dlakewilson9078 dlakewilson9078
  • 14-02-2020
  • Chemistry
contestada

How many moles (of molecules or formula units) are in each sample? Part A 42.37 g CF2Cl2 Express your answer to four significant figures.

Respuesta :

anfabba15
anfabba15 anfabba15
  • 15-02-2020

Answer:

0.3504 mol of CF₂Cl₂.

Explanation:

We need to know the molar mass of CF₂Cl₂ to find out the moles

Molar mass of C = 12 g/mol

Molar mass of F = 19 g/mol

Molar mass of Cl = 35.45 g/mol

Molar mass of CF₂Cl₂ = 12 + 19 . 2 + 35.45 . 2 =120.9 g/mol

Now we determine the moles of our mass

42.37 g . 1 mol / 120.9 g = 0.3504 mol

Answer Link

Otras preguntas

find the equation plz due today helppp
have some points me art babies! :D
CAN SOMEONE HELP ME PLEASEEE
Flip a coin 4 times and calculate the experimental probability of the coin landing heads up. Flip a coin 4 more times to increase the total number of trials to
If the grass contains 100,000 kcal of energy, how much energy will a fox obtain from eating a bird? 10,000 kcal 1,000 kcal 100 kcal 10 kcal
Plz helpp me According to the passage, which sentence best illustrates what Henry Ford and Eugene Debs are most concerned about? A. Henry Ford is concerned abou
A player crosses the line separating both sides of the court but then goes back behind that same line; what violation is called?
Rabies, typhus, and malaria are _____. all untreatable transmitted by animal bites diseases which have been eradicated caused by viruses
Help!!!! I need the answer to this
Which of the following statements tests if users walked 10,000 or more steps and ate fewer than 25 grams of sugar? A. if(steps >= 10,000 and sugar > 25);