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Elena-2011 [213]

3 years ago

11

2. Does the aluminum sample (the can) contain more than, (less than or exactly one mole of aluminum? Support answer with calcula

tion.

1 answer:

mrs_skeptik [129]3 years ago

6 0

Answer:

than, (less than or exactly one mole

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A sample of pure lithium carbonate contains 18.8% lithium by mass. What is the % lithium by mass in a sample of pure lithium car

VashaNatasha [74]

Answer:

There is 18.8% lithium by mass in second sample

Explanation:

Both the two samples are pure lithium carbonate. So % lithium by mass will be same in both samples. This can be proved mathematically as follows-

Let's assume weight of first sample is x g

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So, % lithium by mass in second sample = $(\frac{\frac{18.8}{100}\times 2x}{2x})\times 100$ % = 18.8%

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