OCR AS-level Chemistry June 2018 Paper 1 (first half) walkthrough

OCR AS-level Chemistry June 2018 Paper 1 (first half) walkthrough

[@raman7095]

For question 22 ii , 0.093 x 24.3 is 2.2599 so final answer is 2.26g

[@raman7095]

I love your videos and the amount of detail you go into, it helps so much! Thank you for your time and effort :)

[@daviesa-levelchemistry1210]

Thanks v. much for your kind comment. Best of luck in your exams :-)

[@Strawhaty]

12 - IF THE METHANOL gets evaporated then wouldnt the mass decrease????

[@zahraaalater7953]

Isnt the formula for alkenes CnH2n not CnH2n+2

[@abdullahsalman5016]

for question 4, mass of Na is moles x Mr not Ar. Helpful vid tho thanks :)

[@safa4806]

thank you soooo much

[@daviesa-levelchemistry1210]

Thanks for watching. Best of luck with your exams. :-)

[@pratyasha279]

49:16 what d.p is this meant to be in according to the question?

[@toffeefawn5177]

you missed question 22 a iv

[@daviesa-levelchemistry1210]

OK. Sorry. Make Mg3(PO4)2 using MgO and H3PO4.
Equation is 3MgO + 2H3PO4 --> Mg3(PO4)2 + 3H2O

[@toffeefawn5177]

@@daviesa-levelchemistry1210 thank you the video was still really helpful

[@anwinsiju8674]

Thank you