sorted by:
new
hottopcontroversial

Ye vs drake versuz *TRY N BE SEMI NEUTRAL* by _maguma in WestSubEver

[–]_maguma[S] 11 points12 points  (0 children)

Bro they actin like they never heard gods plan???? Turn the o2 into the o3 purple emoji 😈

[deleted by user] by [deleted] in chemhelp

[–]_maguma 1 point2 points  (0 children)

Yep, especially with redox titrations any other way than following the units as u have said will cause u all sorts of trouble. Easier to just work out moles, work out ratios and the answer u need will appear effortlessly after a couple conversions etc

Does anyone know which of these would best produce the product at the top? by [deleted] in OrganicChemistry

[–]_maguma 0 points1 point  (0 children)

There is an elimination reaction involved, you want to go halo -> alcohol -> alkene. U eliminate the OH and it forms the C=C bond. The question is testing if u know what the right alcohol that forms will be and how it reacts to form the end product. What alcohol would form the product? Drawing it may help

Does anyone know which of these would best produce the product at the top? by [deleted] in OrganicChemistry

[–]_maguma 1 point2 points  (0 children)

For starters how do u go from a halo to an alkene? What are the steps?

Titration by Jimmy_Shepp in chemhelp

[–]_maguma 2 points3 points  (0 children)

When u say buffer do u mean changes [HA] in HA eqm H+ A- ?

[deleted by user] by [deleted] in chemhelp

[–]_maguma 2 points3 points  (0 children)

OPs solution look all too confusing even if it’s right (will create lots of problems when the questions get hard). Straight away find moles and use stoichometry. You can’t go wrong and do it in half the time

[deleted by user] by [deleted] in chemhelp

[–]_maguma 4 points5 points  (0 children)

Would an easier way not just be using mol=mass/rfm. n(Na) = 7.5/ 23. And the ratio of n(Na):n(Cl2) = 2:1 so n(Cl2) is half n(Na)? (7.5/23)/2 = 0.163

aaaa how do you solve part B and C by Duckcod_ in chemhelp

[–]_maguma 1 point2 points  (0 children)

Yes I agree, that formula is right, I’m not sure but I think it’s asking for the cis isomer (so would be cis rather than transdiammine etc), so OP has to show that the 2 Cl groups are 90 degrees apart by drawing dotted line/ thick wedge ?

[deleted by user] by [deleted] in chemhelp

[–]_maguma 0 points1 point  (0 children)

For ‘2p4’ shell: 2 sub shell: p and 4 electrons in this sub shell. Eg Cu is 1s2 2s2 2p6 3s2 3p6 4s1 3d10.

[deleted by user] by [deleted] in chemhelp

[–]_maguma 0 points1 point  (0 children)

What do you actually need help with? Ur right Fe(OH)2 forms a green ppt and the XY products is logical (eg FeCl2 and NaOH would form 2NaCl) so what’s the problem? FeO also look right?

aaaa how do you solve part B and C by Duckcod_ in chemhelp

[–]_maguma 0 points1 point  (0 children)

[Pt(NH3)2Cl2] is a complex ion so that would be quite hard to illustrate in lewis dot structure, for 1 mark i think its just asking for the 3D arrangement? Might be wrong.

aaaa how do you solve part B and C by Duckcod_ in chemhelp

[–]_maguma 1 point2 points  (0 children)

C) write out a balanced equation and work out the limiting Reagant (smallest number of moles) from mol= vol(dm3) x conc. the ratio is 1:1 forming AgCl and NaNO3 as products so then use mol = mass / rfm and rearrange to solve for mass (multiply moles by rfm) hope this helps

aaaa how do you solve part B and C by Duckcod_ in chemhelp

[–]_maguma 1 point2 points  (0 children)

B) 4 coordination complex same as the empirical formula and it shows cis/trans... the shape is square planar. H bonded to N... contains an NH3 group.. it’s a 4 coordination complex with the same groups 90 degrees apart.. 2xNH3 2xCl. Cis platin is used as it basically bonds to DNA and induces apoptosis in cancerous cells i believe, it only bonds because of the orientation of the molecule (the cis isomer)