A water sample was analyzed for the total hardness through the reaction between the sample and EDTA. The data obtained from the experiment are presented below (MM CaCO3 = 100.0869 g/mol): What is the ppm? 10,290 ppm 12,390 ppm 11,270 ppm 990 ppm

Q: 1. In a reaction involving the iodination of acetone, the following volumes were used to make up the…

A: Molarity of acetone = 4.0 MMolarity of HCl = 1.0 MMolarity of I2 = 0.0050 M

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A: Temperature = Molarity of NaI = 0.19 M

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A: MgSO4 = 6.25 ml EDTA = 0.50 ml  Water = 243.25 ml

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Q: Calculate the MW from the average EM.  MW (g/mol) = n(eq/mol) x EM (g/eq) where n is the number of…

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Q: In the titration of 25.00 mL of a water sample, it took 20.690 mL of 4.050x 10−3 M EDTA solution to…

A: Number of moles of EDTA is determined as follows,

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A: Concentration of stock solution=0.174 g10 mL=0.0174 g/mL

Q: 20. Assume you are using 0.1 M EDTA to titrate a 0.2 M Ca* solution (25 mL) at pH 10.0. V molarity…

A: Calculation of no. of mol of Ca2+: n=Molarity×Volume=0.2 mol/L×25×10-3 L=5×10-3 mol Calculation of…

Q: 5 x 10-14 of the following cases does have the lowest solubility f 1.6 x 1019 u(OH)2 in a buffer at…

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Q: QUESTION 1 A 15-ml sample of borax solution was titrated with 0.482-M HCI. The endpoint was reached…

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Q: on 13 óf 43 Consider the neutralization reaction 2 HNO,(aq) + Ba(OH), (aq) → 2 H,O(1) + Ba(NO,),(aq)…

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Q: In a reaction mixture 20.0mL of 0.010M KI, 10.0mL of 0.040M KBrO3, 10.0mL of 0.040M Na2S2O3, and…

A: From the total volume , we can calculate the following concentrations

Q: 1. In a reaction involving the iodination of acetone, the following volumes were used to make up the…

A: Molarity of a substance is defined asis the unit of concentration which is defined as the moles of…

Q: How many moles of SrSO4 will dissolve in 4.0 x 102 mL of 0.060 M Sr(NO3)2? The Ksp of SrSO4 is 3.2 x…

A: We will dissociate SrSO4 and then find solubility of it. Then calculate moles of it.

Q: According to the following figure, an adequate end-point for the titration of calcium with EDTA…

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Q: You titrate 50.00 mL of hard water with 14.86 mL of 0.0100 M EDTA solution. How many moles of Ca²+…

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Q: Calcium in a 50-L serum sample is titrated with 1.85 x 10-4 M EDTA solution, requiring 2.5 mL. What…

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Q: As part of a geological team that studied a local cave, you brought with you a bunch of 1.00 g rock…

A: The reaction taking place will be, MgOH2+EDTA4-  → MgOH2EDTA4- Calculate number of moles of EDTA: 1…

Q: If it takes 12.24 mL of 1.0 M HCl solution to titrate 5.0 mL of saturated borax solution, what is…

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A: The equation representing titration of Ca2+ ion with EDTA:Ca2+ (aq) + EDTA4- (aq)  Ca(EDTA)2- (aq)

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Q: Determine

A: Ksp is the solubility product which is defined for solid

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Q: • An unknown acid (HA) was titrated with NaOH(aq). •The following titration curve was constructed…

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Q: Solid Ag2CO3 is added to water until no more solid Ag2CO3 dissolves. What is the silver ion…

A: Ksp for Ag2CO3 = 8.39 × 10-12  Concentration of silver ion = ?

Q: Consider the titration of 150.0 mL of a 0.225 M solution of (C2H5)NH with 0.45 M HCl(aq).  Kb= 4.3…

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Q: Reaction 15 min. (PhhP. (Ph):P=0

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Q: 3. Solid AGNO3 is slowly added to a solution that is 0.0010M in NaCl, NaBr and Nal. Calculate the…

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A: As per the rule, observation for only the first three cations can be given.

Q: The Ksp of Mg(OH)2 was determined from the following data: 0.0504 L of Mg(OH)2 solution was titrated…

A: Given, Volume of Mg(OH)2 = 0.0504 L Volume of HCl = 0.02474 L Concentration of HCl = 0.534 M

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