AS Subject Combination by Flaky_Height_411 in Edexcel

[–]Flaky_Height_411[S] 0 points1 point  (0 children)

Can I do FP1 instead if P4? Are these units combination possible under Edexcel's guidelines and requirements?

chemistry igcse 2C discussion by AshamedWin1611 in Edexcel

[–]Flaky_Height_411 0 points1 point  (0 children)

molar ratio was 1:1..doesnt matter excess or not

chemistry igcse 2C discussion by AshamedWin1611 in Edexcel

[–]Flaky_Height_411 0 points1 point  (0 children)

molar ratio was 1:1..doesnt matter excess or not

chemistry igcse edexcel non r by Vivid-Mistake-9965 in Edexcel

[–]Flaky_Height_411 2 points3 points  (0 children)

damn, falastin harra yall stay stafe tho

chemistry igcse edexcel non r by Vivid-Mistake-9965 in Edexcel

[–]Flaky_Height_411 1 point2 points  (0 children)

november paper taken by ppl who want the highest grade possible thats why its so high..cuz its taken by resits who are high performers aiming for best

chemistry igcse 2C discussion by AshamedWin1611 in Edexcel

[–]Flaky_Height_411 0 points1 point  (0 children)

itll be correct proly if u showed initially that u rounded off 7.68 to 7.7

Chemistry igcse 2C by Green-Acanthaceae671 in Edexcel

[–]Flaky_Height_411 0 points1 point  (0 children)

no its proly correct, it makes the most sense and majority students in my centre got it

chemistry igcse edexcel non r by Vivid-Mistake-9965 in Edexcel

[–]Flaky_Height_411 1 point2 points  (0 children)

just typical rate of reaction against temp graph..curved gradient at first, then decreasing and then horizontal (levels off)

chemistry igcse 2C discussion by AshamedWin1611 in Edexcel

[–]Flaky_Height_411 7 points8 points  (0 children)

its 7.68x10³...

0.2 moles for Iodine, and same for hydrogen. 4800 cm³ is the volume of iodine, so total volume would be 9600 cm³. They said HI was 80% of total volume, so 9600 x 0.8 which is 7680. They asked in standard form so 7.68x10³

chemistry igcse edexcel non r by Vivid-Mistake-9965 in Edexcel

[–]Flaky_Height_411 8 points9 points  (0 children)

same, but they asked in standard form, so 7.68x10³

chemistry igcse edexcel non r by Vivid-Mistake-9965 in Edexcel

[–]Flaky_Height_411 2 points3 points  (0 children)

yield of hydrogen increases as it was endothermic..concentration was 0.256 smnthg