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
MAXImum [283]
3 years ago
8

WILL MARK YOU BRAINLIEST AND GIVE YOU 15 POINTS!!

Chemistry
2 answers:
Doss [256]3 years ago
5 0

The answer to your question is a

sdas [7]3 years ago
5 0

1 mole of a gas at STP occupies volume = 22.4 L

And

1 mole of of an element has a mass = Gram molecular mass (if it is molecule and O2 at STP is a molecule O2) = 2 x (atomic mass) =2 x 16 = 32 g

Since 22.4 L at STP = 1 mole =32 g of O2.

Note:

Some gases are monoatomic (like He,Ar,Kr,Xe, etc) in these case 1 mole of gas ay STP will have mass equal to their gram atomic mass.

You might be interested in
One person is pulling with a force of 250 newtons and the other person is pulling with a force of 200 newtons. The total force o
dangina [55]

Answer:

450

Explanation:

i add the 200 to 250

200

+250

450

6 0
3 years ago
If the mass of monomer 105 atomic mass units, find the mass of a polymer contianing 122 monomers
sukhopar [10]
<span>12810 atomic mass units
   Since a monomer is the basic building block of a polymer, we just need to multiply the mass of the monomers by the number of monomers used. So 105 atomic mass units * 122 = 12810 atomic mass units</span>
3 0
3 years ago
A) An iron nail is attracted to a magnet.
11111nata11111 [884]

there's no question on here

4 0
3 years ago
Read 2 more answers
A particular first-order reaction has a rate constant of 1.35 × 102 s-1 at 25.0°C. What is the magnitude of k at 95.0°C if Ea =
never [62]

Answer:

k ≈ 9,56x10³ s⁻¹

Explanation:

It is possible to solve this question using Arrhenius formula:

ln\frac{k2}{k1} = \frac{-Ea}{R} (\frac{1}{T2} -\frac{1}{T1} )

Where:

k1: 1,35x10² s⁻¹

T1: 25,0°C + 273,15 = 298,15K

Ea = 55,5 kJ/mol

R = 8,314472x10⁻³ kJ/molK

k2 : ???

T2: 95,0°C+ 273,15K = 368,15K

Solving:

ln\frac{k2}{k1} = 4,257

\frac{k2}{k1} = 70,593

{k2} = 9,53x10^3 s^{-1}

<em>k ≈ 9,56x10³ s⁻¹</em>

I hope it helps!

5 0
3 years ago
How do you balance this Chemical Equation? <br>C5H12O + O2 = CO2 + H2O​
ICE Princess25 [194]

Answer:

The chemical equation by putting, a 2 on C₅H₁₂O, 15 on O₂, 10 on CO₂ , and 12 on H₂O in the equation;

2C₅H₁₂O + 15O₂ → 10CO₂ + 12H₂O​

Explanation:

  • Chemical equations are balanced by putting coefficients on the reactants and products to ensure the total number of atoms on the left side equal to those on the right side.
  • Balancing chemical equations is done to make chemical equations obey the law of conservation of mass.
  • According to the law of conservation of mass, the mass of the reactants should always be equal to the mass of products.
  • This is done by balancing chemical equations to ensure the total number of atoms on the left side is equal to that on the right side.
  • Therefore, the balanced equation is;

          2C₅H₁₂O + 15O₂ → 10CO₂ + 12H₂O​

3 0
3 years ago
Other questions:
  • Identify three physical properties of ionic compounds that are associated with ionic bonds
    12·1 answer
  • A _________ is the distance light travels in one year. How many miles is this?
    15·2 answers
  • Which of these is a harmful interaction?
    7·1 answer
  • Considering a mixture of soil and water and compare it to a colloid, such as milk. Which property best differentiates these two
    6·2 answers
  • Phosphoric acid is a triprotic acid with the following pKa values:pKa1=2.148, pKa2=7.198, pKa3=12.375You wish to prepare 1.000 L
    12·1 answer
  • The solubility of calcium oxalate, CaC2O4, in pure water is 4.8 × 10‑5 moles per liter. Cal­culate the value of Ksp for silver c
    11·1 answer
  • After oil is naturally refined underground, the only way that a viable deposit of hydrocarbons can form is if the oil encounters
    10·1 answer
  • What is the nomenclature of wood?
    11·1 answer
  • The colision of two plates causes the fomation of _____<br> mountain
    8·1 answer
  • OMG PLS HELP ASAP!! It’s my FINAL and I need help. PLS!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!