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Ka for ethanoic acid = 1.74 × 10–5 mol dm^–3 also given in question. moles = concentration x volume / 1000Ka = [H+] [A-]/[HA]pH = -log [H+]
initial moles:NaOH: 20x0.1/1000 = 0.002molCH_...

The very first thing you need to do is purely read it through in order to get an understanding of the poem. I'd recommend not even trying to think too technically at this point, but rather notice what eff...

Am liebsten würde ich nach Egypten fahren, weil ich in meinem Leben noch nie eine Pyramide gesehen habe. Die egyptische Kultur und Geschichte finde ich auch fascinierend. Meine große Schwester zieht nächs...

Showing each step of working is important.First, we need to rearrange one of the equations to solve for x or y.If we rearrange the first equation to solve for y in terms of x we get: y = 5 - 2x ( by subtr...

Diffusion is the process by which a molecule moves from an area of high concentration to an area of low concentration, down a concentration gradient. Any gas or liquid can move by diffusion, and no energy...