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Sonbull [250]
3 years ago
15

Im doing a science fair project and i need to find out what are the constents in my project i have to presnt tomorrow i need hel

p!
Chemistry
1 answer:
lions [1.4K]3 years ago
4 0
The constents would be anythign that stays the same in ever experiment. 

Example:  Growing sunflowers in different liquids 

The constants could be: Type of dirt used to grow each, amount of liquid used to water, and the type of sunflowers grown. 


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Answer:

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Explanation:

the chemical reaction of NH3 to NO is as follows:

4NH3(g) + 5O2(g) ⟶4 NO(g) +6 H2O(l)

We have the following data:

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we calculate the moles found in 645 L of O2:

P*V = n*R*T

n = P*V/R*T

n= (0.88 atm * 645L/s)/((0.08205 L*atm/K*mol) * 468 K) = 14.78 moles of O2

With the reaction we can calculate the number of moles of NO and with its molecular weight we will have the rate of NO:

14.78 moles/s O2 * 4 molesNO/5 molesO2 * 30.01 g NO/1 molNO x 1 kgNO/1000 gNO = 0.36 kg/s NO

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