Answer:
0.4675 atm, 355.3 mmHg
Explanation:
Given:
Pressure = 355.3 torr
The conversion of P(torr) to P(atm) is shown below:
So,
Pressure = 355.3 / 760 atm = 0.4675 atm
The conversion of P(torr) to P(mmHg) is shown below:
So,
Pressure = 355.3 mmHg
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
So, 100 g of sample contains 18.8 g of lithium
Hence, x g of sample contains g of lithium
Now, the second sample has weight equal to 2x g
So, 2x g of sample contains g of lithium
So, % lithium by mass in second sample = % = 18.8%