#HBC | ZoZo
Shocodoro Blagshidect
I'm not even gonna john, but it wasn't done on purpose
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Nothing "looooool" about it, dude.It was basicly sleepdrunkness loooool
Cuz you haven't exploded yourself and killed 3 Townies.can i be blacklisted too
i dont take things seriously and im not mature
why dont you blacklist me too, Meta-Kirby?
Lime is the supposed answer I just....have no idea how she got that.4.66 What mass of NaOH is needed to precipitate all the Fe2+ ions from 25.0 mL of 0.500 M Fe(NO3)2 solution?
Fe2+(aq) + 2 OH−(aq) Fe(OH)2(s); FW(NaOH) = 39.997 g/mol
nFe=MV=(0.500 M)(0.0250 L) = 0.0125 mol Fe2+ present need 0.0250 mol OH−
mass(NaOH) = (0.0250 mol)(39.997 g/mol) = 1.00 g
4.72 In the laboratory 7.52 g of Sr(NO3)2 is dissolved in enough water to form 0.750 L. A 0.100-L sample is withdrawn from this stock solution and titrated with a 0.0425 M solution of Na2CrO4. What volume in mL of Na2CrO4 solution is needed to precipitate all the Sr2+(aq) as SrCrO4?
FW(Sr(NO3)2)=211.63 g/mol; n = 7.52 g/(211.63 g/mol) = 0.0355 mol Sr2+
M = n/V = 0.0355 mol/0.750 L = 0.0474 M
naliquot=MV=(0.0474 M)(0.100 L)=4.74 x 10-3 mol Sr2+=moles of CrO42- needed
V = n/M = 4.74 mmol/0.0425 M = 111 mL
My test on this stuff is tomorrow. XD All we've done is light hand sanitizer on fire and seperate iron filings from sand and salt, how am I supposed to know how to calculate this titration?man you're takin me wayyyy back bro
Physics at my school is sort of....odd. Our teacher is this behemoth guy who is kinda slow. However, it's only honors Physics during the period I could take it, so....I went with the AP Credit instead (gotta keep up my GPA, second in the class, I wanna make a speech at graduation haha!)lol i did that stuff earlier this summer
its funny that it has completely left my mind since then
chemistry sucks...
now if it was physics we were talkin bout...
Yeah, I took Honors Chemistry 1st Period, 2nd Semester Junior Year, and now I have AP Chemistry 1st Period, 1st Semester Senior Year, and I've forgotten almost everything.Sorry man. It's been years since I had chemistry, and I don't remember any of it.
Hahaha, see, exactly!! :Ddont worry, im premed and i aced chemistry
i cannot answer your questions
It was Xcode. (an Iphone app programming software).what program are you coding
Trufax. Yedi also gets cool cred for that.I hung out and played Melee with Frozen.
We are now cooler then everyone here?