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3 years ago

How many molecules are in 4.545 moles of carbon dioxide (CO2)

Chemistry

1 answer:

Firdavs [7]3 years ago

7 0

Answer:

27.3699 x 10^23

Explanation:

Just do 4.545 x 6.022 x 10^23

1 mole of any substance = 6.022 x 10^23 molecules.

$4.545 \times 6.022 \times 10 {}^{23}$

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Plumbers, welders, or glass blowers often use the gas acetylene (C2H2) because it burns in oxygen with a very hot flame. The pro

solmaris [256]

Answer:

Unbalanced equation: $C_{2}H_{2}(g)+O_{2}(g)\rightarrow CO_{2}(g)+H_{2}O(g)$

Explanation:

Acetylene reacts with oxygen to produce carbon dioxide and water vapor.
Here reactants are acetylene and oxygen. Here products are carbon dioxide and water vapor.
We know that physical state of water vapor is gas. Therefore each and every reactants and products are gaseous.
States of the species in unbalanced equation is represented inside parentheses with an abbreviation "g" for gaseous state.
Unbalanced equation: $C_{2}H_{2}(g)+O_{2}(g)\rightarrow CO_{2}(g)+H_{2}O(g)$

5 0

3 years ago

Name for this compound Ag2O

Andrew [12]

it is silver oxide my friend mark as brainlest t

tthanxxxxx

silver oxide

Silver oxide is the chemical compound with the formula Ag₂O. It is a fine black or dark brown powder that is used to prepare other silver compounds

4 0

3 years ago

Read 2 more answers

The rate constant for this first‑order reaction is 0.0350 s − 1 0.0350 s−1 at 400 ∘ C. 400 ∘C. A ⟶ products A⟶products After how

In-s [12.5K]

Answer:

After 48.84 s, 18.1% of the reactant will remain.

Explanation:

Given that:

The rate constant, k = 0.0350 s⁻¹

Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

Where,

$[A_t]$ is the concentration at time t

$[A_0]$ is the initial concentration

Given:

18.1 % of the reactant remain which means that 0.181 of $[A_0]$ is remained. So,

$\frac {[A_t]}{[A_0]}$ = 0.181

t = ?

$\frac {[A_t]}{[A_0]}=e^{-k\times t}$

$0.181=e^{-0.0350\times t}$

t = 48.84 s

<u>After 48.84 s, 18.1% of the reactant will remain.</u>

6 0

3 years ago

When the reaction 2o3(g) 3o2(g), for which kp = 3. 0 × 1026 at 773ºc, is at equilibrium, the mixture will contain very little o2

TiliK225 [7]

False

Equilibrium in chemistry is the state that exists when a chemical response and its contrary response be at the same rates.

Chemical equilibrium is a state during a reversible chemical process in which there's no net change in the proportions of reactants and products. This noun originates from Latin and is called aequilbrium.

When a chemical response is reversible, the products reply with the original reactants as soon as they're created.

What's equilibrium?

A system is at an equilibrium when all of its external forces are in balance. When a system is in equilibrium, nothing happens. The term has been applied to a variety of ideas from numerous academic disciplines. For liquids, hydrostatic equilibrium applies. Equilibrium is characterized as a state of equilibrium or a stable situation in which disagreeing forces balance one another eschewal and no changes are taking place. In terms of economics, equilibrium occurs when force and demand are equal. When you're composed and steady, you're in an equilibrium state. Homogenous and heterogenous equilibrium are the two forms of equilibrium that live. The form of equilibrium known as homogenous equilibrium occurs when the reactant and the product are both present in the same phase. The climate, atmosphere, and The system's attention and other variables all have an impact on equilibrium.

When one of these variables changes, the system's equilibrium is worried and it readjusts itself until it reaches equilibrium again.

To learn more about equilibrium click on given link given below

brainly.com/question/517289

#SPJ4

6 0

1 year ago

In order for work to be done on an object, what must happen to the object?

givi [52]

The object must get displaced ( change in position ) due to any external force.

W = Fd ( scalar form )

There are other types of work that can be done on an object.

4 0

3 years ago