The effluent from the column required 15.00 mL of 0.1000 M NaOH to neutralize. a) Write the net ionic reaction equation that occurs when the effluent is neutralized by the NaOH. For your convenience, the molecular equation is given below. Assume HX is a STRONG acid. HX(aq) + NaOH(aq) → NaX(aq) + 2H2O(I) How many moles of Htlag) are present in the effluent? Reference "Volumetric Analysis"

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter14: Chemical Equilibrium
Section: Chapter Questions
Problem 14.97QE: According to the Resource Conservation and Recovery Act (RCRA), waste material is classified as...
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Prelab Question #1:
A 10.00 ml sample of wastewater containing copper ion (Cu2*) was put on an ion exchange
column.
2 (resin•SO3)H + Cu2+ > Cu(resin•SO3)2 + 2H*
The effluent from the column required 15.00 ml of 0.1000 M NAOH to neutralize.
a) Write the net ionic reaction equation that occurs when the effluent is neutralized by the
NaOH. For your convenience, the molecular equation is given below. Assume HX is a
STRONG acid.
HX(aq) + NaOH(aq) → NaX(aq) + 2H20(I)
b) How many moles of H*(aq) are present in the effluent? Reference "Volumetric Analysis",
Chapter 4, Section 4.10 of the text
c) Calculate the molarity of the copper ion (Cu2*) in your wastewater sample. Hint: consider
the mole ratio between Cu²2+ in the wastewater sample and H* in the effluent as
represented in the equation
2 (resin•SO3)H + Cu?* → Cu(resin•SO3)2 + 2H*
Prelab Question #2: (See Special Project section “★Why are copper patinas colored?")
Complete this sentence: "Materials appear colored because they.."
Transcribed Image Text:Prelab Question #1: A 10.00 ml sample of wastewater containing copper ion (Cu2*) was put on an ion exchange column. 2 (resin•SO3)H + Cu2+ > Cu(resin•SO3)2 + 2H* The effluent from the column required 15.00 ml of 0.1000 M NAOH to neutralize. a) Write the net ionic reaction equation that occurs when the effluent is neutralized by the NaOH. For your convenience, the molecular equation is given below. Assume HX is a STRONG acid. HX(aq) + NaOH(aq) → NaX(aq) + 2H20(I) b) How many moles of H*(aq) are present in the effluent? Reference "Volumetric Analysis", Chapter 4, Section 4.10 of the text c) Calculate the molarity of the copper ion (Cu2*) in your wastewater sample. Hint: consider the mole ratio between Cu²2+ in the wastewater sample and H* in the effluent as represented in the equation 2 (resin•SO3)H + Cu?* → Cu(resin•SO3)2 + 2H* Prelab Question #2: (See Special Project section “★Why are copper patinas colored?") Complete this sentence: "Materials appear colored because they.."
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