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What is effective nuclear charge? How does it affect the size of an element's atomic radius? (YOUR ANSWER MUST BE COMPLETE AND THOROUGH TO RECEIVE FULL CREDIT)
sample of unknown HCL solution reacts completely with Na2CO3 to form 15.1g CO2, What was the concentration of the HCL solution?
the following reaction were found to be PA = 4.00 atm, PB = 8.40 atm, PC = 5.70 atm, and PD = 1.60 atm. What is the standard change in Gibbs free energy of this reaction at 25 °C.
Does either country have absolute and/or comparative advantage in any product?Provide support for your answer by computing the opportunity costs for both products in bothcountries.
For the reaction:NO(g) + 1/2 O2(g) → NO2(g) ΔH°rxn is -114.14 kJ/mol. Calculate ΔH°f of gaseous nitrogen monoxide, given that ΔH°f of NO2(g) is 33.90 kJ/mol 181.9 kJ/mol
Benzoic acid, C6H5COOH, is sometimes used to for the standardization of solutions of bases. A 1.722 g sample of benzoic acid reacts with 26.47 mL of a NaOH solution. What is the molarity of the base solution
at a given temperature the equilibrim constant for the system studied in this experiment is 1.4e2. suppose 100.0ml of
find the empirical formula for the following compounds given the following information.find the empirical formula for
A 25 ml sample of .30M sodium acetate is titrated with .3M HCl. What is the pH after addition of 12.5 ml of HCl. (Ka= 1.8e-5)
Glycine has the structure NH2CH2COOH. it can lose a proton from the carboxyl group and form chelate rings bonded through both the N and one of the O atoms. Draw structures for all possible isomers of tris(glycinato)cobalt(III).
Therefore an answer in U.S. customary units, such as miles per hour would not be accepted as correct. A car traveling with constant speed travels 150 km in two hours. What is the speed of the car?
The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0031 M. Calculate the number of molecules inside the cell, which is 3.5 µm long and 1.4 µm in diameter.
A basketball is inflated to a pressure of 1.50 atm in a 20.0C garage. What is the pressure of the basketball outside where the temperature is -5.00C.
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