You have 47.0 ml of a 0.400 m stock solution that must be diluted to 0.100 m. assuming the volumes are additive, how much water should you add?

Hey there!

Moles of stock solution:

47.0 mL in liters : 47.0 / 1000 => 0.047 L

n = M * V

n = 0.400 * 0.047

n = 0.0188 moles

Volume final :

M = n / V

0.100 = 0.0188 / V

V = 0.0188 / 0.100

V = 0.188 L =>  188 mL

Therefore Watter added :

volume final - volume initial

188 mL - 47.0 mL =>  141 mL

Hope That helps!

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.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.