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1. Sodium sulfate is a compound used in many soap or detergent products. Calculate the number of moles of solute needed to make 8.0 mL of 2.22 mol/L sodium sulfate solution.
2. Calcium nitrate is sometimes used in regenerable cold packs. Calculate the mass of solute needed to make 75.0 mL of 2.35 mol/L calcium nitrate solution.
Determine the required collector surface area for worst case and average conditions. -The resulting system coefficient of performance.
An unknown salt is either NaF, NaCl or NaOCl.When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08. What is the identity of the salt?
calculate the pH of the solution that results when 40.0 mL of 0.100 M NH3 is mixed with 20.0 mL of 0.200 M NH4Cl solution.
Consider the titration of a 20.0 mL sample of 0.105 M HC2H3O2 with 0.130 M NaOH What is the pH at the equivalence point
Sulfuric acid has a dual role in the chemistry. What are its two roles in the recovery of copper metal
solution of a weak monoprotic acid, pKa 2.346, is mixed with 37.3 ml of 0.0832M sodium hydroxide. What is the pH of the resulting not a simple buffer solution?
if you lived in the mountains where the atmospheric pressure is 685 mm Hg, what would the partial pressure of oxygen and of nitrogen be ?
what purpose does a 1-cm layer of anhydrous sodium sulfate in the apex of the funnel serve while transferring the dichloromethane extract into the round-bottom flask?
Explain what are the concentrations of OH- as well as H+ in a 0.00066 M solution of Ba(OH)2 at 25C. Presume complete dissociation.
It is found that a certain plasma etch chemistry in a certain RIE etch system pro-duces vertical sidewalls with zero etch bias when etching a particular film.
Can anyone help me with the reaction sequence AND stepwise mechanism for the mono-nitration of phenyl methyl ketone
Balance the chemical equation given below, and determine the number of grams of MgO needed to produce 15.0 g of Fe2O3. ___ MgO(s) + ___ Fe(s) ? ___ Fe2O3(s) + ___ Mg(s)
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