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Semenov [28]
3 years ago
12

1. 2KCIO3, -- 2KCI + 302 How many moles of O2 will be produced from 2.25 moles of KCIO3?

Chemistry
1 answer:
Scilla [17]3 years ago
8 0

Answer:

3.375moles of O₂

Explanation:

The reaction expression is given as;

                   2KClO₃ → 2KCl + 3O₂

Number of moles of KClO₃  = 2.25moles

Now;

To find the number of moles of O₂ produced we use known number of moles.

So;

                  2 mole of KClO₃ will produce 3 moles of O₂

                 2.25moles of KClO₃ will produce \frac{2.25 x 3}{2}   = 3.375moles of O₂

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A student collected a total of 36.04 g of water from a reaction. What number of moles of water does this represent
umka21 [38]
To find the number of moles from a mass given, simply look to the formula n (moles) = m (mass, g) / MM (molar mass).
Mass was given, 36.04
Molar mass is the total atomic mass of all the atoms present. Water is H20, so that means 2 hydrogen and 1 oxygen. The atomic mass of hydrogen is 1 and atomic mass of oxygen is 16. Therefore MM= 1 + 1 + 16= 18.
Plug that value in and the full equation is
n = 36.04/18
n = 2.002 moles
= 2 moles
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Answer:

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3 years ago
A soccer balll is travelling at a velcrocity of 50ms the kinetic energy of the ball is 500 what is the mass of the soccer ball
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3 0
3 years ago
2KClO3 2KCl + 3O2
FinnZ [79.3K]
True, because most chemical reactions have more moles but not really.
Also that they decompose better. "not really"
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NH3(g) will take the shape of and completely fill a closed 100.0 milliliter container. 
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