When you take the log of something, the number of significant figures becomes the amount of decimal places of the answer. For example, -log(4.3E-3) ≈ 2.37.Hi lads and lasses,
when rounding up pH and pOH do u recommend rounding up to sig figs or decimal places? Because for the whole year my teacher has been telling us to round it up to one decimal places, but hsc Sample solutions suggest otherwise
I think it should.Hey guys. Would the hydrogen atom connected to the central carbon atom have 6 splits in its proton-NMR spectrum signal? Kinda confused about line splitting.
yeah there's a missing step there coz they just go from moles to monomers without any in-between step. The writing is pretty bad also ngl
btw for those polymer questions where they ask you to calculate the molar mass of a condensation polymer, you have to subtract n-1 number of water molar masses, where n is number of monomers not n water's, because 2 monomers join to form 1 water, so there's 1 less water.ok thanks for the clarification!
im pretty sure when they got number of moles they multiplied that by avagadros constant (6.022*10^23). i have no idea why they used that constant tho