All categories

2 years ago

How many grams of O2 are produced as 0.033 mol of water decompose

Chemistry

1 answer:

PolarNik [594]2 years ago

6 0

Answer: This can be quickly solved with "traintracks"

Explanation:

You start w/ grams of water and want to find moles of oxygen gas produced.

So you want to Convert:

Grams of water -> moles of water -> moles of oxygen gas.

The two things you need to know to set up the tracks are:

1)Molar mass of water- H2O

Hydrogen - 1.008(x2)

Oxygen - 16.00

Water - 18.016

You might be interested in

What is the chemical equation for diphosphorus trioxide + water ---> phosphorous acid?

Dmitriy789 [7]

Your answer is $P_{2}O_{3}+3H_{2}O\rightarrow\ 2H_{3}PO_{3}$

but if you are looking for some explanation check description below :)

Diphosphorus trioxide formula is:

$P_{2}O_{3}$

Di stands from 2 atoms of something, in this case we have 2 atoms of Phosphorus.

Trioxide means that we have 3 atoms of oxygen in this substance that's why we have: $P_{2}O_{3}$

And water is just $H_{2}O$

Unbalanced formula is:

$P_{2}O_{3}+H_{2}O\rightarrow\ H_{3}PO_{3}$

Now we need to balance this equation

On left hand side we have 2 atoms of Phosphorus, on right hand side we have just one atom of Phosphorus, that's why we need to put 2 before $H_{3}PO_{3}$

Now we need to count all atoms of oxygen and hydrogen and make it equal on both side.

So we need to put 3 on left hand side before water to make this equation balanced.
That's why correct answer is:
$P_{2}O_{3}+3H_{2}O\rightarrow\2H_{3}PO_{3}$

6 0

2 years ago

a nickel atom (atomic symbol Ni) has an atomic number of 28 and has an atomic mass of 59. how many neutrons does it have ??

shusha [124]

Answer: 31 neutrons

Explanation:

8 0

2 years ago

At 311 K, this reaction has a K c value of 0.0111 . X ( g ) + 2 Y ( g ) − ⇀ ↽ − 2 Z ( g ) Calculate K p at 311 K. Note that the

Aleks [24]

Answer:

$K_{p}=4.35\times 10^{-4}$

Explanation:

We know, $K_{p}=K_{c}(RT)^{\Delta n}$

where, R = 0.0821 L.atm/(mol.K), T is temperature in kelvin and $\Delta n$ is difference in sum of stoichiometric coefficient of products and reactants

Here $\Delta n=(2)-(2+1)=-1$ and T = 311 K

So, $K_{p}=(0.0111)\times [(0.0821L.atm.mol^{-1}.K^{-1})\times 311K]^{-1}=4.35\times 10^{-4}$

Hence value of equilibrium constant in terms of partial pressure $(K_{p})$ is $4.35\times 10^{-4}$

4 0

2 years ago

What is heat?<br> O Fire<br> O Hot<br> O Energy<br> O Potential

Law Incorporation [45]

Answer:

Energy

Explanation:

Heat is a form of energy.

5 0

2 years ago

Most oxygen in our atmosphere _____. has two oxygen atoms has three oxygen atoms combines with carbon has a single oxygen atom

Morgarella [4.7K]

Answer:

has Two oxygen atoms

Explanation:

Oxygen is a diatomic element hence exists as O2 for majority of its existence in our atmosphere. Although small portion does exist in form of O3 which protects earth from sun's harmful ray, the majority portion of oxygen has O2 which is the oxygen we breathe.

8 0

2 years ago