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vladimir1956 [14]
3 years ago
14

can someone solve me some papers I don't have time and I need to submit today please I will make you brilliant ​

Chemistry
1 answer:
dem82 [27]3 years ago
6 0

Answer:

submit the papers onto this platform and we will try to help out.

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If i have a 50 L container that holds 45 moles of gas at a temperature of 473 K, what is the pressure inside the container?
Furkat [3]

Answer:

The pressure inside the container is 34.97 atm

Explanation:

Given:

V=50L R= 0.0821LatmK^-1mol^-1

n= 45mol T= 473k

PV=nRT

P= nRT/V

= 45mol*0.0821Latmmol^-1K^-1*473K/ 50L

=34.95atm

6 0
3 years ago
March 10<br> march 3<br> february 16<br> february 22
Lilit [14]

your answer will be March 3

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3 years ago
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The amount of 217 mg of an isotope is given by A(t) = 217 € -0.0171, where t is time in years since the initial amount of 217 mg
Maru [420]

The amount left after 20 years = 154.15 mg

<h3>Further explanation </h3>

The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.  

Usually radioactive elements have an unstable atomic nucleus.  

The main particles are emitted by radioactive elements so that they generally decay are alpha (α), beta (β) and gamma (γ) particles  

The decay formula for isotope :

\tt \large{\boxed{\bold{A(t)=217e^{-0.0171t}}}

Then for t=20 years, the amount left :

\tt A(t)=217e^{-0.0171\times 20}\\\\A(t)=154.15~mg

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3 years ago
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1. I am in group two period three. What element am I?<br> A Ti<br> B, C<br> C. Ca<br> D. WE
AysviL [449]

Answer:

Ca

Explanation:

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3 years ago
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Why do you think the soccer ball fell more slowly than the golf ball
alexgriva [62]

Answer:

kinetic energy than the potential energy it carries

Explanation:

3 0
3 years ago
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