. If one was given the instruction to weigh accurately, approximately 0.5 g (to 0.1 mg) nickel (II) chloride,?

Question

what does this information imply

Answer 1

I guess you mean why have they said " accurately, approximately".

It means that you need a weight around 0.5g of the compound (it doesn't matter if you are a bit above or below) but you need to know accurately how much you have weighed (write it down).

i.e. as long as you are around 0.5 g and you know exactly how much you have weighed, you are ok

Answer 2

As a standard analytical instruction, this would mean a weight probably between 0.4 to 0.6 g weighed to the nearest milligram. So weights like 0.415g, 0.593g, 0.521g would meet this criteria.

The approximate weight is ti get to the ballpark and the accuracy is noted.

Answer 3

You are to weigh a sample (about 0.5 g) of nickle(II) chloride to the nearest 0.0001 g (0.1 mg). This implies that the error of measurement is <0.00005 g (0.05 mg).

Answer 4

a mg is a miligram, or 0.001 g.

so the instruction is to mass 0.5 g to an accuracy of 0.001 g.

This is between 0.499 - 0.501 g

Answer 5

that means you can weigh .5 grams plus or minus .001 grams.