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8_murik_8 [283]
2 years ago
14

Hear flows from water in one container to another. What difference between the two samples of water causes heat to flow?

Chemistry
1 answer:
vampirchik [111]2 years ago
7 0

C. heat tends to balance out and it must travel to cooler areas to balance out the temp

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A sample of gas occupies 3.00 L with 5.00 moles present. What would
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3/5 times 5/3x = 8*3/5. X=24/5 simplified would be x= 4.8 L.

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20.0 g of bromic acid, HBrO3, is reacted with excess HBr.
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After Rounding off The percentage yield is 64%

<h3>What is Percentage Yield ?</h3>

It is the ratio of actual yield to theoretical yield multiplied by 100% .

It is given in the question

20.0 g of bromic acid, HBrO3, is reacted with excess HBr.

The reaction is

HBrO₃ (aq) + 5 HBr (aq) → 3 H₂O (l) + 3 Br₂ (aq)

Actual yield = 47.3 grams

Molecular weight of Bromic Acid is 128.91 gram

Moles of Bromic Acid = 20/128.91 = 0.155 mole

Mole fraction ratio of Bromic Acid to Bromine is 1 :3

Therefore for 0.155 mole of Bromic Acid 3 * 0.155 = 0.465 mole of Bromine is produced.

1 mole of Bromine = 159.8 grams of Bromine

0.465 of Bromine = 74.31 grams of Bromine

Percentage Yield = (47.3/74.31)*100 = 63.65 %

After Rounding off The percentage yield is 64% .

To know more about Percentage Yield

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5 0
1 year ago
On the pH scale pure water has a pH of<br> A. 0<br> B. 7<br> C. 14
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Answer:its b 7

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7 0
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The electron dot diagram for a neutral atom of chlorine (atomic number 17) is shown below.
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Answer:

A. 35Cl1-

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