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The bases below are ranked lowest to highest. Explain the ranking order based on molecular characteristics.HCO2-Li+, HO-Li+, CH3CH2O-Li+.
Calculate the minimum mass of hexane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
The indicator propyl red has Ka = 3.3 × 10-6. What would be the approximate pH range over which it would change color?
what amount of heat would need to be added to 5.0 x 103 g of water to change its temperature from 21c to 84c?
A mixture of copper(II) sulfate pentahydrate (249.70 g/mol) and magnesium sulfate heptahydrate (246.49 g/mol) is heated until all the water is lost. The weight of the initial mixture is 5.020 g, and the weight of the resulting anydrous compounds i..
Write the balanced net ionic equation for the following dissolution reaction: Zn(OH)2 in aqueous NaOH
A buret containing NaOH solution has an initial reading of 0.14ml. 25.00ml of 0.1000M HCl is titrated to a phenolphthalein end point,
A balloon contains 400cm3 of helium at 25degrees and 1atm pressure. If the balloon bursts when the volume exceeds 800cm3. What would be the maximum temperature it could withstand at constant pressure?
Reactions of alcohols with hydrogen halides yield the important class of compounds known as alkyl halides. Reactivity towards the hydrogen halides
A sample of an ore of iron, hematite, is 56% Fe2O3. How much iron is there in 2 kilograms of the ore?
The percentage of an additive of gasoline was measured six times with the following results: 0.13, 0.12, 0.16, 0.17, 0.20, 0.11%. Find the 90% confidence level interval
How would (The weak base sample was impure, containing about 5% inert material) affect the values of Ka for the weak acid unknown and the values of the molar mass for the disodium salt
If the methane contained in 2.00 L of a saturated solution at 25 degrees C was extracted and placed under STP conditions, what volume would it occupy.
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