Question

What is the mass of HCl that would be required to completely react with 5.2 grams of Mg?

Answer 1

can you write balanced reaction between Hcl and Mg

Answer 2

Mg + 2HCl → MgCl2 + H2
That's what it gives me.

Answer 3

molecular weight of HCl??

Answer 4

molar mass of HCl =atomic mass of H + atomic mas of Cl
find and tell me

Answer 5

36 i think.

Answer 6

atomic mass of Mg

Answer 7

24.

Answer 8

good :)

Answer 9

from balanced equation u can write
for 24 gram of mg to react completely you need 2*36 gram of HCl
but for 5.2 gram of Mg to react completely you need =

can u calculate now

Answer 10

Trying to figure this out..

Answer 11

I'm on here because i suck at chemistry lol.

Answer 12

no problem :)
you have to do cross multiplication :)
its like
for example
10 fruit price = 100 punds
then for 2 fruits =100*2 /10 = 20

Answer 13

so i multiply 5 and 2 or 5 and 36?

Answer 14

if i do all of that i get 360..

Answer 15

2*36*5.2 / 24

Answer 16

can u now LOL:)

Answer 17

oh well my options are,
A. 6.9
B.6.934
C.16
D.
15.60

Answer 18

So?

Answer 19

2*36*5.2 / 24
clauulate this LOL:) do u suck in maths too or what i dont think soo

Answer 20

15.6

Answer 21

oh i got it lol.