Chemistry

Find the number of molecules of sodium bicarbonate present in 5.08 gram

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  1. mols Na2CO3 = grams/molar mass = ?
    1 mol will contain 6.022E23 molecules.

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  2. what is the ph of 50ml buffer solution which is 2M in CH3COOH and 2M in CH3CooNa?
    1 Initial PH before the addition of acids and base?
    2 What is the new PH after 2ml of 6.00M HCl is added to this buffer?
    3 what is the new PH after 2.00ml of 6.00M NaoH is added to the original buffer?

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