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
chubhunter [2.5K]
3 years ago
7

How many grams of o2 are in a 5.0 mol of the oxygen gas?

Chemistry
1 answer:
allsm [11]3 years ago
4 0
We are tasked to find the amount of O2 in grams given only the number of moles of oxygen gas. To solve the problem, we need first to calculate the molecular weight of oxygen. Based on the periodic table, elemental oxygen has a molecular weight of 16 g/mol. Thus its molecular weight is,
O2=16.0g/mol (2)=32 g/mol

To solve for the amount of compound oxygen in grams, we have,
O2 (g)=5 mol x 32 g/mol =160 g.

This cancel out the mols both in the numerator and denominator leaving only the g as a unit. Therefore, 5 mols of oxygen is equal to 160 g of oxygen.
You might be interested in
Why is it better to allow the solvent front to move almost to the top of a paper strip rather than stopping it at the halfway po
m_a_m_a [10]

Answer:

To allow all the elements or compounds to separate complete.

Explanation:

In chromatography, the compounds need some space and time to separate, one from each other, if you  just use the half of the paper strip maybe you will not notice the different spots of compounds. Remember all the substances have different affinity for the solvents, that means, some react very quickly but others need more time as the colors that conform the black color in an ink.

4 0
3 years ago
A blank is 2 or more substances that are together in the same place but are not chemically combined.
hammer [34]

A mixture is a material system made up of two or more different substances, which are mixed but not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities of the individual substances are retained.

Hope this helps!

Please give brainliest!

7 0
3 years ago
What is the mass of 1.7 × 1023 atoms of zinc
fiasKO [112]

We are given with a compound, Zinc (Zn) having a 1.7 x 10 ^23 atoms. We are tasked to solve for it's corresponding mass in g. We need to find first the molecular weight of Zinc, that is

Zn= 65.38 g/mol

Not that 1 mol=6.022x10^{23} atoms, hence,

1.7 x 10 ^23 atoms x 1 mol/6.022x10^{23} atoms x65.38 g/ 1mol

=18.456 g of Zn

 

Therefore, the mass of Zinc 18.456 g

3 0
3 years ago
MULTIPLE CHOICE
adelina 88 [10]

Answer:

C 2

Explanation:

2Nal + Cl2 → 2NaCl + I2

This is balanced equation

6 0
3 years ago
What is physical since ?
uysha [10]
You mean physical science?
3 0
2 years ago
Read 2 more answers
Other questions:
  • What part of fungi resembles the roots of plants?
    6·1 answer
  • How has the scientific community addressed the safety of chemicals?
    14·1 answer
  • If the density of an object is 5 g/cm3 and it takes up 7 cm3 of space, calculate the mass?
    8·1 answer
  • How many valance Elton’s does aluminum have
    11·2 answers
  • Oil is a natural resource that is found inside of Earth. Oil can be used
    10·1 answer
  • PLEASE HELP What's the mass in grams of 0.442 moles of calcium bromide, CaBr2? The atomic
    11·1 answer
  • 0.2640 g of sodium oxalate is dissolved in a flask and requires 30.74 mL of potassium
    15·1 answer
  • A ball is kicked straight up. The ball's speed decreases as it moves upward. Why does the ball's
    7·1 answer
  • How many grams of Zn(NO3) are in 3.67 miles?
    10·1 answer
  • In a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes. Determine the average relative atomic
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!