[sanchenuss]

Hey you guys, I have a few organic chemistry problems that I could use some help on.

#1 What is the common unit of absorbed dose in radiation?

#2 Radioactive iodine 123 is concentrated by?

#3 What is common unit of dose equivalent in measuring radiation?

#4 What is name of missing product  234qo TH----> 234q1 Pa+gamma+_____?


Also is there any CH-CH3 structured converters anywhere on the net?

Thanks

[macman104]

Have you tried to look up the answer to these questions?  Please show some sort of attempt to answer these questions.

EDIT:  Also, I'm not sure what you mean by "CH-CH3 structured converter".

[sanchenuss]

yeah for 1 it is either gray or rad. 2 i think is the thyroid gland and so on. I just want to see if we have the same answers.

[macman104]

Sounds good so far, what do you have for the other two answers.

[sanchenuss]

3. rad 4. beta particles


This question I dont understand....

According to rules of covalence in organic chemistry which compound could not exist (--) represents long bond not single.

A) O=CH---CH2=CH--H          B) CH3--N=CH--CH2--CH2--Cl

C) CH3--S--S--CH2--CH2--NH2     D) H--O--O--CH2--H

[macman104]

This question I dont understand....

According to rules of covalence in organic chemistry which compound could not exist (--) represents long bond not single.

A) O=CH---CH2=CH--H          B) CH3--N=CH--CH2--CH2--Cl

C) CH3--S--S--CH2--CH2--NH2     D) H--O--O--CH2--H

I don't really understand what they are asking either.  Perhaps you can find a scanner and post an image of the question, the question doesn't make sense to me right now.

[Rabn]

what is meant by "long bond"? That is what's throwing me off.

[sanchenuss]

nevermind, the long bond, is just a single. like

C-C-C-   single

C=C       double


Also, If two or more different structures have the same amount of carbons and the same amount of hydrogens are the carbon and hydrogens percentages the same?

[Rabn]

You know, whenever my organic chem professor came into class(which he always did about 5 minutes late, for effect of course) he would say, so everyone could hear "Carbon ALWAYS makes 4 bonds!"

[sanchenuss]

so the bond is symbolized by the lines (- =) right?

Also do you know the answer to my percentages question

[Rabn]

right the bonds are symbolized by the lines. I would count how many bonds each atom has.

if molecule A has 12 carbons and 15 hydrogens and molecule B has the same amount of each then yes, but if either molecule contains any other atoms then the answer is no. You also need to make sure you know if it is %weight or mole fraction.

[sanchenuss]

ok. Thanks!

[sanchenuss]

which one of these is true about alkanes?

1) their carbon-carbon single bonds are open to chemical attack
2) They react with water and hydrogen
3) they react with fewer substances than members of any other organic family
4) They are oxidized by concentrated sulfuric acid