Question

When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) ➡ MgCl2 (aq) + H2 (g), if 24.3 g of Mg and 75.0 g of HCl are allowed to react, calculate the mass of H2 that is produced.

1.00 g

2.00 g

4.00 g

5.00 g

Answer 1

so Is it... c? i think?

Answer 2

right sean?

Answer 3

Just determine how many moles of each then your limiting reactant. Use your limiting reactant to determine the number of moles you can produce then convert to grams.

Answer 4

I'm getting 2.00g. 24.3g is exactly 1 mole of Mg. so the ratio between Mg and HCl is 1:1. Therefore 1 mole of HCl is produced being 2.0g

Answer 5

what about the HCI?

Answer 6

Mg limits the reaction.

Answer 7

ohhhh ok I get it.

Answer 8

Throw HCl out the window

Answer 9

lol 75% of science - just throw that out the window and focus on this.

me- but i liked that :/
:P ill tag you

Answer 10

lol very true XD

Answer 11

:P