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salantis [7]
3 years ago
15

SO2+O2 SO3 how many moles of O2 needed to combust 100.0g of sulfur dioxide

Chemistry
1 answer:
Oksanka [162]3 years ago
6 0

2SO2 + O2 ------> 2SO3


1) M(SO2)= 32.0 + 2*16.0 = 64 g/mol


2) 100.0 g SO2 * 1 mol SO2/64 g SO2 = 1.5625 mol SO2


3) 2SO2 + O2 ------> 2SO3

2 mol 1 mol

1.5625 mol x mol


x= 1.5625/2=0.78125 ≈ 0.7813 mol O2


Answer: 0.7813 mol O2.

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Answer:

5 hours

Explanation:

Given:

Distance = 275 km

Speed = 55 km/h

speed =  \frac{distance}{time}

time =  \frac{distance}{speed}

time = \frac{275}{55}

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Using this equation 2H2+O2–>2H2O when 47g of water are produced, how many grams of hydrogen must react
hoa [83]

You must react 5.3 g H_2 to produce 47 g H_2O.

<em>Step 1</em>. Calculate the <em>moles of H_2O</em>

Moles of H_2O = 47 g H_2O × (1 mol H_2O/18.02 g H_2O) =2.61 mol H_2O

<em>Step 2</em>. Calculate the <em>moles of H_2 </em>

Moles of H_2 = 2.61 mol H_2O × (2mol H_2/2 mol H_2O) = 2.61 mol H_2

<em>Step 3</em>. Calculate the <em>mass of H_2</em>

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6 0
3 years ago
A compound is found to be 63.6 % N and 36.4% O. What is the empirical formula?
FromTheMoon [43]

Answer:

NO2

Explanation:

Calculate moles of Nitrogen and oxygen (assume total mass is 100g as you only have percentages therefore there is 63.6g of N and 36.4g of O) This is the ratio that they are in but you need the ratio to be in whole numbers therefore divide each number of moles by 2.275 (the moles of oxygen) to calculate the empirical formula. Hope this helps!

8 0
3 years ago
What term is used for the electrons in the outermost shell or energy level
Romashka [77]

Answer:

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7 0
4 years ago
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