![yousifgorgees101](/avatars/24632.jpg)
yousifgorgees101
04.06.2021 •
Chemistry
The outlets in your home provide
A. Direct Current
B. alternating Current
C. Electric Discharge
D. Static Electricty
Solved
Show answers
More tips
- S Sport Where can you play football in Moscow?...
- 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?...
Answers on questions: Chemistry
- C Chemistry Give two limitations of law of Constant Composition...
- C Chemistry How many atoms of oxygen are in 3.45g of Na2SO4...
- C Chemistry Making solutions is an extremely important component to real-life chemistry. if you make 3.00 l of a solution using 90.0 g of sodium hydroxide, what is the final concentration?...
- C Chemistry The titration of a 20.0-ml sample of an h2so4 solution of unknown concentration requires 22.60 ml of a 0.158 m koh solution to reach the equivalence point. what is the concentration...
- C Chemistry As with any drug, aspirin (acetylsalicylic acid) must remain in the bloodstream long enough to be effective. assume that the removal of aspirin from the bloodstream into the urine...
- C Chemistry Asteam engine does 52 j work in 12 s. what is the power supplied by the engine ?...
- C Chemistry Scientists use something called a to measure when that liquid turns into a solid....
- C Chemistry You have a 23.5mL of a 12.5 M NaCl aqueous solution. You dilute this solution to a new total volume of 88.8mL. You place 64.5mL of the diluted solution into a beaker and boil...
- C Chemistry Geologists estimate that the mantle flows at rates of several: Choose 1 centimeters meters © kilometers...
- C Chemistry If two atoms are involved in nuclear fusion, the end result will be that the nuclei of both of the atoms–...
Ответ:
the use mole-mole ration from the given reaction equation. then convert the moles to mass back again using the molar mass of that compound.
molar mass NaF= 42.0 g/ mol
molar mass MgF2= 62.3 g/ mol
moles NaF= 5.5 / 42.0 g= 0.131 mol NaF
2 moles NaF = 1 mole MgF2
so 0.131 mol NaF/ 2= 0.0655 mole MgF2
grams MgF2= 0.0655 moles x 62.3= 4.08 grams
or simplified
5.5 g NaF (1 mol NaF/ 42.0 g) (1 mol MgF2/ 2 mol NaF) (62.3 g/ 1 mol MgF2)= 4.08 grams