The maximum size the balloon can get before popping (or flying off the flask) is 6.00 l at 1.00 atm of pressure and a temperature of 45°c. what maximum concentration of hydrochloric acid can be used (to just keep the balloon from popping) if 65.0 ml of hcl is added to 9.00 g of magnesium?

The maximum concentration of HCl that can be used is 7.08 M

Explanation:

The reaction that takes place is:

The available moles of Mg are:

H₂ gas is produced and fills the balloon. We use PV=nRT to calculate the maximum moles of H₂ that can be produced before the balloon pops off:

Now that we know that we have more than enough moles of Mg to produce 0.230 moles of H₂, we know that HCl is the limiting reactant.

We calculate the required moles of HCl:

Now we use C = n/V to calculate the concentration of HCl:

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.