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A 26.0 g sample of chromium (Cr) reacts with sulfur (S) to form 50.0 g of chromium sulfide. Determine the formula for the chromium sulfide and the charge on the chromium ion.
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4, 0.1 M NiF2, 0.2 M Rb2CO3, 0.01 M Sr(OH)2, , 0.03 M ScBr3.
to the alchemists gold was the material representation of purity. it is a very soft metal that can be hammered into
what is the concentration of the h2so4 if a chemist titrates 300.0 ml of sodium hydroxide naoh with a 5.0 m solution of
Zn(s) + 2 HCl(aq) H2(g) + ZnCl2(aq) When 25.0 g of Zn reacts, how many L of H2 gas are formed at 25 °C and a pressure of 854 mmHg?
Problem- In the synthesis of Nylon-6, 6 (polymer) from adipoyl chloride (monomer) and 1,6-hexanediamine (monomer), why isn't it possible to calculate a theoretical yield
Use the angular overlap method to calculate the energies of both ligand and metal orbitals for trans {Cr(NH3)4Cl2}+, taking into account that ammonia is a strong sigma donor ligand than chloride , but chloride is a stronger pie donor. use the 1 an..
What are the initial and final pH's? What would be the pH if the same amount of HCl were added to the 125 mL of pure water? The Ka of acetic acid is 1.8*10^-5
Is the amount of sodium bicrbonate sufficient to react with benzoic acid. The amount of Benzoic Acid in ex. 1 is 0.060 Grams
Determine the number of moles in isooctane required to produce 2.550kj of heat in the reaction below:
Calculate final pH resulting from the addition of 5.0 mmol of strong acid to the buffer solution made from 0.150 L of 0.50 M NH4Cl and 0.100 L of 0.25 M NaOH. pKa(NH4+)=9.25.
Why do we need fats in our diet? What components of our cells and tissues require fats and cholesterols? Are there "good fats" and "bad fats" like there are "good cholesterol" and "bad cholesterol"? Compare and contrast the differences and sour..
Name three factors that affects the rates of reaction based on collision theory.
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