davinedmcneal
15.11.2019 •
Chemistry
To melt the ice on your driveway, you can use two moles of rock salt (nacl) or two moles of calcium chloride (cacl2). which solute will have the greatest effect and why?
a) nacl because it is completely soluble in water.
b) nacl because it produces fewer moles of solute particles per mole of compound.
c) cacl2 because it produces more moles of solute particles per mole of compound.
d) cacl2 because it is less volatile than nacl.
Solved
Show answers
More tips
- S Science and Technology How to choose a home theater system?...
- H Health and Medicine Discover the Hidden Principles and Real Results of the Japanese Diet...
- C Computers and Internet Google Search Tips and Tricks: Everything You Need to Know...
- F Food and Cooking Experts Name Top 5 Healthiest Teas...
- F Food and Cooking From Latte to Espresso: Which Coffee Drink is the Most Popular on Earth?...
- F Food and Cooking How many stages of coffee roasting are there?...
- C Computers and Internet Porn Banner: What It Is and How to Get Rid Of It?...
- G Goods and services How to Choose a Coffee Maker? The Ultimate Guide for Coffee Lovers...
- C Computers and Internet How to Teach Older Generations to Work with Computers?...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
Answers on questions: Chemistry
- C Chemistry Guys who is ur fav rapper?...
- C Chemistry PLS HELP ASAP I NEED NUMBER 8...
- C Chemistry My teacher gave this assignment for homework, and I don’t get it. A little help please?...
- C Chemistry A brick of the type used to build a kiln is 11.0 cm wide, 6.00 cm tall, and 22.7 cm long; the brick has a mass of 2950 g. Calculate the density of the brick...
- C Chemistry Calculate the number of atoms of each element present in 3.24mol of sulphuric acid H2SO4...
- C Chemistry If sulfur dioxide and oxygen can be made into sulfur trioxide, what is the reverse reaction?...
- C Chemistry At 25 degrees, the rate constant for the first order decomposition of a pesticide solution is 6.40 x 10^-2 min^-2. if the starting concentration of pesticide is 0.0314...
- C Chemistry How many moles of pcl5 can be produced from 60.0 g of cl2 (and excess p4)?...
- C Chemistry Calculate the mass units of .25 mol of carbon -12 atoms....
- C Chemistry An unstable nucleus which starts a decay process is called the parent nuclide mass defect daughter half life...
Ответ:
because it produces more moles of solute particles per mole of compound.
Explanation:
Freezing point depression depend on the "amount of solute particles" . Freezing point is also a colligative property. As we know, calcium chloride will dissociate into 3 particles whereas sodium chloride dissociate into only 2 particles. So, an aqueous solution calcium chloride would be effective than sodium chloride.
Also the water's boiling point with calcium chloride is higher. So is considered as a good road salt since it produces more ions per formula unit of salt that is dissolved than NaCl
Ответ: