![angelrenee2000](/avatars/29278.jpg)
angelrenee2000
22.07.2019 •
History
In 1896, the realignment was driven by issues related to
Solved
Show answers
More tips
- F Food and Cooking 10 Reasons Why You Should Avoid Giving Re-Gifts: An Informative Guide...
- S Sport How to wrap boxing hand wraps? Everything you need to know!...
- A Animals and plants 5 Tips for Taking Care of Yews to Keep Them Green and Beautiful...
- H Health and Medicine How to Calm Your Nerves? Expert Tips That Actually Work...
- O Other What is a Disk Emulsifier and How Does it Work?...
- S Sport How to Pump Your Chest Muscle? Secrets of Training...
- C Computers and Internet How to Get Rid of 3pic Infector: Everything You Need to Know...
- S Style and Beauty How to Grow Hair Faster: Real Methods and Advice...
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
Answers on questions: History
- H History Which of the following areas has the linguistic fragmentation...
- H History Please help! (please don t copy from the internet and i will give you brainliest) What is significant about the supreme court’s decision in McCulloch v. Maryland?...
- H History After the Civil War, the United States: a - became more industrial b - made advancements in communication and transportation. c - grew to be one of the world s wealthiest...
- H History Why is Whittaker Chambers significant to US History?...
- H History Where was the first democratic government established...
- H History What was manifest destiny and why did it inspire a burst of american expansionism in the 1840s...
- H History Peasants had a harsh life on the manor...
- H History How might the constitution have been different if african americans, native americans, and women had been able to attend the convention?...
- H History How does chief kabongo characterize the differences regarding life in kenya between the days before british conquest and the 1950s?...
- H History Match the vocabulary word with its meaning. 1. literacy the political orientation of those who hold that a republic is the best form of government 2. republicanism...
Ответ:
Ответ:
What is the mole fraction of a solution that contains 200 g of magnesium hydroxide in 225 g of water
0.215
Explanation:
Given parameters:
Mass of magnesium hydroxide = 200g
Mass of water = 225g
Unknown:
Mole fraction of solution = ?
Solution:
The mole fraction is a measurement of concentration that expresses the number of moles of solute to that of solution.
Mole fraction =![\frac{mole of solute}{moles of solution}](/tpl/images/0558/0714/dffc5.png)
A solution is made up of solute and solvent
Number of moles =![\frac{mass}{molar mass}](/tpl/images/0558/0714/5ded5.png)
Molar mass of Mg(OH)₂ = 24.3 + 2(16 + 1) = 58.3g/mol
Molar mass of H₂O = 2(1) + 16 = 18g/mol
Number of moles of Mg(OH)₂ =
= 3.43moles solute
Number of moles of H₂O =
= 12.5moles solvent
Mole fraction =
= 0.215