 (s)
calculate the ph of an aques (buffered) solution with a volume of 400ml which contains 35.8 g of nh4cl, ammonium chloride, and 23.2 g of ammonia, nh3, (kb= 1.8x10^-5
a Oxygen is a common oxidizing agent in nature. What changes in the oxidation number of oxygen must occur if it is to be an oxidizing agent? explain
A set of two gas bulbs, with volumes of 500 mL and 300 mL, are connected by a closed stopcock. The 500 mL bulb contains 450 torr of Ne gas, and the 300 mL bulb contains 150 torr of Cl2 gas
how does the attractive force that the nucleus exerts on an electron change with the principal energy level of the electron?
As it expands, it does 135.8 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas?
What accounts for the structural differences between diamond and graphite since both have the same atomic composition
What is the de Broglie wavelength in cm, of a 11.9 g hummingbird flying at 1.12 102 mph? (1 mile = 1.61 km.)
A calibrated flask was filled to the 25.00 {\rm mL} mark with ethyl alcohol. By weighing the flask before and after adding the alcohol, it was determined that the flask contained 19.7325 {\rm g} of alcohol
The heat of neutralization of HCl by NaOH is H°rxn = -56.2 kJ/mol. How much heat is released when 125 mL of 1.750 M HCl is mixed with 195 mL of 0.667 M NaOH.
Calculate the pH of the solution that results from each mixture. 160.0 mL of 0.27 M HF with 230.0 mL of 0.30 M NaF. Please show the steps. How do you find the pKa value?
A student heats 5.128 g sodium bicarbonate to completely decompose the sample to sodium carbonate. 3.2349 g of sodium carbonate was produced. Calculate the atom economy of this reaction.
A 1.43-L flask is filled with propane gas (C3H8), at 1.00 atm and -23.0°C. What is the mass of the propane in the flask?
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