Problem G5

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Problem G5

Postby keyaluo4C » Sun Oct 07, 2018 8:12 pm

When I solve out G5 (b) I always end with 62.5 ml instead of 62.6 ml. Can someone explain why I can't seem to get the correct significant figures for this problem and what exactly you did to get it?

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Re: Problem G5

Postby Chem_Mod » Sun Oct 07, 2018 9:43 pm

This could be a calculator error. If you report the correct significant figures and have the correct process, IT IS OK if your answer is off by 0.1, you will not lose points.

Dustin Shin 2I
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Re: Problem G5

Postby Dustin Shin 2I » Fri Oct 12, 2018 8:38 pm

62.5 mL should be the correct answer unless I am looking at a different version. Using the molarity equation and rearranging it to find volume of solution (V), you get (4.98 x 10^-3 mol of CO3) / (0.07967 mol/L of Na2CO3) = 6.25 x 10^-2 or 62.5 mL.

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