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4 years ago

Consider the reaction below.

Chemistry

2 answers:

11111nata11111 [884]4 years ago

5 0

Wrong answer. s/b H2O and H3O+

marin [14]4 years ago

4 0

Answer : The correct option is $H_2O\text{ and }H_3O^+$

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

The given equilibrium reaction will be,

$H_2PO_4^-+H_2O\rightleftharpoons H_3O^++HPO_4^{2-}$

In this reaction, $H_2PO_4^-$ and $H_2O$ are acid and base and $H_3O^+$ and $HPO_4^{2-}$ are conjugate acid and base respectively.

From this we conclude that, $H_2O\text{ and }H_3O^+$ is a base-conjugate acid pair.

Hence, the correct option is $H_2O\text{ and }H_3O^+$

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A piston containing 0.120moles of methane gas, CH4, has a volume of 2.12liters. If methane is added until the volume is increase

earnstyle [38]

Answer:

2.83 g

Explanation:

At constant temperature and pressure, Using Avogadro's law

$\frac {V_1}{n_1}=\frac {V_2}{n_2}$

Given ,

V₁ = 2.12 L

V₂ = 3.12 L

n₁ = 0.120 moles

n₂ = ?

Using above equation as:

$\frac{2.12}{0.120}=\frac{3.12}{n_2}$

$2.12n_2=0.12\cdot \:3.12$

$2.12n_2=0.3744$

$n_2=\frac{0.3744}{2.12}$

$n_2=0.17660$

n₂ = 0.17660 moles

Molar mass of methane gas = 16.05 g/mol

So, Mass = Moles*Molar mass = 0.17660 * 16.05 g = 2.83 g

2.83 g are in the piston.

8 0

4 years ago

When a mixture of oxygen and hydrogen is ignited in a test tube, the reaction shown occurs. Hydrogen + Oxygen → Water + Energy S

grin007 [14]

Answer:

products

Explanation:

In chemistry, chemical reactions is the combination of two or more substances to yield other substances. The substances that react is called REACTANTS while the substances formed after the reaction is called PRODUCTS.

According to this question, a mixture of oxygen and hydrogen is ignited in a test tube as follows:

Hydrogen + Oxygen → Water + Energy

In this reaction, the substances being combined (usually found on the left side of the equation) are hydrogen and oxygen. Hence, oxygen and hydrogen are REACTANTS. Also, the substances produced as a result of the reaction is water (H2O). The PRODUCTS of the reaction is WATER.

5 0

3 years ago

Read 2 more answers

What is used in chemistry/science to heat or warm something?

DENIUS [597]

Several pieces of equipment can do this, including the Bunsen burner, laboratory oven, hot plate and incubator.

4 0

3 years ago

Read 2 more answers

A piece of double stranded DNA has 44% C, what will be the % of G? Use Chargaff's Rules.

Kipish [7]

The G=56% because 44% is what’s left of the %