a closed manometer with an atomospheric pressure of 3.57 atm the mercury level is lower by 47 mmhg in the arm connected to the gas sample. what is the pressure of gas sample?

Question

anonymous · Answer

can someone guide me through this question so i can solve the others on my own.

ipwnbunnies · Answer

Ahh man, I thought it was gonna use the actually gas law. 
Sorry, Idr how to do these problems. :/

anonymous · Answer

oh ok thanks for trying do you knw anyone that knws how to do this that is on this site

ipwnbunnies · Answer

I might. And Ariel probably doesn't know lol.

anonymous · Answer

@Mjones9338 can you help

anonymous · Answer

@anitasonia98 can you help

anonymous · Answer

Ah, alright. So you have to have a conversion between atm and mmHg. :) 
1 atm = 760 mmHg.
Do you think you could solve the problem now by converting the two (Both of those values should be either in atm or mmHg)?

anonymous · Answer

so i would do 3.57 * 760

anonymous · Answer

Right on :)

anonymous · Answer

Then what would you do? :)

anonymous · Answer

then do i multiply 760 and 47

anonymous · Answer

??

anonymous · Answer

for the first conversion i got 2,713.2 mmhg is that right

anonymous · Answer

Well, you're trying to find the new pressure.
The question says that the mercury level is lowered by 47 mmHg.
That sounds about right to me. 
So 2,713.2-47= what?

anonymous · Answer

2,666.2 mmhg or atm ???/

anonymous · Answer

mmHg :)

anonymous · Answer

Now you want to convert that amount back into atm (From the sound of that problem).

anonymous · Answer

how do i do that?

anonymous · Answer

|dw:1397695335755:dw|

anonymous · Answer

oh ok i get it thanks can i show you my work for the second problem once i figured it out just to see that i got it

anonymous · Answer

Sure! :)

anonymous · Answer

For the first one? Or second one?

anonymous · Answer

actually the anwser for the first one is 3.5 atm right?

anonymous · Answer

Looks right to me :D
What's the second question? :)

anonymous · Answer

the second question is	In an open manometer with an atmospheric pressure of 86.5 kPa, the mercury level in the arm connected to the atmosphere is 53 mm Hg lower than in the arm connected to the gas. What is the pressure of the gas sample?

anonymous · Answer

Well, 1 kPa=7.50061683 mmhg...
I'm assuming you converted kPa to mmHg? :)

anonymous · Answer

um yea isnt the anwser 648.8 mmhg

anonymous · Answer

Lemme check.

anonymous · Answer

Sorry, kinda fell asleep. Could you show me your work?

anonymous · Answer

@shamil98