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if 510 grams of sodium hydroxide reacts, how many grams of magnesium nitrate are needed for complete reaction?
A rigid plastic container holds 1.00 L methane gas at 630 torr pressure when the temperature is 20.3°C. How much more pressure will the gas exert if the temperature is raised to 44.3°C?
For 550.0 mL of pure water, calculate the initial pH and the final pH after adding 0.010 mol of pH
A solution of 0.312 M KOH is used to titrate 15.0 mL of a H2SO4 solution. write the balanced chemical equation. what is the molarity of the H2SO4 solution if 28.2 ml of the KOH solution is required?
What is the resulting temperature when 35 g of water at 75C is mixed with 15 g of water at 15C? (The specific heat of water is 4.184 J/g x C.)
what is the maximum amount of P4S10(444.545 g/mol) which could be formed from 17.12 g of P4 (123.895 g/mol) and 0.137 mol of S8 (256.52 g/mol).
If a sample of 0.230 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
a buffer is prepared by mixing .200 mole of formic acid with .300 mole of sodium formate in a volume of 200 ml what is the initial ph.
What is the pH of the solution which results from mixing 25 mL of 0.30 M HF(aq) and 25 mL of 0.30 M NaOH(aq) at 25 ºC? (Ka of HF = .00072)
What pressure would have to be applied to steam at 365°C to condense the steam to liquid water (H vap = 40.7 kJ/mol)?
Calculate the pH during the titration of 100.0 mL of 0.200 M HCl with 0.400 M NaOH. First what is the initial pH (before any NaOH is added
Under these conditions, how long would it take for a sample to decompose to 25% of it original concentration?
at constant volume, the initial pressure of a substance is 0.63 atm and the initial temperature is 283 k.calculate the pressure of the substance at 295 k.
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