PLEASE SOMEONE HELP how do i find the molarity of acetic acid in vinegar solution

the molarity of the standard solution is 0.3325M

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

What substance has a mass of 9.5g and volume of 2.1cm^3

Convert a speed of 201 cm/s to units of inches per minute. also, show the unit analysis by dragging components into the unit‑factor slots.