8. How many grams does 5.02 x 1025 molecules of caffeine weigh?

Q: 3+ Calculate the pH of a 0.069-M A1 (NO3)3 solution. The K₂ value for Al (H₂O)6* pH = is 1.4 x 10-5.

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Q: 4. Propose how to make the following alkene through a Wittig reaction and draw the mechanism. ol

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Q: 6) Explain why a 0.010 M solution of hydrochloric acid, HCl has a pH of 2.00 but a 0.010 M solution…

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Q: Calculate the amount of ammonium sulfate necessary to get a 20% solution

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Q: The following experimental data was collected by a student: 0.0020 M Fe(NO3)3 mL Trial 1 2 3 4 Blank…

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Q: 2. How would you carry out the following transformations? (b) G 0-ठे COH

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.