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A farmer wants to grow wheat on a sodic soil. The CEC = 30 meq/100g and the ESP = 18%. He needs to reduce the ESP to 6%. Calculate the gypsum required (lbs/A-ft) to amend this soil. What is the minimum quantity of lime the soil must contain to use S as an amendment (express as %CaCO3)? Calculate the quantity of S needed (lbs/a-ft).
A gas-filled balloon having a volume of 5.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth),
How many air molecules are in a 10.0x20.0x10.0 ft room? Assume atmospheric pressure of 1.00atm , a room temperature of 20.0C , and ideal behavior.
what is the effect of soil ph on the available forms of phosphrousp in the soil solutionand the dominant phosphrousp
Determine the limiting, excess reagent & percent yield of the reaction - How much excess reagent is left after the reaction reaches completion?
A chilled carbonated beverage is opened and allowed to warm to room temperature. Will the pH change, and if so, how will it change. loss of CO2 from the beverage (Henry's Law) will result in a decrease in the pH
name and outline the concept which is introduced when more than one valid lewis structure can be drawn for a given
calculate the work in kj when 3.00 moles of hydrogen gas are produced from the reaction of sodium in excess water at
Phosphorous trichloride (PCl3) is produced from the reaction of white phosphorous (P4) and chlorine: P4(s) + 6 Cl2(g) → 4 PCl3(g) . A sample of PCl3 of mass 298 g was collected from the reaction of 75.37 g of P4 with excess chlorine.
what is heat of vaporization of a liquid that has a vapor pressure of 606 torr at 84 degrees celsius and a boiling point of 96.3 degrees celsius at 1 atm?
How many grams of Ammonium phosphate need to be combined to 500 and
Which of the following pairs would NOT interact to produce an attractive/favorable weak interaction within a proteins 3D structure at physiologic pH.
At 25C, H2O2 decomposes according to the following equation. 2H2O2(aq) => 2H2O (l) + O2(g) .55V
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