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xeze [42]
3 years ago
6

A carbon compound X turns blue litmus to red and has a molecular formula C2H4O2.Identify X and draw its structure.Write a chemic

al equation for the reaction and name of the product formed in each case when X reacts with
a. ethanol in the presence of conc.H2SO4 (
b. sodium carbonate
Chemistry
2 answers:
Andrew [12]3 years ago
8 0

<u>Answer:</u> Substance X is ethanoic acid and the reactions are given below.

<u>Explanation:</u>

A compound having molecular formula of C_2H_4O_2 which turns blue litmus to red is considered as an acid.

The compound is ethanoic acid which is generally termed as acetic acid.

Thus, the compound X is acetic acid.

The chemical equations for the reaction of X with

  • a. <u>Ethanol in the presence of H_2SO_4</u>

When acetic acid reacts with etahnol in the presence of an acid, it leads to the formation of a fruity smelling compound known as ester which is ethyl acetate.

CH_3COOH+CH_3CH_2OH\xrightarrow[]{H_2SO_4}CH_3COO-CH_2CH_3+H_2O

  • b. <u>Sodium carbonate</u>

When acetic acid reacts with sodium carbonate, it leads to the formation of sodium acetate, carbon dioxide and water.

2CH_3COOH+Na_2CO_3\rightarrow 2CH_3COONa+CO_2+H_2O

Cerrena [4.2K]3 years ago
4 0
<span>X is acetic acid or CH3COOH Acetic acid belongs to the homologous series; alkanoic acids; which are group of weak acids. They react with alkanols or alcohols to form esters or what we call alkyl alkanoates in presence of concentrated sulfuric acid. Additionally, they react with carbonates to yield a salt, water and carbon dioxide gas.
(a) Acetic acid reacts with ethanol to form ester in presence of concentrated sulphuric acid (H2SO4) CH3COOH + C2H5OH ----------------------> CH3COOC2H5 + H2O Product formed is Ethyl ethanoate or ethyl acetate.

(b) The reaction will be; Na2CO3 + 2CH3COOH ---------> 2CH3COONa + H2O + CO2 Effervescence will be observed due to the production of Carbon dioxide gas.</span>
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A gas under an initial pressure of 0.60 atm is compressed at constant temperature from 27 L to 3.0 L. The final pressure becomes
IRINA_888 [86]

Answer: 5.4

Explanation:

P2 = P1V1/V2

P2 = (.60atm x 27L) / 3.0L  = 5.4atm

8 0
3 years ago
In subsequent experiments you determine that the compound is iron (II) chloride. Which of the following properties would you als
Naddika [18.5K]

Answer:

b. Conducts electricity when dissolved in water

Explanation:

Iron(II) chloride, is the chemical compound with formula FeCl2.

It is a solid with a high melting point of about 677 degree Celsius or 950 K when in anhydrous form but have lower melting point in hydrated form.

The compound is often off-white. FeCl2 crystallizes from water as the greenish tetrahydrate, which is the form that is most commonly encountered in the laboratory.

There is also a dihydrate. The compound is highly soluble in water, giving pale green solutions.

7 0
3 years ago
A chemist sets up a chemical reaction but finds that none of the reactant molecules have a required activation energy. What is t
Anvisha [2.4K]

Activation energy is the minimum amount of energy that the colliding reactant molecules must possess for the formation of products. Lower the activation energy, higher will be chance of formation of products. So activation energy is the minimum energy requirement that has to overcome for the reaction to be completed. Therefore, when in a chemical reaction the reactant molecules do not collide with required activation energy, the collisions will not be fruitful even if they are properly oriented which means that the products will not form.

Hence the correct answer will be B.) no products will be formed

5 0
3 years ago
Read 2 more answers
g When aqueous solutions of and are mixed, a solid forms. Determine the mass of solid formed when 140.7 mL of 0.1000 M is mixed
solong [7]

The question is incomplete, the complete question is:

When aqueous solutions of NaCl and Pb(NO_3)_2 are mixed, a solid forms. Determine the mass of solid formed when 140.7 mL of 0.1000 M NaCl is mixed with an excess of an aqueous solution of

<u>Answer:</u> The mass of lead chloride produced is 1.96 g

<u>Explanation:</u>

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

\text{Molarity of solution}=\frac{\text{Moles of solute}\times 1000}{ \text{Volume of solution (mL)}} .....(1)

Given values:

Molarity of NaCl = 0.1000 M

Volume of the solution = 140.7 mL

Putting values in equation 1, we get:

0.1000=\frac{\text{Moles of NaCl}\times 1000}{140.7}\\\\\text{Moles of NaCl}=\frac{0.1000\times 140.7}{1000}=0.01407mol

The chemical equation for the reaction of NaCl and lead nitrate follows:

Pb(NO_3)_2(aq)+2NaCl(aq)\rightarrow PbCl_2(s)+2NaNO_3(aq)

By the stoichiometry of the reaction:

If 2 moles of NaCl produces 1 mole of lead chloride

So, 0.01407 moles of NaCl will produce = \frac{1}{2}\times 0.01407=0.007035mol of lead chloride

The number of moles is defined as the ratio of the mass of a substance to its molar mass.

The equation used is:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}} ......(2)

Molar mass of lead chloride = 278.1 g/mol

Plugging values in equation 2:

\text{Mass of lead chloride}=(0.007035mol\times 278.1g/mol)=1.96g

Hence, the mass of lead chloride produced is 1.96 g

8 0
3 years ago
Please answer ASAP!!
Alenkasestr [34]

Answer:

C.0.28 V  

Explanation:

Using the standard cell potential we can find the standard cell potential for a voltaic cell as follows:

The most positive potential is the potential that will be more easily reduced. The other reaction will be the oxidized one. That means for the reactions:

Cu²⁺ + 2e⁻ → Cu E° = 0.52V

Ag⁺ + 1e⁻ → Ag E° = 0.80V

As the Cu will be oxidized:

Cu → Cu²⁺ + 2e⁻

The cell potential is:

E°Cell = E°cathode(reduced) - E°cathode(oxidized)

E°cell = 0.80V - (0.52V)

E°cell = 1.32V

Right answer is:

<h3>C.0.28 V </h3>

<h3 />

4 0
2 years ago
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