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    • Thread Starter

    http://vvcap.net/db/o81JNgVuQCFgBJc4G1Yx.htp in case that image doesn't upload this is the print screen link
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    I went through the mark scheme and it said 'mol of HCL = 1.5*10^-2, vol = 75'. I can work out the mols, 7.50*10^-3 * 2 because of the ratio between caCo3 to 2HCL but I'm not understanding how the volume is worked out to be 75.

    Vol = n/c right? So where's 75 come from? I can get 7.5 * 10^-3 but not 75!

    I'm too stupid for chemistry!
    • Thread Starter

    Don't worry XD I figured it out, after a long time, realised it was v = n/c * 1000 (cm^3) not v = n/(c*1000) -.-

    I feel so stupid now -.- On another note, does anyone have a good revision tool for oxidisation because I fail at it, and a place where can I find legacy papers?
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