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Calculate the pH of the buffer solution that results from mixing 65.0 mL of 0.15 M HCHO2 with 40.0 mL of 0.13 M NaCHO2. The Ka for HCHO2 is 1.8 x 10^-4.
calculate how many liters of seawater are needed to produce 79.1 L of fresh water at 20 °C with an applied pressure of 50.0 bar.
A student in lab has 2.00 g of pure N2 in 0.360 g pure H2. The reaction happens following this equation:
A mixture of CaCO3 and CaO weighing 0.680 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.489 g.
A 60.00 mL sample of 0.075 M benzoic acid was titrated using 0.050 M KOH. What will be the pH at the equivalence point in the titration.
If you have 24.0 g of NaCl dissolved in 306 mL, what is the molarity of the solution
How many molecules of ice at 0 degrees celsius can be melted from the complete transfer of the heat involved when 25.6 Grams of nitrogen is reacted with 34.5 L Of hydrogen gas at STP.
What mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at 295 K? (Assume the density of the solution to be equal to the density of the solvent.)
32.5 kJ/mol°GD Muscles are powered by the hydrolysis of Adenosine tri phosphate determine Keq for this reaction
An automobile gasoline tank holds 21kg of gasoline. When the gasoline burns, 86kg of oxygen is consumed and carbon dioxide and water are produced.
What is the boiling point of the solution produced by adding 363 g of ethylene glycol (molar mass = 62.1 g/mol) to 1.5 kg of water? For each mole of nonvolatile solute, the boiling point of 1 kg of water is raised 0.51°C.
1) Suggest a reason why the starting material (trans-1,4-diphenyl-2-butene-1,4-dione) should be recrystallized prior to use in the photochemical isomerization of an alkene.
When hydrochloric acid comes in contact with potassium permanganate, what dangerous chemical is released?
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