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a solution contains 4.00g NaOH, 5.61g KOH, and 1.03g RbOH in 90.0g of H2O. The solution has density of 1.08g/mL. What is the molality of OH?
How many grams of CH4 is needed to produce 49.0 g CHCl3? CH4(g) + 3 Cl2(g)-> CHCl3(g) + 3 HCl(g)
How much heat is required to raise the temperature of a 464g of lead from -20.0C to 219C
if a plant produces 5.06 mol of C6H12O6, how many moles of CO2 are needed?
2KClO3 + heat > 2KCl + 3O2, How many moles of O2 form as 3.0 mol of KClO3 are totally consumed.
calculate the pH of a sodium cyanide solution that is 0.37M NaCN. The Ka for hydrocyanic acid HCN is 4.00E-10.
How many moles of NaOH would be required to completely neutralize 37.22 mL of 0.25M HCl?
Calculate (a) the mole fraction of the solute, (b) the number of moles of solute in the solution, and (c) the molecular mass of the solute.
Suppose a piece of silver jewlery contains 5.00 * 10^22 of silver. how many dozens of silver atoms are in the piece of jewlery.
Calculate the pH of a buffer made with 0.50M phosphoric acid and 0.75M sodium dihydrogenphosphate. Ka = 7.5 x 10-3.
Calculate the resulting concentration of triiodide ions in the acidified solution.
Aluminum metal dissolved in hydrochloric acid as follows: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Volume of acid (HCl) used= 14.1 mL ;Volume of base (NaOH) used= 22.4 mL; Molarity of standard base (NaOH)= 0.20 M What is the molarity of the acid solution?
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