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
lutik1710 [3]
2 years ago
8

You have a sample of 75.6 g of C3Hg. How many moles of C3Hg are in the sample?

Chemistry
1 answer:
Liono4ka [1.6K]2 years ago
8 0

Answer:

0.3195 mole

Explanation:

Number of moles of C3Hg

= mass ÷ molar mass

= 75.6 g ÷ (12 + 12 + 12 + 200.6)

= 75.6 g ÷ 236.6

= 0.3195 mole

You might be interested in
How do i salve 50,200 mL to L
sveta [45]
You will have divided 50200 by 1000000 which 0.0502
3 0
3 years ago
2H+ H- H+ n + energy
lbvjy [14]

from an external source of power

Explanation:

The energy needed for nuclear fusion comes from an external source of power.

Nuclear fusion is the combination of small sized atomic nuclei to form larger ones.

The reaction releases a huge amount of energy but also requires a large activation energy to start up.

  • The energy input require to drive two nuclei into fusion comes from an external source.
  • Nuclear fusion has a high activation energy which serves as the energy barrier for this reaction to take place.
  • The energy comes from the surrounding and once initiated, spontaneous chain reactions are set up.

learn more:

Nuclear reactions brainly.com/question/10094982

#learnwithBrainly

5 0
3 years ago
The Law of Conservation of Matter describes how mass is not lost during a chemical reaction.
weeeeeb [17]

False, it states that matter can be nether created nor destroyed

7 0
2 years ago
Read 2 more answers
For the reaction below, initially the partial pressure of all 3 gases is 1.0atm. . 2NH3(g)--> N2(g) + 3H2(g) K, 0.83 1. When
erma4kov [3.2K]

Answer:

The reaction would shift toward the reactants

When the reaction reach equilibrium the partial pressure of NH3 will be greater than 1atm

Explanation:

For the reaction:

2NH₃(g) ⇄ N₂(g) + 3H₂(g)

Where K is defined as:

K = \frac{P_{N_{2}}*P_{H_2}^3}{P_{NH_3}^2} = 0.83

As initial pressures of all 3 gases is 1.0atm, reaction quotient, Q, is:

Q = \frac{1atm*{1atm}^3}{1atm^2} = 1

As Q > K, <em>the reaction will produce more NH₃ until Q = K consuming N₂ and H₂.</em>

Thus, there are true:

<h3>The reaction would shift toward the reactants</h3><h3>When the reaction reach equilibrium the partial pressure of NH3 will be greater than 1atm</h3>

<em />

4 0
3 years ago
Please help me thanks
Digiron [165]

Answer:

your finger becomes negatively charged

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which statements are true of geothermal energy? Check all that apply.
    12·2 answers
  • How does radiocarbon (or uranium) dating help us better understand the world
    15·1 answer
  • Suppose you start with 1.80 g of mgco3·5h2o, after complete dehydration how many grams of the sample do you have remaining?
    9·1 answer
  • Part a what happens to these physical properties as the strength of intermolecular forces increases? drag each item to the appro
    12·2 answers
  • Given the reaction: mg(s) 2 agno3(aq)--&gt; mg(no3)2(aq) 2 ag(s) which type of reaction is represented? (1) single replacement (
    8·1 answer
  • Easy Question! Chemistry - Please help! I give thanks - It's the picture - Question 2
    12·1 answer
  • The electrons in an atom's outermost energy level are called: Electron dots. Quantum electrons. Valence electrons. Noble-gas ele
    11·1 answer
  • What are mixtures that have floating particles called?
    15·2 answers
  • when an atomic ion or molecule of a recant switches places with an unpaired recant the type of reaction is called
    6·1 answer
  • Serotonin acts as a weak base and has a pkb = 3. 84. what is the ph of a solution made by adding 0. 025 m of serotonin in water?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!