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50.0mL of rhubarb juice are titrated with 0.1000 M NaOH and 34.8mL of this NaOH solution are needed for neutralization. Assuming the acidity of the juice is due to oxalic acid (a di-protic acid), H2C2O4 (90.04g/mol), find out the weight of oxalic acid (in grams) per liter of juice
The solubility of phenanthrene in methanol is 0.133M. How many grams of Phenanthrene do i need to make 10ml solution
An alpha particle (mass = 6.6 multiplied by 10-24 g) emitted by radium travels at 3.2 multiplied by 107 ± 0.1 multiplied by 107 mi/h. What is its de Broglie wavelength (in meters)
We were given three ways to make an ammonia/ammonium buffer solution. One way was to add solid NH4Cl to aqueous NH3. This way proved to be the best buffer when HCl or NaOH were added. Why is this. Why does the solid/aqueous buffer work the best.
100.0 g of nickel at 150 degc was placed in 1.00 l of water at 25.0 degc. the final temperature of the nickel-water
describe the importane of chemical elements to living
Determine what volume of .1 M HBr is required to neutralize 50 ml of .140 M Barium hydroxide and determine the normality of a solution consisting of 10.51 mg of NaOH in 591 mL of solution
Calculate [OH] for a solution formed by adding 5.00 mL of 0.140M KOH to 15.0 mL of 9.0×10-2M Ca(OH)2.
You have 25 ml of 0.5 M standard NaOH solution (density 1.03 g/ml at 20oC) and copious quantitiesof distilled water. Explain how you would prepare a 10^-3 molal solution; density of water at 20oC is0.9982 g/ml
assume two 200.0-l tanks are to be filled separately with gases helium and hydrogen. find mass of each gas is required
using a gas sample of an ideal gas of .95 mol 3.00 atm and at 300 k expands from sixteen litres to twenty eight litres
A sample of an unknown gas effuses in 10.5 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.07 min. What is the molar mass of the unknown gas?
What is the equilibrium partial pressure of N2O4? (atm) (b) Calculate the value of Kp for the reaction. (c) Calculate the value of Kc for the reaction.
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