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Masja [62]
3 years ago
5

In the lab, you took mass and volume measurements and plugged them into the density formula and calculated densities for differe

nt objects. How do you preserve the accuracy and precision of your measurements when doing calculations with the measurements?
Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
8 0
You <span>preserve the accuracy and precision of your measurements when doing calculations with the measurements by not rounding of the resulting values of the each step in the calculations. It would be recommendable to round off the value only at the final answer. Hope this helps.</span>
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Answer:

1335.12 mL of H2O

Explanation:

To calculate the mililiters of water that the solution needs, it is necessary to know that the volume of the solution is equal to the volume of the solute (NaOH) plus the volume of the solvent (H2O).

From the molarity formula we can first calculate the volume of the solution:

M=\frac{solute moles}{solution volume}

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MW=\frac{mass}{mol}

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d=\frac{mass}{volume}

Volume=\frac{mass}{d} =\frac{199.985g}{2.13\frac{g}{mL} } =93.88mL of NaOH

Having the volume of the solution and the volume of the solute, the volume of the solvent H2O can be calculated:

Solvent volume = solution volume - solute volume

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