Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

problem 1:

a) Distinguish between soil horizon and soil profile. prepare their relationship to the pedon?

b) How are the metamorphic rocks developed? Describe with the help of an illustration.

c) How does soil aeration influence plants? Describe the change in soil color due to a change in oxidation state of metals present in soil.

d) Compute the percentage pore space in soil with bulk density 0.99 Mg/m3 and a particle density of 1.9 Mg/m3.

problem 2:

a) What do you meant by nutrient availability in the soil? How is it associated to the soil fertility evaluation? Describe the variation in availability of nitrogen and phosphorous in a given pH range.

b) In what manner is the high heat capacity of water useful for the living world?

c) Illustrate the ways in which water is wasted in domestic supply system in cities of developing countries.

problem 3:

a) Describe how by adjusting plant nutrients water efficiency can be enhanced for agriculture.

b) In a water sample the concentration of dissolved oxygen is found to be 1.53 10-3 M.
Express the dissolved oxygen content in ppm unit in the sample. The molar mass of O2 is 32 g mol-1

c) What is the chemical reason for the foul smell around a water system that has undergone rigorous biodegradation? Give the relevant chemical equations for their formation.

d) What could happen if Ca Mg and Cu would be present in surplus in drinking water?

problem 4:

a) describe various regions of atmosphere on the basis of distribution of temperature. What do you mean by the term lapse rate?

b) What are primary and secondary meteorological parameters? List all of them. What do you understand by the term temperature inversion?

problem 5:

a) What are the anthropogenic pollutants? What is the basic difference between primary and secondary pollutants? Give illustrations of each.

b) What are the parameters for classification of quality of air?

c) Discuss the technique of aeration for the treatment of dairy waste. What are the problems related with it?

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M92629

Have any Question? 


Related Questions in Chemistry

What is the molarity of 200 l naoh solution prepared from

What is the molarity of 2.00 L NaOH Solution prepared from the dilution of 50.00 mL of 19.1 M NaOH?

Write a reserch paper on gas chromatographythis is a 10

Write a reserch paper on Gas chromatography. This is a 10 pages research paper that should include an introduction on chromatography, principles of separation, type of columns, resolution, detection methods and applicati ...

Assume that coal is pure carbon with a density of 1280 kgm3

Assume that coal is pure carbon with a density of 1280 kg/m3 and that the particle is spherical with an initial diameter of 0.015 cm. Air exists several diameters away 1) Nco= ____Noxygen 2) The more fraction of oxygen a ...

An empty 100-ml measuring cylinder weighs 132456 gnbsp when

An empty 100-mL measuring cylinder weighs 132.456 g.  When filled with rice to the 100-mL mark it weighs 220.345 g.  After water has been added to fill the spaces between the grains, the weight is 250.123 g.  What is the ...

Potassium sulfate is commonly used in fertilizers an

Potassium sulfate is commonly used in fertilizers. An agricultural researcher in alaboratory measures and weighs a 150.0-g sample of potassium sulfate for herexperiment. The solid sample is dissolved in enough water to m ...

1nbspcalculatenbspthe grams of na2co3nbsprequired to

1. Calculate the grams of Na 2 CO 3   required to prepare 250.0 mL of 0.375 M Na 2 CO 3  solution. 2. The reaction of sodium carbonate with hydrochloric acid produces carbonic acid and sodium chloride. If 25.00 mL of O.0 ...

If you eat a 48 g serving rice every fourth day and you

If you eat a 48 g serving rice every fourth day and you weigh 75 kg, what is your dose of inorganic arsenic (in µg per kg body weight per day) if the rice contains 386 µg kg -1 of total arsenic, 45% of which is inorganic ...

1 what is the mass of 38 molecules of so3nbspin g2 what

1) What is the mass of 38 molecules of SO 3  in g? 2) What volume in L of chlorine at 30 o C and 743 torr is required to react completely with 4.76 g aluminum: 2Al(s) + 3Cl 2 (g) → 2AlCl 3 (s) Calculate the moles chlorin ...

A 400g sample of an ideal gas occupies 124l at 23 degrees

A 4.00g sample of an ideal gas occupies 1.24L at 23 degrees Celcius and 1.12bar. What will be its volume at 14 degrees Celcius and 1.50bar?

Pyridine c5h5n is a weak base pkb 874 with an unpleasant

Pyridine (C5H5N) is a weak base (pkb = 8.74) with an unpleasant, sweet fishy odour. In a titration, 175.0mL of pyridine solution required 13.6 mL of 0.3250M HCl to reach the equivalence point. a) Calculate the pH of the ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen