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Aloiza [94]
3 years ago
14

Find the volume of 56.0 grams of O2

Chemistry
1 answer:
N76 [4]3 years ago
5 0

Answer:

39.2 L at STP

Explanation:

Convert the grams to moles first by dividing 56.0 by the molar mass of O2 (32.0) then convert to volume by multiplying by 22.4.

= 39.2 L

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What element are usually shiny , can be bent or stretched and conduct electricity
Alik [6]

Answer:

gold and copper

Explanation:

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3 years ago
What can the student predict if she finds the mass of the whole candy bar, including the wrapper?
Vesna [10]

Answer:

A student can predict Amount of calories present if she finds the mass of whole candy bar,including the wrapper.

<u>Explanation:</u>

Based on the mass of a whole candy bar a student can predict the calories contained in the candy bar. If the mass of candy bar is more than it means it has more calories and if the candy bar has less mass than it shows the presence of fewer calories.

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6 0
3 years ago
A 25.0 ml sample of 0.150 m benzoic acid is titrated with a 0.150 m naoh solution. what is the ph at the equivalence point? the
Ad libitum [116K]

Solution:

At the equivalence point, moles NaOH = moles benzoic acid  

HA + NaOH ==> NaA + H2O where HA is benzoic acid  

At the equivalence point, all the benzoic acid ==> sodium benzoate  

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Kb for benzoate = 1x10^-14/4.5x10^-4 = 2.22x10^-11  

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x^2 = 3.33x10^-12  

x = 1.8x10^-6 = [OH-]  

pOH = -log [OH-] = 5.74  

pH = 14 - pOH = 8.26  


5 0
2 years ago
Read 2 more answers
Compare the first ionization energy of sodium to that of potassium
stellarik [79]

Answer:

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3 years ago
The physician has ordered 1.0 g of tetracycline to be given every six hours to a patient. If your stock on hand is 500-mg tablet
Doss [256]

8 tablets.  To get 1 gram you would have to give 2 tablets every 6 hours. In 24 hours you would give 8 tablets (500 mg = .5 grams)

8 0
2 years ago
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