help with cation exchange capactity question 16. Suppose that 1 g of dry soil is mixed...

Question

Question

help with cation exchange capactity question

16. Suppose that 1 g of dry soil is mixed vigorously with 100 ml of 0.5 ammonium acetate solution. The soil and water mixture

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

To calculat CEC Calculate the Cancentratton of each cadtcn amd the Contemtoatton of each cation multiply amd then multiply th (to009) CIK0 Cmo (5.6 0.56 Cmol Quum Codtons CEC ofall three The sum (12.-9 Cmol CEC 6.3 Cmolkg CEC

Add a comment

Answer 2

Similar Homework Help Questions

help with cation exchange capactity question 16. Suppose that 1 g of dry soil is mixed...

help with cation exchange capactity question 16. Suppose that 1 g of dry soil is mixed vigorously with 100 ml of 0.5 ammonium acetate solution. The soil and water mixture is filtered to remove the soil. The concentrations of calcium, magnesium and potassium ions are as follows: [Ca225.8 ug/ml [Mg2-3.4 ug/ml [K*] 2.2 ug/ml The concentration of Na* was below the detection limit What is the cation exchange capacity (CEC) of the soil (in units of cmol kg1)? Assume a...
a) Suppose that 1 g of dry soil is mixed vigorously with 100 mL of 0.5 M ammonium acetate solution. The soil and water mixture is filtered to remove the soil. The concentrations of calcium, magn...

a) Suppose that 1 g of dry soil is mixed vigorously with 100 mL of 0.5 M ammonium acetate solution. The soil and water mixture is filtered to remove the soil. The concentrations of calcium, magnesium, potassium, and hydrogen ions in the filtrate are measured. The concentrations of the cations found in the extraction solution are as follows: Ca2+-25.8 μg/mL, Mg2 3.4 ug/mL, K -2.2 ug/mL. Calculate the CEC of the soil. This is the same problem from Discussion 2....
Please Answer: CALCULATION QUESTION 1 (A) Calculate the number of cmol of Al3+ cations needed to...

Please Answer: CALCULATION QUESTION 1 (A) Calculate the number of cmol of Al3+ cations needed to replace 10 cmolc of Ca2+ by cation exchange in a soil. (B) How many grams of Al3+ does this correspond to? (you’ll need the atomic weight of Al, which is 27 g/mol, to calculate this) CALCULATION QUESTION 2 A soil sample (500 g) contains the following amounts of exchangeable cations: Ca2+= 9 cmolc , Mg2+= 3 cmolc , K+= 1 cmolc , Al3+= 3...

Soil testing laboratories usually estimate cation-exchange capacity (CEC) as the sum of Ca2", Mg, and K...

Soil testing laboratories usually estimate cation-exchange capacity (CEC) as the sum of Ca2", Mg, and K displaced during extractions with neutral, 1 N ammonium acetate (NH 0Ac), which are performed primarily to test for available K. The following data were thereby obtained for three contrasting soils, but have been reported as pounds per acre for each of the three elements, assuming the conventional weight of 2 million pounds for an acre of soil 6 inches deep. Soil A 4004 381...
What is the cation exchange capacity (in meq/100 g) and base saturation (in %) of a...

What is the cation exchange capacity (in meq/100 g) and base saturation (in %) of a 200 g soil sample that contains the following amounts of exchangeable cations: 360mg Ca 2+, 46mg Na+, 312mg K+, 216mg Mg2+, 100mg Al3+, and 20mg H+. Use the following molar weights: Ca2+= 40.1 g/mol; Na+= 23.0 g/mol; K+= 39.1 g/mol; Mg2+= 24.3 g/mol; Al3+= 27 g/mol and H+ is 1 g/mol.
Objective To extract essential oils and other natural products from the leaves of mentha spicata L....

Objective To extract essential oils and other natural products from the leaves of mentha spicata L. . Reactions Not applicable Procedure 1. Weigh 1.0 g of leaves and place them in a glass mortar. Grind the material until a more or less homogenous mass is obtained. Transfer the ground material into a 100 mL beaker, add a stir bar and 10 mL of water and 10 mL of diethyl ether. Cover the beaker with a watch glass and stir vigorously for 10 minutes...

For part 1 of this lab) I collected a soil sample from my campus Part 2)...

For part 1 of this lab) I collected a soil sample from my campus Part 2) Tested bacteria initial viability Part 3) DNA extraction Part 4) DNA quantification by Nanodrop Part 5) Sample sequencing Part 6) PCR amplification Part 7) Gel electrophoresis Part 8) DNA sequence data analysis (sent sample to another lab) Directions for Part 3 DNA extraction are in the attached image QUESTIONS REGARDING PART 3 (DNA extraction) 1) What type of conclusions can be made from initially...
I could really use help for question 1 and 2! Thank you in advance :) MATERIALS...

I could really use help for question 1 and 2! Thank you in advance :) MATERIALS AND EQUIPMENT . 1 - pH probe w/LabQuest . 1 - 100 ml beaker . 1 - stir bar • 1 - stir rod • 3 - medium beaker • 2 - 30 mL beaker CHEMICALS • sodium carbonate, NaHCO3 • 0,1 M hydrochloric acid, HCI • 0.85% lactic acid • dry ice • ammonium chloride, NHACI assigned acid assigned conjugate base • 6...
Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you...

Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...

Can someone help me finish my table? all the inforamtion is there. molarity of HCL =0.5M g...

can someone help me finish my table? all the inforamtion is there. molarity of HCL =0.5M grams of borax = 18.41g the Relationship between Thermodynamics and Equilibrium 21 Complete the data table for each temperature studied. Beaker Label 42 °C 45 °C 36 ° C 39 °C 33 °C 2EC 138℃-2°C| ーでー 46℃ Temperature reading (C) Absolute temperature (K) 1/T Final buret reading Initial buret reading Volume of HCI Moles of H+ Moles of B Os(OH)2 Molarity of B,Os(OH)2 306.230.2...

help with cation exchange capactity question 16. Suppose that 1 g of dry soil is mixed...

Homework Answers