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Scrat [10]
3 years ago
13

Which weak acid solution has the greatest percent ionization? which weak acid solution has the greatest percent ionization? 0.14

0 m h2c6h6o6 0.700 m h2c6h6o6 0.0140 m h2c6h6o6?
Chemistry
1 answer:
sweet [91]3 years ago
5 0

Answer:

0.0140 M H₂C₆H₆O₆.

Explanation:

  • We should mention the relation: <em>Ka = α²C,</em>

Where, Ka is the dissociation constant of the acid.

α is the degree of ionization of the acid.

C is the concentration if the acid.

<em>The percent of ionization (α %) = α x 100.</em>

α = √Ka/C

∴ α is inversely proportional to the concentration of the acid.

<em>So, the acid with the lowest concentration has the greatest percent ionization.</em>

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When focused light is projected onto the retina, it stimulates the rods and cones. The retina then sends nerve signals are sent through the back of the eye to the optic nerve. The optic nerve carries these signals to the brain, which interprets them as visual images.
6 0
3 years ago
Which of the following factors affect the vapor pressure of a liquid? Check all that apply. View Available Hint(s) Check all tha
trasher [3.6K]

Answer:

Vapour pressure of liquid is affected by its TEMPERATURE, TYPE OF LIQUID, ADDITION OF SOLUTES.

Explanation:

Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid. Mathematically, the vapor pressure of liquid is written as:

In (Pvap) = -ΔHvap / R * (1/T) + C

ΔHvap is the enthalpy of vaporization and it is constant for specific liquid, T is the temperature and C is a constant. Temperature therefore affect the vapor pressure of a liquid as increase in temperature can cause an increase in vapor pressure.

The type of liquid also affect the vapor pressure. If the molecules bind to each other strongly in the liquid, it increases vapor pressure to be exerted by the liquid but if the type of liquid is one with weak forces of attraction, the vapor pressure is reduced.

Addition of solute to the liquid increases the boiling temperature of liquids thereby reducing it's vapor pressure.

6 0
3 years ago
Nitroglycerin is a dangerous powerful explosive that violently decomposes when it is shaken or dropped. The Swedish chemist Alfr
marshall27 [118]

<u>Answer:</u> The balanced chemical equation for the decomposition of nitroglycerin is written below.

<u>Explanation:</u>

Decomposition reaction is defined as the reaction in which a single large substance breaks down into two or more smaller substances.

Every balanced chemical equation follows law of conservation of mass.

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

The balanced chemical equation for the decomposition of nitroglycerin follows:

4C_3H_5N_3O_9(l)\rightarrow 12CO_2(g)+10H_2O(g)+6N_2(g)+O_2(g)

By Stoichiometry of the reaction:

1 mole of liquid nitroglycerin decomposes into 12 moles of carbon dioxide gas, 10 moles of gaseous water, 6 moles of dinitrogen gas and 1 mole of dioxygen gas.

Hence, the balanced chemical equation for the decomposition of nitroglycerin is written above.

3 0
4 years ago
A cupcake recipe designed to produce 18 cupcakes calls for 260 grams of
Vedmedyk [2.9K]

Answer:

317.7778 g

Explanation:

Given data:

Flour required for 18 cup cakes = 260 g

Flour required for 22 cup cakes = ?

Solution:

We will calculate the flour required for 1 cup cake.

260 g /18   = 14.4444 g

Fluor required for 22 cupcakes,

22× 14.4444 g = 317.7778 g

In short,

22 cupcake/18 cup cake×260 g = 317.7778 g

8 0
3 years ago
What is the name of the functional group that is attached to this hydrocarbon? The first and last of a chain of three carbons ar
vova2212 [387]

Answer:

Ketone

Explanation:

According to the description of the functional group attached to the hydrocarbon - the first and last of a chain of three carbons are each single bonded to 3 hydrogen (H)atoms; the center carbon is double bonded to an oxygen atom, O - it can be deduced that the functional group is a ketone group.

A ketone is a functional group with the structure R₂-C=O, where the two R are  alkyl or phenyl groups which may be the same or different. The carbon in a double covalent bond with oxygen is called the carbonyl carbon. The two R groups are bonded to the carbonyl carbon in single covalent bonds.

In the hydrocarbon in this question, the two R groups are methyl groups, CH₃ bonded to the carbonyl carbon. The name of the hydrocarbon is propanone and it is a ketone molecule.

4 0
3 years ago
Read 2 more answers
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