All categories

2 years ago

12.4 g of phosphorus reacts with 9.6 g of oxygen.

Chemistry

1 answer:

vaieri [72.5K]2 years ago

7 0

Answer:

D 4P +3O₂ → 2 P₂O₃

Explanation:

In this problem, we need to convert the mass of phosphorus and oxygen to moles trying to find the ratio of reaction (The moles of P that reacts per mole of O₂):

<em>Moles P:</em>

12.4g P * (1mol P / 31g) = 0.4 moles

<em>Moles O₂:</em>

9.6g * (1mol / 32g) = 0.3 moles

The ratio of reaction is:

0.4 mol / 0.3 mol = 1.33 = 4 moles of P / 3 moles of O₂

That means 4 moles of P react with 3 moles of O₂ and the reaction that represents this ratio is:

You might be interested in

A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode c

Andre45 [30]

<u>Answer:</u> The standard potential of the cell is 0.77 V

<u>Explanation:</u>

We know that:

$E^o_{Ni^{2+}/Ni}=-0.25V\\E^o_{Cu^{+}/Cu}=0.52V$

The substance having highest positive $E^o$ reduction potential will always get reduced and will undergo reduction reaction.

The half reaction follows:

<u>Oxidation half reaction:</u> $Ni(s)\rightarrow Ni^{2+}(aq)+2e^-$

<u>Reduction half reaction:</u> $Cu^{+}(aq)+e^-\rightarrow Cu(s)$ ( × 2)

To calculate the $E^o_{cell}$ of the reaction, we use the equation:

$E^o_{cell}=E^o_{cathode}-E^o_{anode}$

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

Putting values in above equation follows:

$E^o_{cell}=0.52-(-0.25)=0.77V$

Hence, the standard potential of the cell is 0.77 V

5 0

2 years ago

What does kinetic molecular theory mean

oee [108]

Answer: gas particles that are in constant motion and exhibit perfectly elastic collisions

Explanation:

8 0

2 years ago

Read 2 more answers

Find the area shaded in yellow.<br> [ ? ] square units

slega [8]

Answer:

A(yellow) = 52

Explanation:

A(yellow) = A(total) - A(red)

= 11×6 - 7×2

= 66 - 14

= 52

6 0

3 years ago

“When an animal looks a lot like another animal, even though they’re not the same kind of creature at all, it’s called

WITCHER [35]

Answer:

cryptic biodiversity

Explanation:

8 0

2 years ago

In a nuclear fission reaction, a freely moving neutron is introduced to a nuclear fuel, such

insens350 [35]

In a nuclear fission reaction, a freely moving neutron is introduced to a nuclear fuel, then a neutron is absorbed by an atom's nucleus.

<h3>What is nuclear fission?</h3>

Nuclear fission is a process in which an unstable nuclei will convert into stable nuclei after releasing the energy in the form of particles.

When we introduce a freely moving neutron to the nuclear fuel of uranium-235 nuclei then this introduced neutron was absorbed by the nuclei and makes the nuclei more unstable. Then this unstable nuclei will convert into two nuclei in the addition of three neutrons.

Hence, a neutron is absorbed by an atom's nucleus.

To know more about nuclear fission, visit the below link:

brainly.com/question/14019172

#SPJ1

6 0

1 year ago