All categories

3 years ago

Ans with solution...

Chemistry

1 answer:

Licemer1 [7]3 years ago

3 0

Answer:

The answer to your question is:

Vol of NO2 = 11.19 L

Vol of O2 = 2.8 L

Explanation:

Data

N2O5 = 56 g

STP T = 0°C = 273°K

P = 1 atm

MW N2O5 = 216 g

Gases law = PV = nRT

Process

216 g of N2O5 ---------------- 1 mol

54 g ----------------- x

x = (54 x 1) / 216

x = 0.25 mol of N2O5

2 mol of N2O5 ----------------- 4 mol of NO2

0.25 mol ------------------ x

x = (0.25 x 4) / 2 = 0.5 mol of NO2

V = nRT/P

V = (0.5)(0.082)(273) / 1 = 11.19 L

2 mol of N2O5 ----------------- 1 O2

0.25 N2O5 ---------------------- x

x = (0.25 x 1) / 2 = 0.125 mol

Vol = (0.125)((0.082)(273) / 1 = 2.8 L

You might be interested in

An automated filling machine is used to fill bottles with liquid detergent. A random sample of 20 bottles results in a sample va

taurus [48]

Answer:

No, there is no evidence that the manufacturer has a problem with underfilled or overfilled bottles, due that according our results we cannot reject the null hypothesis.

Explanation:

according to this exercise we have the following:

σ^2 =< 0.01 (null hypothesis)

σ^2 > 0.01 (alternative hypothesis)

To solve we can use the chi-square statistical test. To reject or not the hypothesis, we have that the rejection region X^2 > 30.14

Thus:

X^2 = ((n-1) * s^2)/σ^2 = ((20-1)*0.0153)/0.01 = 29.1

Since 29.1 < 30.14, we cannot reject the null hypothesis.

4 0

3 years ago

Read 2 more answers

The following thermochemical equation is for the reaction of nitrogen(g) with oxygen(g) to form nitrogen dioxide(g). N2(g) + 2O2

Rzqust [24]

<u>Answer:</u> The mass of nitrogen gas reacted to produce given amount of energy is 5.99 grams.

<u>Explanation:</u>

The given chemical reaction follows:

$N_2(g)+2O_2(g)\rightarrow 2NO_2(g);\Delta H=66.4kJ$

We know that:

Molar mass of nitrogen gas = 28 g/mol

We are given:

Enthalpy change of the reaction = 14.2 kJ

To calculate the mass of nitrogen gas reacted, we use unitary method:

When enthalpy change of the reaction is 66.4 kJ, the mass of nitrogen gas reacted is 28 grams.

So, when enthalpy change of the reaction is 14.2 kJ, the mass of nitrogen gas reacted will be = $\frac{28}{66.4}\times 14.2=5.99g$

Hence, the mass of nitrogen gas reacted to produce given amount of energy is 5.99 grams.

8 0

3 years ago

In redox reactions, _____________ occurs when electrons are lost by a molecule. ______________ occurs when electrons are gained

madam [21]

Answer:

Oxidation, Reduction

Explanation:

A redox reaction is a short form for reduction-oxidation.

Reduction is a term which means that electron is gained while oxidation is a term which means that electron Is lost.

The species that gain electron is known as the oxidizing agent while the species losing electrons is known as the reducing agent

6 0

2 years ago

Why does the same side of the moon always face earth? A. The rotational period of earth is the same as that of the moon B. The r

mixer [17]

Answer: A. the rotational period of the earth is the same as that of the moon

3 0

3 years ago

Read 2 more answers

A hydrogen bond can occur between:

Readme [11.4K]

A hydrogen bond occurs between a hydrogen from one molecule and an oxygen from another molecule. Option D

<h3>What is the hydrogen bond?</h3>

The hydrogen bond is one that is responsible for association in molecules. It occurs when hydrogen is covalently bonded to a highly electronegative element such as oxygen, nitrogen or Sulphur.

Thus, a hydrogen bond occurs between a hydrogen from one molecule and an oxygen from another molecule. Option D

Learn more about hydrogen bonding:brainly.com/question/10904296?

#SPJ1

5 0

2 years ago