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GenaCL600 [577]
3 years ago
10

If it takes three "breathes" to blow up a balloon to 1.2 L, and each breath supplies the balloon with 0.060 moles of exhaled air

, how many moles of air are in a 3.0 L balloon?
Chemistry
1 answer:
padilas [110]3 years ago
3 0
A 3.0 L balloon is 2.5 times as big as a 1.2L balloon, and 3 times .060 equals .18, so if you multiply .18 by 2.5 you get .45 moles of air i’m pretty sure
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Answer: A) This reaction will be spontaneous only at high temperatures

Explanation:

\Delta G= +ve, reaction is non spontaneous

\Delta G= -ve, reaction is spontaneous

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Using Gibbs Helmholtz equation:

\Delta G=\Delta H-T\Delta S

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4 0
3 years ago
What is the molarity of 2.00 L of a solution that contains 14.6 g NaCl?
White raven [17]

Answer: The molarity of the solution is 0.125 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n}{V_s}

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n = moles of solute

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moles of NaCl = \frac{\text {given mass}}{\text {Molar mass}}=\frac{14.6g}{58.5g/mol}=0.250mol

Now put all the given values in the formula of molality, we get

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8 0
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*Riddle!* *Riddle!!* *Riddle!!!*
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Answer:

https://www.getriddles.com/science-riddles/

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go to this link, you will find some answers

hope it helps!

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