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2 years ago

According to the arrhenius concept, the

1 answer:

8 0

According to the Arrhenius concept, the strength of an acid depends upon the H⁺ ions furnished by the acid.

<h3>What is the Arrhenius theory of acids?</h3>

According to the Arrhenius theory, acids are those substance which will give H⁺ ion in an aqueous solution.

And acidity of any substance will be calculated by using the pH value which can be calculated as pH = -log[H⁺].

Hydrolysis will not able to define the strength of the acid.
Concentration of the acid is also not valid to define the strength of the acid because all acids will not have H⁺ ion.
Number of moles of the base which are used for neutralization is also not used to define the strength of Arrhenius acid.

Hence H⁺ ions furnished by the acid is used to define the strength of Arrhenius acid.

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when 6.0 mol of oxygen are confined in a 36L vessel at 196°c, the pressure is 8atm. what is the new pressure for oxygen expands

kykrilka [37]

<u>Answer:</u> The new pressure for oxygen gas is 6 atm.

<u>Explanation:</u>

To calculate the new pressure of the gas, we use the equation given by Boyle's Law.

This law states that the pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

Mathematically,

$P\propto \frac{1}{V}$

or,

$P_1V_1=P_2V_2$

where,

$P_1\text{ and }V_1$ are the initial pressure and volume of the gas.

$P_2\text{ and }V_2$ are the final pressure and volume of the gas.

We are given:

$P_1=8atm\\V_1=36L\\P_2=?atm\\V_2=48L$

Putting values in above equation, we get:

$8atm\times 36L=P_2\times 48L\\\\P_2=6atm$

Hence, the new pressure for oxygen gas is 6 atm.

8 0

2 years ago

Please help!!!!!!!!!

Alika [10]

Answer

At the crust

Explanation:

Mantle is far away from it unless its in a ocean.

3 0

2 years ago

Read 2 more answers

What volume of o2 is needed to react fully with 720. Ml of nh3

Galina-37 [17]

Ammonia undergoes combustion with oxygen to produce nitric oxide and water. The volume of the oxygen required to react with 720 ml of ammonia is 900 ml.

<h3>What is volume?</h3>

Volume is the area occupied by the substance and is the ratio of the mass to the density.

At STP, 1 mole of gas occupies 22.4 L of volume

Given,

Volume of ammonia reacted = 0.720 L

The combustion reaction is shown as,

$\rm 4NH_{3} + 5O_{2} \rightarrow 4NO +6H_{2}O$

From the stoichiometry of the reaction, it can be said that,

$(4 \times 22.4)$ L of ammonia reacts with $(5 \times 22.4)$ L of oxygen gas.

So, 0.720 L of ammonia will react with:

$\dfrac{ (5 \times 22.4)}{(4 \times 22.4)} \times 0.720 = 0.9 \;\rm L$

Therefore, the volume of oxygen required is 900 mL.

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6 0

2 years ago

According to kinetic-molecular theory, which of the following would not be considered an ideal gas? Check all that apply.

Vikki [24]

Answer:

are a gas at very low volumes, when gas particles are very close together

a gas at very low temperatures, when gas particles have very little kinetic energy

a gas with highly polar molecules that have very strong intermolecular forces

Explanation:

4 0

3 years ago

Read 2 more answers

You have 100 g of Pb(NO3)2. How many moles is this?

topjm [15]

Answer:

0.302 moles

Explanation:

Data given

Mass of Pb(NO₃)₂ = 100 g

Moles of Pb(NO₃)₂ = ?

Solution:

To find mole we have to know about molar mass of Pb(NO₃)₂

So,

Molar mass of Pb(NO₃)₂ = 207 + 2[14 + 3(16)]

= 207 + 2[14 + 48]

= 207 + 124

Molar mass of Pb(NO₃)₂ = 331 g/mol

Formula used :

no. of moles = mass in grams / molar mass

Put values in above formula

no. of moles = 100 g / 331 g/mol

no. of moles = 0.302 moles

no. of moles of Pb(NO₃)₂ = 0.302 moles

7 0

3 years ago