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Nataly [62]
3 years ago
11

Help me please would be happy if you did

Chemistry
1 answer:
Natasha_Volkova [10]3 years ago
8 0
You have to read the passage and compare and contrast the story
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The density of ethanol was determined experimentally at 25°C in a series of trials to be 0.608 g/mL, 0.705 g/mL, and 0.689 g/mL.
Studentka2010 [4]

Answer:

15.46%

0.667 g/mL (more o less) 0.052 g/mL (standard deviation)

Explanation:

To solve the problem, it is necessary calculate the average:

(0.608 g/mL + 0.705 g/mL + and 0.689 g/mL) / 3= 0.667 g/mL

standard deviation= 0.052

Now, let us calculate the % error:

[(0.789 g/mL - 0.667 g/mL) / 0.789 g/mL] * 100% = 15.46%

8 0
3 years ago
Compared to a hydrocarbon chain where all the carbon atoms are linked by single bonds, a hydrocarbon chain with the same number
leva [86]

Answer:

Be more constrained in structure

Explanation:

This is because double bonds confer unsaturation on an organic molecules. The molecules are more ordered as they have lesser number of hydrogen atoms in them.

Having same number of carbon atoms means they are corresponding molecules.

For example. Ethyne is corresponding to ethane. Since ethyne has less number of hydrogen atoms than ethane, it will be more constrained in structure than ethane.

8 0
3 years ago
Pepsi
kogti [31]

Answer:

A) They are all acidic.

Explanation:

All 3 of those have acidic qualities in the drink.

4 0
3 years ago
Read 2 more answers
How many moles of oxygen gas (O2) are in a 2.50 L container at standard temperature and pressure?
Anon25 [30]

Hey there!:

1 mole O2 ----------------- 22.4 L  ( at STP )

( moles O2 ) -------------- 2.50 L

moles O2  = 2.50 * 1 / 22.4

moles O2 = 2.50 / 22.4

moles O2 =  1.12*10⁻¹


Answer B


Hope that helps!

6 0
4 years ago
why do astronomers use frequencies other than the visible ones when they are investigating the universe?
Aneli [31]
Because different objects give out electromagnetic radiation at different frequencies. Some objects are very ea...

Hope this help
4 0
3 years ago
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