Density Lab B

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Dwu1011
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Density Lab B

Post by Dwu1011 » September 25th, 2019, 1:49 pm

Let's get this marathon started!

What is the concentration in ppm of selenium if 1.3 milligrams is found in 2500 kg of soil?
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2019-2020 Events:
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Density Lab - 1/2/1/4
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AwesomeSauceis1
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Re: Density Lab B

Post by AwesomeSauceis1 » October 15th, 2019, 8:55 am

Dwu1011 wrote:
September 25th, 2019, 1:49 pm
What is the concentration in ppm of selenium if 1.3 milligrams is found in 2500 kg of soil?

I'm going to guess that it's 0.00052 ppm.
2020 Events: Circuit, Density, Machines, Mission
Competing in OC against Jeffrey Trail/Kraemer be like

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Re: Density Lab B

Post by Dwu1011 » October 15th, 2019, 6:01 pm

AwesomeSauceis1 wrote:
October 15th, 2019, 8:55 am
Dwu1011 wrote:
September 25th, 2019, 1:49 pm
What is the concentration in ppm of selenium if 1.3 milligrams is found in 2500 kg of soil?

I'm going to guess that it's 0.00052 ppm.
Correct! Now you ask a question.
Optics,Towers, Wright Stuff
Herpetology, Game On, Density Lab
2019-2020 Events:
Ornithology- 2/2/1/1
Density Lab - 1/2/1/4
ELG - 2/7/1/1
Machines- 4/1/1/0
Mission Possible - 13/15/1/1
Game On - 0/2/2/0
SQB - 0/0/0/0/1
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AwesomeSauceis1
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Re: Density Lab B

Post by AwesomeSauceis1 » October 16th, 2019, 10:53 am

What is the mass of 5.1 moles of carbon dioxide (CO)?
2020 Events: Circuit, Density, Machines, Mission
Competing in OC against Jeffrey Trail/Kraemer be like

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Re: Density Lab B

Post by Dwu1011 » October 16th, 2019, 4:49 pm

AwesomeSauceis1 wrote:
October 16th, 2019, 10:53 am
What is the mass of 5.1 moles of carbon dioxide (CO)?
Is the answer 224.451
Optics,Towers, Wright Stuff
Herpetology, Game On, Density Lab
2019-2020 Events:
Ornithology- 2/2/1/1
Density Lab - 1/2/1/4
ELG - 2/7/1/1
Machines- 4/1/1/0
Mission Possible - 13/15/1/1
Game On - 0/2/2/0
SQB - 0/0/0/0/1
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AwesomeSauceis1
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Re: Density Lab B

Post by AwesomeSauceis1 » October 16th, 2019, 8:29 pm

Dwu1011 wrote:
October 16th, 2019, 4:49 pm
AwesomeSauceis1 wrote:
October 16th, 2019, 10:53 am
What is the mass of 5.1 moles of carbon dioxide (CO)?
Is the answer 224.451

Yep, sorry I forgot to give units/sig figs. Your turn.
2020 Events: Circuit, Density, Machines, Mission
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Re: Density Lab B

Post by AwesomeSauceis1 » November 15th, 2019, 8:45 am

And I'll just go again, um...

A gas at STP is heated to 57 C, and its container shrinks from 8 L to 5.5 L. What is the new pressure of the gas in kPa (to the nearest tenth)?
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Re: Density Lab B

Post by theprimegrinder » January 12th, 2020, 1:46 pm

I have an invitational in 1 wk, and I need problems, so I'll answer. Is it 182.4 kPa?

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Re: Density Lab B

Post by AwesomeSauceis1 » January 12th, 2020, 3:21 pm

theprimegrinder wrote:
January 12th, 2020, 1:46 pm
I have an invitational in 1 wk, and I need problems, so I'll answer. Is it 182.4 kPa?
Close, but incorrect. Probably a calculation error or something.

Someone else do a problem, I'm too lazy
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Re: Density Lab B

Post by theprimegrinder » January 12th, 2020, 4:56 pm

Ok...this one isn't in the rules, but something useful to know

Please describe the 5 postulates of the Kinetic-Molecular Theory

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