SOLUTION: Find the mole fraction of this given problem: a.An NH3 solution made up of 30.0 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.

Question 1200803: Find the mole fraction of this given problem: a.An NH3
solution made up of 30.0 g of NH3 in 70.0 g of water.
The density of the solution is 0.982 g/mL.
Answer by ikleyn(52780) (Show Source): You can put this solution on YOUR website!
.
Find the mole fraction of this given problem: a.An NH3
solution made up of 30.0 g of NH3 in 70.0 g of water.
The density of the solution is 0.982 g/mL.
~~~~~~~~~~~~~~~~~~~~~

    DEFINITION

        Mole fraction X is the ratio of moles of one substance in a mixture 
        to the total number of moles of all substances. 

    https://www.google.com/search?q=mole+fraction&rlz=1C1CHBF_enUS910US910&oq=mole+fraction&aqs=chrome..69i57j0i131i433i512l2j0i512l7.2120j0j15&sourceid=chrome&ie=UTF-8

    
NH3 Molecular Weight  17.031

Number of moles in 30 g:    = 1.76149.


H2O Molecular Weight  18.01528

Number of moles in 70 g:    = 3.88559.


The mole fraction (the answer to the problem's question) is   = 0.31193 (rounded).

Solved, answered and explained.

The post-solution note: the given density of the solution 0.982 g/mL is EXCESSIVE, NON-NECESSARY and IRRELEVANT.

RELATED QUESTIONS
Calculate the molarity and the molality of an NH3 solution made up of 30.0 g of NH3 in... (answered by ikleyn)

Using the balanced equation 1N2 + 3H2 → 2NH3 Determine (answered by ikleyn)

what is the limiting and excess reactants in the reaction between 3 moles of NH3 and 6... (answered by josgarithmetic,ikleyn)

The Ostwald Process for producing nitric acid from ammonia consists of the following... (answered by Edwin McCravy)

If the density of a 500.0g H2SO4 solution is 1.84 g/cm^3 what are its molarity, mole... (answered by KMST)

1. For the reaction 2N2O(g) ⇋ O2(g) + 2N2(g), what happens to the equilibrium... (answered by Katiebug24)

The graph of the function is given (a) Find g(-4), g(-2), g(0), g(2), and g(4). (b)... (answered by solver91311)

In a chemistry course, you learn that a substance�s density is found by dividing its mass (answered by ankor@dixie-net.com)

Determine (f o g)(x) and (g o f )(x) for the pair of functions given. Also specify the... (answered by robertb)