Chemistry, 28.04.2021 01:10 makarockslynn4764
Answer the following for the reaction: 2HCl(aq)+CaCO3(s)→CO2(g)+H2O(l)+CaC l2(aq) What is the molarity of a HCl solution if the reaction of 204 mL of the HCl solution with excess CaCO3 produces 12.4 L of CO2 gas at 725 mmHg and 20. ∘C?
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The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
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Answer the following for the reaction: 2HCl(aq)+CaCO3(s)→CO2(g)+H2O(l)+CaC l2(aq)
What is the mol...
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