Explore topic-wise InterviewSolutions in Current Affairs.

No they are not same
evaporation happens at any TEMPERATURE but BOILING TAKES PLACE at FIXED temperature

Number of moles = 1
GRAM atomic wieght = 146.34 ( 146 APPROX)

GIVEN Gram atomic wieght= 315
1. 146
x. 315

( cross multiply)
x= 2.157
x=2 moles (approx)

HEYA MATE,

HERE IS UR ANSWER.

THANKS for asking this question.

ELECTROPHORESIS is a separations TECHNIQUE that is based on the mobility of ions in an electric field.

I HOPE IT HELPS U

Since sodium ACETATE is the salt formed from sodium hydroxide (a strong base) and ACETIC ACID (a weak acid) a SOLUTION of the salt should be alkaline.

When sodium carbonate CRYSTALS are EXPOSED to AIR They LOSE water of crystallization and turn to white powder. This process of loosing water of crystallization when exposed to air is called efflorescence. When sodium carbonate crystals are exposed to air They lose water of crystallization and turn to white powder.

Hope itz help yu

xKCl + yNaCl + (X+y)AgNO3 = xKNO3 + yNaNO3 + (x+y)AGCL

Let x moles of KCl and y moles of NaCl present in the mixture

The moles of AgCl formed = x+y = 2/143.5 moles

Therefore

x + y = 2/143.5 --------------(1)

Given that, 74.5x +58.5y = 1 -----------(2)

SOLVING the two equations for x,y

multiply FIRST equation by 74.5

74.5x + 74.5y = 2 x 74.5/143.5 = 149/143.5 = 1.038

74.5x + 58.5y = 1

(74.5-58.5)y = 1.038 -1

y = 0.038/16 = 0.00237 moles

mass of NaCl = 0.0237 x 58.5 = 0.139 g = 14%

mass of KCl = 1 - 0.139 = 0.861 g = 86%

The composition of original mixture is 14 % NaCl and 86% KCl

Alternatively,

Let x gm of KCl and y gm of NaCl Present

x + y = 1 ---------------------(1)

KCl + AgNO3 = KNO3 + AgCl

74.5 g of KCl gives 143.5 g of AgCl

x g of KCl would give 143.5x/74.5 = 1.926x g of AgCl

NaCl + AgNO3 = NaNO3 + AgCl

58.5 g of NaCl gives 143.5 g of AgCl

y g of NaCl would give 143.5y/58.5 = 2.453y g of Ag Cl

Given that 2 g of AgCl formed.

1.926x + 2.453y = 2 -------------(2)

Solving equn 1 and 2

1.926x + 1.926y = 1.926 (from equn 1)

(2.453-1.926)y = 2 - 1.926

y = 0.074/0.527 = 0.14 g = 14%

x = 1 - 0.14 = 0.86 g = 86%

HEYA!!
---------

✔HYDROGEN GAS is not PRODUCED when a metal reacts with NITRIC Acid ( HNO3). This is because Nitric Acid is a strong Oxidizing Agent. It oxidized the Hydrogen produced and itself gets reduced to any of the oxides of Nitrogen.

-----------------------------------------------------------------------------------------------------

As we know that

1Kg=1061Kg=106mgMass of an electron = 9.1×10−319.1×10−31Kg 
=9.1×10−25mg.9.1×10−25mg.
Next,number of electrons(X) PRESENT in 0.55 mg :
0.55/(9.1×10−25)=0.604×10240.55/(9.1×10−25)=0.604×1024
Further ;
no of MOLES (n) = X/NX/N 
 N is Avogadro's constant .
=n=0.604×1024/(6.023×1023)=1.0034793.=n=0.604×1024/(6.023×1023)=1.0034793.
Hope it's HELP you
Please MARK me in brain list ANSWER

Cellulose CONTAINS 44.44% carbon , 6.17% hydrogen, and 49.39% oxygen. The chemical FORMULA of cellulose is (C6H10O5)n where n is the degree of POLYMERIZATION and represents the number of GLUCOSE GROUPS.

he STATE of being THICK, sticky, and semi-fluid in CONSISTENCY, due to INTERNAL FRICTION.

Nitric acid has the chemical formula HNO3, and CALCIUM HYDROXIDE has the chemical formula Ca(OH)2. When anacid and a base react with each other, the PRODUCTS that are formed is a salt (an ionic compound that is formed from a reaction between an acid and a base) and water.
if it is helpful for you MARK me as the brainliest

Distilled water is pure water . Pure water does not have free electrons necessary for conducting ELECTRICITY . So it does not CONDUCT electricity .

On the other hand , water , any water is called universal solvent . It is a very good solvent . It absorbs any type of impurity readily , in fact looks for it . So in the FORMATION of RAIN clouds when water vapor RISES from surface water , and when the rain water comes down from the clouds , a lot of contaminants are absorbed in the rain water . These contaminants make rain water a good conductor of electricity .

Hello dear your answer is



In chemistry, bases are substances that, in aqueous solution, release HYDROXIDE (OH−) ions, are slippery to the TOUCH, can taste bitterif an alkali,[1] change the color of indicators (e.g., turn red litmus paper blue), react with ACIDS to form salts, promote certain chemical reactions (base catalysis), accept protonsfrom any proton donor, and/or contain COMPLETELY or partially displaceable OH− ions. Examples of bases are the hydroxides of the alkali metals and the alkaline earth metals(NaOH, Ca(OH)2, etc.).


mark as brainliest

i hope help u


:-)



:-)



:-)



:-)



:-)

Iron is much higher than copper on the reactivity SERIES, i.e. it is more reactive.
In this case it replaces copper in the CuSO4 to form FESO4 (FERROUS SULPHATE).
In simpler terms it sort of kicks out the copper which doesn't resist as it's less reactive and takes its place in the sulphate throne.
Ferrous sulphate is green in nature so the copper sulphate (CuSO4) solution turns green.

the solid cannot be separated from the SOLUTION by FILTRATION because it is not possible for the FILTER PAPER to separate the SOLUTE

Dueterium is the ISOTOPE of HYDROGEN..

Magnesium and zinc are often used as sacrificial metals. They are more reactive than iron and LOSE their electrons in PREFERENCE to iron. ALTHOUGH tin is used to coat steel cans, it does not act as a sacrificial metal.
hope it is HELPFUL pls mark as brainliest

Common SALT have MANY impurities in them.Due to this they decreases the melting point of ice. So the kulfi sellers USE the MIXTURE of ice and common salt as a freezing MATERIAL.

Water of crystallisation is the AMOUNT of water in a SALT ZNSO4 is not a salt so it did not contain water of crystallisation

Efflorescence is a crystalline DEPOSIT of salts that can form when WATER is present in or on brick, CONCRETE, STONE, stucco or other building surfaces

The POLYMERS are classified on a large MOLECULE COMBINING many smaal molecule called MONOMER

Hiii frnd.....
here is your answer....

Redox reactions are those reactions in which reduction and OXIDATIVE simultaneously takes place......

OXIDATION ------- LOSS of ELECTRONS in any species is known as oxidation....

Reduction. ------- GAIN of electrons in any species is Known as reduction

Hope my answer helps you....

EXPLANATION GIVEN below

A. CO2....

⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐

Frenkel defect is dislocation a defect in solids in which the ions OCCUPY a site other than its own. It creates an  interstitial defect in the new site

It is ALWAYS found in IONIC solids with low coordination number because if the coordination number is HIGH, the intermolecular forces of attraction will be very high and Frenkel defect cannot TAKE place.

In general, they are SHINY, silvery, GOOD CONDUCTORS of heat and electricity and lose their valence electrons easily. In fact, they lose their TRADEMARK s orbital valence electrons so easily that the s-block elements are considered to be some of the most reactive elements on the periodic table.

Any odd degree polynomial with real COEFFICIENTS has at least ONE real ROOT. In what follows, I ..... Oops - nice ANSWER to the wrong QUESTION. 1 .... So necessary conditions are.

Any odd degree POLYNOMIAL with real coefficients has at least one real ROOT. In what follows, I ..... Oops - nice answer to the wrong QUESTION. 1 .... So necessary conditions are.

Answer:

Explanation:sulphur dioxide is acidic in nature it BECOMES AQUEOUS SOLUTIONS when react with water and turns blue litmus RED

So2 (G)+H2o(l)------H2SO3 (aq)

the brain cells FAIL to receive the required nutrients and oxygen even for a couple of minutes, there can be heavy damage in these SENSITIVE nerve cells of the brain, resulting to cerebral stroke and even death. Brain is the most Sensitive organ in our body. 2) The brain is mainly CONSISTS of cerebrum and brainstem

No of MOLECULES is 3.35×10^21

Mass is a quantity in which matter.


weight is a the unit of measurement for weight is that of force, which in the International SYSTEM of UNITS is the NEWTON.