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qaws [65]
3 years ago
9

A sample of nitrogen gas occupies a volume of 1.40L at 297K with a pressure of 776mmHg. The volume increases to 2.70L and the te

mperature decreases to 274K. What is the final pressure in atmospheres exerted on the gas?
Chemistry
1 answer:
konstantin123 [22]3 years ago
6 0

Hey it isnt letting me submit my answer to your question on the Japanese chart, so imma just submit it here

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Faunal succession and fossil correlation relate to the principle of superposition because there are fossils of certain organisms
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Answer:

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use the periodic table to select the element from the drop-down menu that has the correct relative electronegativity.
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You need to list the elements but remember that fluorine has the highest electronegativity out of the entire periodic table
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2 years ago
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What would the Net Ionic Equation be for the following:
marin [14]
The net equations are obtained from the double displacement of the cations and anions, then balance. 

NH3(aq) + HC2H3O2 (aq) =  NH4+(aq) + C2H3O2-(aq<span>) 
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3 0
3 years ago
The question in the picture, I really a correct answer, no cheap answers​
Delvig [45]

Answer:

94.325 g

Explanation:

We'll begin by converting 350 mL to L. This can be obtained as follow:

1000 mL = 1 L

Therefore,

350 mL = 350 mL × 1 L /1000 mL

350 mL = 0.35 L

Next, we shall determine the number of mole of KC₂H₃O₂ in the solution. This can be obtained as follow:

Volume = 0.35 L

Molarity of KC₂H₃O₂ = 2.75 M

Mole of KC₂H₃O₂ =?

Molarity = mole /Volume

2.75 = Mole of KC₂H₃O₂ / 0.35

Cross multiply

Mole of KC₂H₃O₂ = 2.75 × 0.35

Mole of KC₂H₃O₂ = 0.9625 mole

Finally, we shall determine the mass of KC₂H₃O₂ needed to prepare the solution. This can be obtained as illustrated below:

Mole of KC₂H₃O₂ = 0.9625 mole

Molar mass of KC₂H₃O₂ = 39 + (12×2) +(3×1) + (16×2)

= 39 + 24 + 3 + 32

= 98 g/mol

Mass of KC₂H₃O₂ =?

Mass = mole × molar mass

Mass of KC₂H₃O₂ = 0.9625 × 98

Mass of KC₂H₃O₂ = 94.325 g

Thus, the mass of KC₂H₃O₂ needed to prepare the solution is 94.325 g

6 0
2 years ago
Find the mass of 1.112 moles HF?
Alexeev081 [22]

Answer:

22.25 g

Explanation:

To find the mass, you need to convert moles to grams and get 22.25 g.

7 0
3 years ago
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