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A solution is prepared by mixing 3.9 g of FeCl3 with enough water to make 125.0 mL of solution. Calculate the molarity of the solution.
A solution containing iodide ions has a percent transmittance reading of 72.3%. what is the molarity of the iodide ion in this solution
Given the acid is diprotic and its pKa is 1.90 and 6.70, estimate the PH after 10 mL of base are added? After 20 mL basea added? After 30 mL Base added?
What is the buffer component ratio, ([CH3CH2COO-]/[CH3CH2COOH]) of a propanoate buffer that has a pH of 4.49. Ka of CH3CH2COOH is 1.3 x 10-5.
What is the pH of a buffer that results when 0.50 mole of Na3PO4 is mixed with 0.75 mole of HCl and diluted with water to 1.00 L? The acid dissociation constants for phosphoric acid
suppose 321 grams of methylamine (CH3NH2) and 332L of oxygen gas are mixed together in the reaction below at STP. how many grams of water should be prouduced?
A vapor composed of 0.20 mole fraction ethanol and 0.80 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid. Assume that the liquid is an ideal solution and apply Raoul..
why would the chemiluminescence be more pronounced than with the flask stoppered? Why is the chemiluminescence even more pronounced with the ferricyanide/hydrogen peroxide mixture?
How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
How many moles are present of an ideal gas at the following conditions: 1.0 atm, 25.00C
What fraction of the SbO+ will be reduced to the elemental (Sb) state under the experimental conditions imposed in part (a)?
Ethylene, C2H4, and water react under appropriate conditions to give ethanol. The reaction is C2H4(g) + H2O(g) C2H5OH(g) An equilibrium mixture of these gases at a certain temperature
nitric acid and potassium carbonate. b. sodium bromide and lead nitrate. c. acetic acid and calcium hydroxide.
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