You have a container of laughing gas with an internal pressure of 7.5 atm. The container is 13 cm^3. You transfer this gas to a person's mouth that is 25 cm^3 large. What is the internal pressure of the mouth?

answer; /// i do believe that the correct answer is (c)nuclear bond

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

all eukaryotic cell have mitochondria : )

the maximum mass of nh3 is nh3 in grams