In the reaction mg(s) + 2hcl(aq) → h2(g) + mgcl2(aq), how many moles of hydrogen gas will be produced from 250.0 milliliters of a 3.0 m hcl in an excess of mg? 0.75 moles 0.38 moles 3.0 moles 1.5 moles

0.38 moles of hydrogen

Explanation: Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Thus

is a limiting reagent as it limits the formation of products and Mg is an excess reagent.

As 2 mole of gives= 1 mole of

0.75 moles of will give= of

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

the answer is learned