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grigory [225]
3 years ago
13

How many moles of cf4 are there in 171g of cf4 ?

Chemistry
2 answers:
Hunter-Best [27]3 years ago
8 0
Convert grams of CF4 to moles by using its molar mass (AKA the masses of all the elements in the compound). Its molar mass is (4(molar mass of F) + 1(molar mass of C)), which is approx. 88.00 grams/mole. Using this, you can set up a proportion or do a quick multiplication using unit analysis, but either way you get about 1.9431 moles.
xeze [42]3 years ago
5 0
1 is + 4  = to n please
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Please help!!
prisoha [69]
A word equation is a written description of a chemical reaction.
All word equations start with the reactants.
Then, what comes next is the word "react to form."
Finally, the products of the equation are mentioned.
An example is,
Zinc and Hypochondriac acid react to form hydrogen gas and zinc chloride.
3 0
3 years ago
What is the mass of 0. 513 mol Al2O3? Give your answer to the correct number of significant figures. (Molar mass of Al2O3 = 102.
Margarita [4]

The mass of a 0.513 mol of Al2O3 is 52.33g.

HOW TO CALCULATE MASS:

The mass of a substance can be calculated by multiplying the molar mass of the substance by its number of moles. That is;

mass of Al2O3 = no. of moles of Al2O3 × molar mass of Al2O3

According to this question, there are 0.513 moles of Al2O3.

Mass of Al2O3 = 0.513 × 102

Mass of Al2O3 = 52.33g

Therefore, the mass of a 0.513 mol of Al2O3 is 52.33g.

Learn more about mass calculations at: brainly.com/question/8101390?referrer=searchResults

7 0
2 years ago
Which statement describes both homogeneous mixtures and heterogeneous mixtures?
Mamont248 [21]
I believe the answer is D
4 0
3 years ago
If 9.5 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂ that is produced?
Leno4ka [110]

Answer:

6.9428 kg of CO2

Explanation:

1) Use Avogadro's number that states 1 mole = 6.022 x 10^23 particles. Convert 9.5 x 10^25 molecules into moles.

9.5 x 10^25 CO2 moleculesx\frac{1 mole CO2}{6.022 x 10^23} = 157.75 moles CO2

2) Convert 157.75 moles of CO2 into grams. CO2's molar mass is 44.01g.

157.75moles CO2 x \frac{44.01g/mol}{1 mole CO2} = 6942.79g

3) Convert 6942.79 grams into kilograms (divide by 1000):

6.9428 kg

4 0
2 years ago
Which of the following is true about the two atoms below?
nordsb [41]

Answer:

Different Number of neutrons.

4 0
2 years ago
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