Question

Write balanced equation for the following reactions:

1) magnesium carbonate+hydrochloric acid-->magnesium chloride+water+carbon-dioxide,
2) iron+sulphuric acid-->iron(II)sulphate+hydrogen,
3)carbon+oxygen(gas)-->carbon monoxide,
4)iron(III)oxide+carbon-->iron+carbon dioxide,
5) ammonium hydroxide+sulphuric acid-->ammonium sulphate+water

Answer 1

you know the formulas of all ???

Answer 2

no

Answer 3

like for 1 . magnesium carbonate is MgCO3

Answer 4

no i dont know

Answer 5

then its very difficult for you . I can't give you direct answers

Answer 6

you know elements and there symbols ??

Answer 7

ok can u tell me that how can we calculate the molecular mass of \[Al(OH)_{3}\]

Answer 8

But I need some other values too

Answer 9

ops its Molecular mass .Yeah yeah I can :)

Answer 10

no i just need the formula or molecular mass of \[Al(OH)_{3}\]

Answer 11

The molar mass is the sum of the masses of each of the atoms in the molecule:
Al: 26.98
O: 15.99x3
H: 1.008x3
Total: 77.97 g/mol ~ 78 g/mol
(the O and H are multiplied by three because there are three of each in the molecule)

Answer 12

but i think it is \[(1\times 27)+(3\times 16)+(3\times 1) =78\]
is this right

Answer 13

both are same dear :)

Answer 14

Is it necessary to write g/mol

Answer 15

Can u tell me \[Fe _{2}(SO _{4})_{3}\]

Answer 16

yeah it is necessary

Answer 17

Fe = 55.845
S = 32.065
O = 15.9994

Therefore:
2*55.845 + 3*32.065 + 12*15.9994 = 399.88 g/mol

Answer 18

u did Oxygen 12 times because???

Answer 19

did u multiplied \[4\times 3\]

Answer 20

(SO4)3 4 x 3 = 12 means 12 no of Oxygen in formula

Answer 21

did you get it?

Answer 22

ya thank u

Answer 23

No problem !!