Our Discord hit 10K members! 🎉 Meet students and ask top educators your questions.Join Here!

# Hemoglobin is 6.0$\%$ heme $\left(\mathrm{C}_{34} \mathrm{H}_{32} \mathrm{FeN}_{4} \mathrm{O}_{4}\right)$ by mass. To remove the heme, hemoglobin is treated with acetic acid and$\mathrm{NaCl},$ which forms hemin $\left(\mathrm{C}_{34} \mathrm{H}_{32} \mathrm{O}_{4} \mathrm{O}_{4} \mathrm{FeCl}\right) . \mathrm{A}$ blood sample from a crime scene contains 0.65 $\mathrm{g}$ of hemoglobin. (a) How many grams of heme are in the sample? (b) How many moles of heme?(c) How many grams of Fe? (d) How many grams of hemin could be formed for a forensic chemist to measure?

## a)$\mathrm{m}($ heme $)=0,039 \mathrm{g}$b)$\mathrm{n}($ heme $)=6,33^{*} 10^{-5} \mathrm{mol}$c)$\mathrm{m}(\mathrm{Fe})=0,0035 \mathrm{g}$d)$\mathrm{m}($ hemin $)=0,041 \mathrm{g}$

#### Topics

Chemical reactions and Stoichiometry

### Discussion

You must be signed in to discuss.
##### Stephanie C.

University of Central Florida

##### Allea C.

University of Maryland - University College

##### Morgan S.

University of Kentucky

### Video Transcript

were given for Incheon will go beyond that. We have 6% unless he me Um they received a corresponding to see 13 h for two iron one eye and then the four national and also you. Okay, so that each of the media can be converted to, um he means he means say savory. Safer for us over here. The question over here we've arrested as Essam call. Right? So if the blood sample have still 0.65 grand more hemoglobin, what would be the he me mass? And then what was your number most off Amy? And also what will be the massive i n g ing does, um he me And also what we bohemian being produce? Okay, so first off for the mass. So he me because you know that 6% by ah master, we just take soup for 65 time, 6%. So he will be corresponding to ourself on Sirius six. So we're super explain times before she was six who have 0.0 free now. Grand wolf, He me. Okay, so we have Ah, 0.39 Graham will be me. We just need to do right by the moon. A mass off he me. And then we didn't know the lumber. Move off him. All right, so, uh, found among the masses, It's pretty, um, be along formula. For we have 34. Um, carbon free to Hodgins. We have a one iron one organ, and we have for, um, night Children's. And there were four ostrich. So the massive be the bag is 600 15.89 So we have super on Super Free 90. We'll buy the moon of the Mass, and then we should be able to find a six point three time 10 to 9 to five. No. Okay, So how about the mass off line? Are the massive iron you in each off the I mean, the overall. He me. Um So Okay, so we have 6.3 times tender. They're the five morphine me. And then this is a chemical formula off Amy, and we feel each of the humidity counting one ARN. So the lumber move for far in. Essentially, he goes to the lumber move or he me because it's explained three times 10 to 11 5 most and a massive eye and reaches after their multiplied that by little moose by the mass of iron. And then we can file the, um, the mass off, aren't you? So, um, after mother planet above the mass, we should people who find as 14 of our 3.5 time 10 to 10 10 to the power of three. Most are fine. Sorry. Scramble. Fine. Scramble. Fine. All right. And thus belong is what will be the mass up he meet m i n being for maybe tweet there. He me with acidic acid and also we have Ah, um, so in Cory. Okay, so we can have time to write. Ah kam code equation. So we're safe for the voyage. Forget shoe ironed and over end for 04 and then go to go through a reaction. We've STDs, insulin, Cory. And at the end of the day, we have ah h off thieves with were and for 04 high end and core and Cole Cole. Right? So, by looking at the formula, come, we can actually see that you just have one more call again, huh? Um, in the formula. But the actual you have reaction will be a bit much more complicated. than that. But this I mean, the just seem really simple. You quit, you creation can already have us. You found the mask. The reason is that we should want to know the motorway show. You see, that is 1 to 1. Um, yeah. You can also say it is plus one. Um, some cry, and then there would be a sodium mind flying around. But the most important thing is that for is for you, Jimmy, You were formed when he mean Okay, So definitely we have, ah 6.3 time tend to do their five. No. Then then will The way show is 1 to 1. We also a 6.3 time since your last life. Mo. Okay, so the massive p me we'll have our lumber most mother flight by the molar mass. So the masses will be It'll be. Yeah, SPB. So we have Ah, 44 carp pond for it's you. Hi. Delusions to a nitrogen. Sorry, sir. Before danger Jin And then we're four surgeon, Then we have one iron and then we have one core and a few modify everything together. We should be able to find it. A mass will be corresponding through sip on civil for ah one. Graham. Oh, human pin form

University of Toronto

#### Topics

Chemical reactions and Stoichiometry

##### Stephanie C.

University of Central Florida

##### Allea C.

University of Maryland - University College

##### Morgan S.

University of Kentucky