need to ASAP, please thanks xoxo
Suppose you have 50.5 mL of a solution of H3PO4. You titrate it with a 0.10 M solution of Sr(OH)2 and use 15.3 mL to reach the endpoint. What is the concentration of H3PO4? ? M What was the pH of the original H3PO4 solution?
A —> 2B Rate B= _______ M/s Chart attached in phone photo**
For a chemistry paper, I had the idea try to extract and measure the vitamin a in acai. However, I don’t know how to do this or if this is plausible with school lab equipment. My teacher didn’t know either. Help!
[ Chemistry ] Open Question : I have two questions regarding my organic chem homework. Please help!!?
1) Using principles of intermolecular forces and crystal structure in your answer, explain the molecular basis for the melting behavior of the fluorenol/fluorenone mixture relative to that of the pure compounds. 2) Using solubility principles, explain the role of the ethanol solvent in the recrystallization procedure. Similarly, what is the role of water? (“Water makes…
The original question is: Balance the following chemical equation: Rb(s) + RbNO3(s) → RbO(s) +RbO(s) + N2(g) I put: 4RbO(s) + 2RbNO3(s) → 6RbO(s) + N2(g) and it said I was wrong because RbO is incorrect because rubidium forms +1 ions and oxygen forms -2 ions. I don’t get it???
calculate the standard enthalpy of combustion of solid benzoic acid, C6H5COOH, into liquid water and gaseous carbon dioxide. Answer options: A) -2833 kJ mol-1 B) 5667 kJ mol-1 C) -3603.5 kJ mol-1 D)-294.2 kJ mol-1