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The following cations were extracted from 100 g soil with at CEC of 20 meq/100g. The soil contained:
180 mg Ca+2 36 mg Mg+2 1 mg Na+ 13 mg K+
a. Calculate the % base saturation of the soil.
b. Calculate the lbs/acre foot of each cation.
The titration required 35.46 mL of 0.1052M Na2S2O3 solution. A faded price label on the gallon bottle read $0.79. The density of the bleaching solution was 1.10 g/mL Calculate the number of moles of S2O32- ion required for the titration
Chemical Kinetics - Determine the time taken by a reactant to reach a particular concentration
You have a radiocarbon sample analyzed and find out that the sample has 60% of the modern level of radiocarbon. Calculate the radiocarbon age of the sample using an assumed 5730-year half-life.
A benzylic carbocation is generated under the conditions of part A. would the presence of a para CH3O- group on the benzene ring
A current of 3.15 A is passed through a Pb(NO3)2 solution for 1.40 hours. How much lead is plated out of the solution.
Solve an equilibrium problem (using an ICE table) to calculate the pH of a solution that is 0.185 M in HC2H3O2 and 0.120 M in KC2H3O2
a reaction in water causes the water in beaker to cool from 25 degrees celsius to 21 degrees celsius. the volume of
Determine the concentration in molarity (M) of a crystal violet solution based on a measured absorbance of 0.652 at 590 nm at a path length of 1.0 cm
Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions
In countries where potassium iodide is added to salt, iodine deficiency or goiter has been almost completely eliminated. The recommended daily allowance (RDA) for iodine is 150 pg/day.
an ice cube contains 925 grams of water. If the initial temperature is at 15 degrees celcius, how many kilojoules of heat are needed to cool and freeze the water at 0 degrees celcius.
The compounds listed above were heated in ethanol and sodium hydroxide for approximately 60 minutes. Then extracted with dichloromethane to get the final product.
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