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EM
Questions and answers by visitors named
EM
Questions (12)
Light from a sodium lamp ( wavelength= 589 nm) illuminates a narrow slit and is observed on a screen 75 cm behind the slit. The
4 answers
2,271 views
The Place you get your haircut has two nearly parallel mirrors 5.0m apart. As you sit in the chair, yoru head is 2.0 m from the
3 answers
1,370 views
A compound contains only nitrogen and hydrogen and is 87.4% nitrogen by mass. A gaseous sample of the compound has a density of
5 answers
5,398 views
1....How much force needed to bring a 3200 lb car from rest to a velocity of 44 m/s in 8 sec.?
2....A ball with a mass of 2 kg
3 answers
745 views
A person who weigh 500N climbs a flight of straight from the ground to the 4th floor of a building in 40sec. If the height of
2 answers
737 views
1...At what temp. of 0^C steel rod and copper rod have length of 800.1 & 99.9 respectively. At what temp. will the 2 rods have
1 answer
667 views
How to find Cross Section Area given
x=5 x=-5 y= sqrt(25-x^2) y= -sqrt(25-x^2)
1 answer
344 views
I make A snack mix by combining 3/4 of a pound of gummy bears with one pound of peanuts. I have 3 1/4 pounds of peanuts
a) how
4 answers
719 views
Hi
I am trying to help my 4th grade daughter with homework and I am stuck with this question. Please help and explain how you got
12 answers
3,225 views
40% of what is 32?
1 answer
233 views
Elemental S reacts with O2 to form SO3 according to the reaction:
2S+3O2→2SO3 How many O2 molecules are needed to react with
5 answers
3,476 views
Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete
4 answers
3,110 views
Answers (5)
So for Part A it would be 1.48694^23? Part B 13.21g? I want to double check to get them right Part C I was able to get them right, thank you so much.
Just a note that DrBob222 is incorrect. In face it the molsH2SO4=1/2mols NaOH. I struggled on this problem and tried to follow DrBob222's other work for a similar problem but again it left me with the wrong answer
Thank you for explaining this to us.
Thank you so much for your help and explaining my wrong answer
I've tried that and im still not getting the answer (which is 0.12 mm) =/ i used that formula to give me the theta and i substituted that into the d= lambda/ sin theta
