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:

mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation: