Let's look at the molar weight of the answers:
NO is 30 g/mol
NO2 is 46
N2O is 44
N2O4 is 124
<span>We have the grams of the product, so we need the moles in order to calculate the molar weight. We us PV=nRT for this, assuming standard temperature and pressure. </span>
You were given the liters (.120L)
Std pressure is 1 atmosphere
You're looking for n, the number of moles
<span>Temp is 293.15 kelvin, thats standard </span>
And r is the gas constant in liters-atm per mol kelvin
(.120 liters)(1atm)=n(293.15K)(.08206)
Solving for n is .0049883835 mol
<span>.23g divided by .0049883 mol is about 46g/mol. You're answer is B I think, NO2
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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Answer:
C. pieces of hair found at the crime scene.
Explanation:
using the pieces of hair, you can get the DNA of the person. This will give u a better lead in solving the crime.
Hope it helps u ....
Answer:
a) quantitative
b) qualitative
c) quantitative
d) qualitative
e) quantitative
Explanation:
a) it is a quantitative statement, since it uses the concepts of limits and aproxximation in the calculation to give its estimate.
b) it's a qualitative statement, beacause its an appreciation of someone who thinks that one's work ist better than another's.
c) it is a quantitative statement, since it is an expression that is mathematically demonstrated,
d) it's a qualitative, beacuse it'a a simple opinion of someone.
e) it is a quantitative statement, since this expression is demonstrated in real life and helps to save
