How many molecules are in 3.0 moles of O2

1 answer:

5 0

Answer: " 1.8 * 10²⁴ molecules of O₂ " .
________________________________________

3.0 moles O₂ * (6.02 * 10²³ molecules O₂ / 1 mol O₂) =

[ (3.0) *(6.02 * 10²³) ] molecules O₂
= 1.806 * 10²⁴ ; round to 2 significant figures.
= 1.8 * 10²⁴ molecules of O₂ .
______________________________________________________

You might be interested in

A airliner has an internal pressure of 1.00 ATM and temperatures of 25°C at take off if the temperature of the airlines routes t

Georgia [21]

Answer:

Explanation:

Using Gay lussac's law equation as follows;

P1/T1 = P2/T2

7 0

3 years ago

Maurels

lora16 [44]

<h2>Answer:</h2>

the force of gravity turn that potential energy into enough kinetic energy to topple a domino larger than its self.

Explanation:

HOPE ITS HELP

AND MARK ME AS BRAINLIST

6 0

2 years ago

Help me get it right and no links

Elena L [17]

Answer:sorry

Explanation:

7 0

3 years ago

Read 2 more answers

Given the balanced equation representing a reaction: 2h2o(l) + 571.6 kJ -> 2h2(g) + o2(g). What occurred as a result of this

Ivan

Answer: option D) energy was absorbed and entropy increased.

Explanation:

1) Given balanced equation:

2H₂O (l) + 571.6 kJ → 2 H₂ (g) + O₂(g).

2) Being the energy placed on the side of the reactants means that the energy is used (consumed or absorbed). This is an endothermic reaction.

So, the first part is that energy was absorbed.

3) As for the entropy, it is a measure of the disorder or radomness of the system.

Since, two molecules of liquid water were transformed into three molecules of gas, i.e. more molecules and more kinetic energy, therefore the new state has a greater degree of radomness, is more disordered, and you conclude that the entropy increased.

With that, you have shown that the right option is D) energy was absorbed and increased.

7 0

4 years ago

4 Which form of energy is stored in this

Alex777 [14]

Answer: (F) chemical energy

Explanation:

3 0

3 years ago