Convert 730 mmHg to Pascals: Solve the Question

[xyz123]

if atmospheric pressure is 730mm of mercury, what is this in pascals..?

based on my study guide 1atm = pgh

= 13,590 kg/m(cube) * 9.807 N/kg * 0.76m

= 101,300Pa

do i calculate it as such :

= 13,590 kg/m(cube) * 9.807 N/kg * 0.73m...?

my answer does not tally as the guide's answer states 96000Pa

i even tried by g = 10N/kg instead of 9.807 (if less accuracy is needed)...
but my answer still does not tally..? i'll be able to find the pressure in atmospheres and millibars once i obtain the calculating method to the first problem...pls help !

 

[Hootenanny]

There are 133.322 pascals per mm of mercury

 

[xyz123]

thx you so very much for the quick reply...by multiplying 133.322 pascals to 730mm (mercury) i obtained the answer 97,325.06 pascals which very close to the method i first used in the previous post (97,292.3049 pascals).
why does my study guide state 96,000 pascals as the answer ? I'm so sorry but i have no tutor and i study by myself (very new to physics)...thx you!

 

[Hootenanny]

I don't quite know

 

[xyz123]

ok thanks so much though...last question...the method that i used (first post)..is it also considered a correct way of finding the answer..? are you a moderator..? should i leave this post as it is hoping someone else might be able to answer it or should i close this post once you reply to it (the 'last question')..? sorry for the trouble...thx!

 

[Hootenanny]

Im not a moderator, it is a good idea to leave the post open as people have different specialities and are more qualified than me to answer your question, after all I am mearly a student! Your method looks fine and as the two answer are in close agreement I would expect them to be right. Check back soon to see if anyone else has added to your post.

 

[xyz123]

Forces & Pressure (Homework Question)

thank you so much ! i appreciate your assistance.

can anyone pls help me figure out why my study guide states a different answer. thanks !