1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga55 [171]
2 years ago
12

What is the mass of 0.5 moles of carbon tetrafluoride, CF4?

Chemistry
2 answers:
klasskru [66]2 years ago
7 0

Answer:

44.0015

Explanation:

we go and look at the mass for carbon which is 12.011 then at the mass of fluorine which is 18.998. Since there are 4 Fluorines the we multiply 4 by 18.998 which we get 75.992. Then we add 75.992 + 12.011 which will give us 88.003 then multiply 88.003 by 0.5 which gives us 44.0015

VashaNatasha [74]2 years ago
4 0

Answer:

44 g

Explanation:

The formula for the number of moles (n) is equal to n=\frac{mass}{molecular weight} .

Since we need to find the mass, we derive it from the formula of the number of moles and we get that mass = n x molecular weight .

The molecular weight of CF_{4} = 12 g/mol (from the carbon) + 19x4 g/mol (from the 4 fluorine atoms)= 88 g/mol

We plug in the numbers in the derived formula for the mass and we get :

mass = n x molecular weight = 0.5 mol x 88 g/mol = 44 g

You might be interested in
When 11.12 g of neon is combined in a 100 L container at 80oC with 9.59 g of argon, what is the mole fraction of argon?
PolarNik [594]
The correct answer for the question that is being presented above is this one: "<span>0.3."

Here it is how to solve.
M</span><span>olecular mass of Ar = 40
</span><span>Molecular mass of Ne = 20
</span><span>Number of moles of Ar = 9.59/40 = 0.239
</span><span>Number of moles of Ne = 11.12/20= 0.556
</span><span>Mole fraction of argon = 0.239/ ( 0.239 + 0.556) = 0.3</span><span>
</span>
3 0
3 years ago
Which is the electron configuration for bromine?
r-ruslan [8.4K]

Answer:

bromine atomic number =35

1s²2s²2p^6 3s² 3p^6 4s² 3d^10 4p^5.

5 0
3 years ago
When does phenolphthalein turn pink?
Setler79 [48]
Phenolphthalein turn pink in basic solutions.it turn colourless in acid solution.
Hence options(1)is correct
3 0
3 years ago
Read 2 more answers
What is the molarity of a nitric acid solution if 43.13 mL 0.1000 M KOH solution is needed to neutralize 30.00 mL of the acid so
Leno4ka [110]

Answer:

0.144M

Explanation:

First, let us write a balanced equation for the reaction. This is illustrated below:

HNO3 + KOH —> KNO3 + H20

From the equation,

nA = 1

nB = 1

From the question given, we obtained the following:

Ma =?

Va = 30.00mL

Mb = 0.1000M

Vb = 43.13 mL

MaVa / MbVb = nA/nB

Ma x 30 / 0.1 x 43.13 = 1

Cross multiply to express in linear form

Ma x 30 = 0.1 x 43.13

Divide both side by 30

Ma = (0.1 x 43.13) /30 = 0.144M

The molarity of the nitric acid is 0.144M

8 0
3 years ago
4 and 5 pls and thank uuu
PtichkaEL [24]

Answer:

4. -ol

5. cyclic ketone

Explanation:

biology stuff

sorry it's hard to explain

5 0
2 years ago
Other questions:
  • FAN AND MEDAL
    15·2 answers
  • A woman’s menstrual cycle usually lasts about 28 days T/F
    15·2 answers
  • How many moles are in 1.86•10^23 F atoms?
    12·1 answer
  • What is the molar Mass of 2.4g of oxygen
    14·1 answer
  • Balance the equation KHCO3+ H3PO4 arrow K2HPO4+H20 C02.
    9·1 answer
  • How many moles of SnF₂ will be produced along with 48 grams of H₂?
    5·1 answer
  • Both of janies parents have dark hair. how likely is janie to have blonde hair? ​
    8·1 answer
  • What does Le Châtelier's principle say about upsetting a system at
    7·1 answer
  • If there are 12 people, and each person has 4 coins, there are ____ times as many coins as people.
    11·1 answer
  • What is the area beyond the black hole where the black hole has stopped expanding and matter will no longer be pulled in?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!