Explore topic-wise InterviewSolutions in Current Affairs.

pH value is NOTHING but the NEGATIVE logarithm of H+ ion CONCENTRATION

So there are TWO solutions with pH values 8 and 2

The solution with pH value 8 has the higher H+ ion concentration.

Hii There!!!

____________________________


〽REACTION OF ACETIC ACID WITH METAL CARBONATE :-

Let us consider a metal Na ( SODIUM )

On reaction it will give ,

CH3COOH + Na2CO3 -----------> CH3COONa + H2CO3

Here, H2CO3 will DECOMPOSE rapidly into salt and water.



▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶


〽REACTION OF ACETIC ACID WITH METAL HYDROGEN CARBONATE :-


Let us consider a metal Na ( sodium ) which reacts with acetic acid.
Since, acetic acid is a weak acid and sodium hydrogen carbonate is a base so they will undergo neutralisation reaction

✔Acid + Base -----------> Salt + Water.



CH3COOH + NAHCO3 ------------> Na2CO3 + H2O + CO2



___________________________

# ¢'$ #


Hope it helps✌

The OXIDATION no is 0

Answer:

Atomic RADIUS INCREASES when you GO from top to BOTTOM, because there is increase one SHELL around the nucleus in each step down the group.

Electric wires are LOOSELY arranged between the POLES so that the wires do not break when they CONTRACT in WINTER

The electrode geometric AREA can be LOWER than the electrochemicalsurface area, It depends of the type of materials used to make the working electrode, it's DIFFERENT when the GLASSY carbon electrodeis made from nanotubes or carbonfibers, you MUST think about the working electrodetridimensionality.

2047 ATOMS are PRESENT in OXYGEN ATOM

1. Write the equation for the DISSOCIATION of a GENERIC MONOPROTIC ACID:

HA + H₂O ⇌ H₃O⁺ + A⁻

2. Write the dissociation constant expression.

Ka=[H₃O⁺][A⁻][HA]

3. Determine the equilibrium concentrations.

pH = -log[H₃O⁺] = 10.72

[H₃O⁺] = 10^{-10.72}mol/L = 1.91 × 10^{-11} mol/L

From the equation, [A⁻] = [H₃O⁺] = 1.91 × 10^{-11}mol/L

[HA] = (0.015 - 1.91 × 10⁻11) mol/L = 0.015 mol/L

4. Substitute these values in the expression and that is it!

Ka=[H₃O⁺][A⁻]/[HA]= (1.91 × 10⁻11 1.91 × 10⁻11 )/0.031 = 2.4 × 10⁻⁸

Rate of reaction are the FACTORS which AFFECT chemical reaction I.e. they make reaction fast or SLOW. rate of reaction depends on the factors such as temperature, SIZE of practical, construction of reactants, catalyst, etc.

Hope it helps mark me as brainliest.

In chemistry and atomic physics, an electron shell, or a principal energy LEVEL, may be THOUGHT of as an orbit followed by electronsaround an atom's nucleus. The CLOSEST shell to the nucleus is called the "1 shell" (also called "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on farther and farther from the nucleus. The shells correspond with the principal quantum numbers (n = 1, 2, 3, 4 ...) or are labeled alphabetically with letters used in the X-ray notation (K, L, M, …).

HE + O equal to H2O is the reaction to SHOW WATER CONTAIN hydrogen

When ferric chloride solution is applied on WOUND the colloidal particles surround the solution and FORM a clot. This causes coagulation of the blood, which stops furtherbleeding. Alum has the astringent properties and HELPS in BLOODCLOTTING.

Here's your answer!HOPE it HELP plz mark it brainliest!

This is STRUCTURE of 2_methylpropyl

Sorrysorry! ................................................... . ....................... !

1. CHCl3 (chloroform)
2. CCl4 ( carbon tetrachloride)
3.HCl ( HYDROCHLORIC ACID)
4.PVC ( polyvinyl CHLORIDE)
5. bleaching powder .....


hope this HELPS..!!

1. surface AREA of ADSORBENT , it increase with increase in surface area
2. NATURE of GAS, EASILY liquifiable gas are easily adsorbed .

I THINK 11 × 0.5 = 5.5

Concentrated SULPHURIC Acidis used as a drying and Dehydrating agent because it has a STRONG AFFINITY for water and thus it absorbs water QUICKLY.

This PROCESS is KNOWN as GALVANIZATION.

Helium.

Reason: it has atomic number 2 and so has 2 ELECTRONS in its FIRST and only shell.

It is placed in GROUP 18 as it has closed shell i.e. completely FILLED valence shell configuration.

Thoughzinc and ALUMINIUM are highlyreactive,but their OXIDES are nonreactive. Hence CORROSIVE metals LIKE iron is coated with zinc or aluminium

Clear cloudless day-time sky is bluebecause molecules in the air scatter bluelight from the sun more than they scatter RED LIGHT. When we look towards the sun at sunset, we SEE red and orange COLOURS because the blue light has been scattered out and away from the line of sight.

Beacuse of the FORMATION of carbon MONOXIDE from the BURNING which is poisonous to breath....causes DEATH DUE to suffocation

General ORGANIC Chemistry

General Organic Chemistry: Bond Fission: a) Homolytic fission: Each atom separates with ONE ELECTRON, leading to the formation of HIGHLY REACTIVE entities called radicals, owing their reactivity to their unpaired electron.

2AgNO3--> 2AG + 2NO2 + O2



HOPE IT HELPS U...

Bcz hcl is most ractive acid and as WELL as STRONG so h MOLECULES of hcl are LIBERATE

The MOLECULAR orbital are FORMED by the LCAO of the WAVE function of the PARTICIPATING atomic orbitals.In LCAO method each molecule has set of Molecular orbital(MO).

All the BEST.. .... . ......

Soak a tissue with acetone to make it more flammable. Next, draw sulfuric ACID into a glass pipette. DIP the pipette into POTASSIUM permanganate so that the tip of the pipette is COATED with a few crystals. Dispense the sulfuric acid onto the tissue. The potassium permanganate and sulfuric acid will mix to PRODUCE manganese heptoxide and fire.

Silver phosphate, AG3PO4, is an insoluble salt that has a Ksp = 1.3 x 10-20. a) CALCULATE the molar solubility of Ag3PO4 in pure water. B) Calculate the molar solubility of Ag3PO4 in a solution CONTAINING 0.020 M NA3PO4 (a soluble salt).

We KNOW that
ph=-log(10^-8)
ph=8

As SOON as the freshly cut brinjle come in CONTACT to air (OXYGEN) then it turns brown the change that TAKE place in the EXP is chemical change

Atomic mass of the ELEMENT is 31 (protons+neutrons)
while atomic NUMBER is 16(no. of protons/electrons)

1 MOLE = 6.022 × 10 ^ 23

6.022 × 10 ^ 23 is AVOGADRO NUMBER ....


this is your answer

A form of carbon having molecules of 60 ATOMS ARRANGED in POLYHEDRON resembling a geodesic sphere.

hope it may HELP you...........

Substances are classified as ELEMENT and compounds. Here elements means which cannot be broken into SIMPLER substances. Compounds means which can be broken down into elements by CHEMICAL or electrochemical REACTIONS.
Mixtures are classified as homogeneous and heterogeneous. Here homogeneous means uniform COMPOSITION. Heterogeneous means non uniform composition.

Substance is a fixed composition.
Mixture is not a fixed composition.

The answer below is said by my 6 year old sis

the answer is
because even a doctor needs a hospital or a CLINIC or a small HOUSE or a small ROOM to treat patients and it is only possible to construct by a engineer

I don't know whether this answer will help U or not

Hey MATE here is your answer-
CO2 ( co+o2) is the CHEMICAL EQUATION for the FORMATION of CARBON dioxide.
hope this helps you

Nitric acid(HNO3) is a POWERFUL OXIDISING AGENT. When ZINC is added to dilute nitric acid the nascent OXYGEN[O] formed, reduces the hydrogen molecule to water.

Thus Hydrogen gas is not obtained.

Answer:

EXPLANATION:

TWO third of MEAN kinetic energy PER unit volume

Heyaa☺
_______________________

➡The number of stereoisomers for a MOLECULE with n-chiral centres is 2n.

➡The maximum no.of stereoisomers that a molecule is 2n.

_______________________

Hope you UNDERSTAND...✌
#BeBrainly❤

Where the QUESTION
....

the NUMBER of ATOMS or molecules in ONE mole of a SUBSTANCE, equal to 6.023 × 1023.