marissagirl4688 marissagirl4688
  • 26-04-2018
  • Chemistry
contestada

When 15.0 g of zinc metal reacts with excess hcl, how many liters of h2 gas are produced at stp?

Respuesta :

mkryukova19 mkryukova19
  • 26-04-2018
M(Zn)=65.4 g/mol
15.0g Zn*1mol Zn/65.4 g Zn = 15/65.4 mol Zn

                               Zn +2HCl--->ZnCl2 + H2
by equation          1 mol                            1 mol
from the problem 15/65.4 mol                15/65.4 mol

Molar volume of any gas under STP = 22.4 L/mol

 15/65.4 mol H2 * 22.4 L/1 mol= 5.14 L H2


Answer Link

Otras preguntas

Argyle has 8 t-shirts and 5 pairs of shorts that he wears with either sandals or sneakers.if all the colors and patterns coordinate how many different outfits c
125 thousandths = 1 tenth _______________ thousandths
What two mixed numbers have a sum of 3
A water molecule gains enough energy to enter the gas phase is chemical or physical?why?
4x+5y=20 write this equation in slope intercept form
Why is there no ocean-continent divergence? I need to know I'm just in 6th grade
what is the equivalent of 1/50 : fraction , in decimal form
How does vinegar affect the growth of a plant?
THE 3 STOOGES ARE ASKED WHO IS THE SMARTEST. TWO OF THEM ARE TRUTHFUL AND ONE IS A LIAR. LARRY SAYS CURLY IS THE SMARTEST, MOE SAYS LARRY IS THE SMARTEST AND CU
How does vinegar affect the growth of a plant?