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densk [106]
3 years ago
10

What is the pH of a solution with a pOH of 13.75?

Chemistry
1 answer:
alexdok [17]3 years ago
4 0

Answer:

is easy to get more questionable and paste it in the class and then let's go to the class is better for fashion and then let's go to the answer

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What is the mass of oxygen in 300 grams of carbonic acid (H2CO3)
DENIUS [597]

mass of carbonic acid = 300g

molar mass of H2CO3 = 2H + C + 3 O

= 2 x 1.008+ 12.01 + 3 x  16

= 62.03g/mol


moles of H2CO3 = mass/Molar mass

= 300/62.03

= 4.8364 moles


1 mole H2CO3 has 3 moles Oxygen


4.8364 moles H2CO3 contains  

=   3 x 4.8364  moles Oxygen  =   14.509 moles Oxygen


moles = mass/Molar mass


mass of oxygen = moles x Molar mass of Oxygen

= 14.509 x 16

= 232.15g Oxygen

mass of oxygen in 300g of carbonic acid(H2CO3) = 232.15g

7 0
3 years ago
When a substance is added to water, bubbles form. How can you confirm the type of change that took place?
weeeeeb [17]
A
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4 0
3 years ago
Choose all the answers that apply.
BARSIC [14]

Answer:

A C and D hope this helps

Explanation:

3 0
3 years ago
An atom of Fe has 30 neutrons. What is the mass number of this atom?
SVETLANKA909090 [29]

Answer:

56

Explanation:

The mass number of an atom is a sum of its number of protons and neutrons. Iron (Fe) has an atomic number of 26. This means that it has 26 protons. Since we know it has 26 protons and are told it has 30 neutrons. The mass number of this atom of Iron is 26+30 = 56

Hope this helped!

7 0
3 years ago
What is the effect of photosynthesis in the carbon dioxide cycle ​
iren [92.7K]

Answer: joe mama

Explanation: joe mama

8 0
3 years ago
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