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a student added 5.65g og KMnO4 to a beaker containing 150 ml of 0.200 M KMnO4 solution. calculate the molar concentration of the final solution. assume volume remains constant
A procedural change would be essential if a boy want to determine the tomato juice's acidity by titrating a sample of juice with NaOH(sodium hydroxide) solution Briefly explain What change would you make to the procedure ?
Acid Mixture Problem, From a full 50-liter container of a 40% concentration of acid, x liters is removed and replaced with a 100% acid.
supoose that ammonia, applied toa field as a fertilizer, is washed into a farm pond containing 3.0 x 10^6 L of water. if the pH of this pond is found to be 9.81
Draw the appropriate titration curve for the tripeptide Met-Lys-Val, starting at pH 1 and ending at pH 12, On the curve label the pKas and the pI
Which of the intermolecular forces is the most important contributor to the high surface tension shown by water and What is the quantum of light called?
Phenolphthalein is an acid base indicator. What color does it possess in the presence of excess hydrogen (i.e., hydronium) ions?
A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. She finds that 14.6 mL of 0.426 M NaOH are required to neutralize the acid.
As a food chemist for a major potato chip company, you are responsible for determining the salt content of new potato chips products for the packaging label.
1) The standard potential of the cell Ag(s)|AgCl(s)\\Cl-(aq)||Ag (aq)|Ag(s) is 0.58 V at 25 °C. Calculate the equilibrium constant for the cell reaction.
The nature of the intermediates in E1 and Sn1 reactions are carbocations. If the molecule doesn't follow that formula then it has either double bonds or rings or both.
Some water was added to the initial reaction mixture of 5mL water, 5.55g sodium bromide and 5 mL butanol in the procedure that was perfromed to obtain 1-bromobutane from 1-butanol.
What happens if student forgets to rinse the buret with a small portion of EDTA solution. (Buret contains water droplets from washing.) If this incorrect concentration of EDTAis used to calculate the ppm CaCO3
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