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density of a crystal is mass/volume

Here mass increases due to filling of impurity thus density increases percentage of site that are unoccupied

no of agcl atom in unit cell=4density=5.561g/cm^3volume of unit

cell=17*10^-23percentage

unoccupied=100-percentage

occupied=100-{(4*143.5/Na)/5.561}/17*10^-23= 0.24%

(2) 14.3

explain it

Please see the solution.

how can calculate 4.001293

Sorry, it is a typing error. It is 0.001293.

what is full form of ml given in question

how can say that 1 mole has 0.001293gm

There is no ml in the question.ml in the solution stands for milli litre. 1ml = 10^-3 l

one thing what is full form of gm in answer

gram

Hey gm means gram and ml means millilitres. Us nt it a funny question

molecular mass=2×vapour densitygiven density=.001293g/cm³1 ml has .001293 gm22.4 ml has .001293×22.4×10³molecupar mass=28.97vapour density= mol. mass/2 = 14.485

If you add anonvolatile soluteto solvent such as water, youdecreasethe tendency for water molecules to evaporate into the gas phase. ... As a result, fewer molecules change from theliquidto the gas phase, thus reducing the vaporpressure

thanku

Urinenaturally has someyellow pigments called urobilin or urochrome. The darkerurineis, the more concentrated it tends to be. Darkurine is most commonly due to dehydration. ... For example, dark brownurinemay indicate liver disease due to the presence of bile in theurine.

due to presence of the pigments bilirubin and biliverdin.

Potassium ferrocyanide is the inorganic compound with formulaK4[Fe(CN)6]

ii) Tetraamminedichlorocobalt (III) ion

thanks

In this reaction, 2 moles of H+ ions (2 equivalents)from sulfuric acid (H2SO4) react with NaOH to form sodium sulfate and water.

in 1 moles the volume of gas is 22.4 L

so. 1) 6.022× 10²³ molecules = 1 moles. so volume will be 22.4 L

2) 0.1 M SO2..Volume occupied by 1 mole of SO2= 22.4 LVolume occupied by 0.1 mole = 2.24 L

The commonname of CH2= CH-Cl is vinyl chloride and theIUPAC nameis Chloroethene.

Decomposition is the process by which organic substances are broken down into simpler organic matter. The process is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere. Bodies of living organisms begin to decompose shortly after death.

“tert-pentyl”: 2-methylbutan-2-yl

“isopentyl”: 3-methylbutyl

“isohexyl”: 2-methylpentyl“neohexyl”: 2,2-dimethylbutyl

2,3-diethyl butane

it's wrong and ans.is3,4-Dimethylhexane and thanku for try

1 is redox 2KNO3 -> 2KNO2 + O2

2 is redox 2AgNO3→∆→2Ag + 2NO2+ O2

3 is redox

2Pb(NO3)2→∆→2PbO + 4NO2+ O2

option D is correct

1.Iron nail will become reddish brown in Copper Sulphate solution. CuSO4+Fe------->FeSO4+CuThis is because the Iron is more reactive than copper and displaces copper from copper sulphate solution forming Iron Sulphate.

2.Copper Sulphate solution will change its colour from blue to green because the colour of copper sulphate solution is blue but after reaction it forms iron sulphate solution which is of green colour.

The correct answer is 30.It's atomic number=2+8+14=24No. of protons= 24+2=26rnSo now no. of neutrons = mass no. - no. of protons=56-26=30

but how can calculate number of protons please tell me immediately

No. of moles of X=2x1.5/6.022=0.498 Since 0.498moles of X=80gHence, 1 mole of X=(80/0.498) g=160.64g

CH4O and C2H6O2 belongs to same homologous series because they have difference of -CH2 group and difference. of 14 g in weight.

Homologous series. In organic chemistry, ahomologous seriesis aseriesof compounds with the same functional group and similar chemical properties in which the members of theseriesdiffer by the number of repeating units they contain.

option(a) is correct

Let molecular formula (CH2o)nIn one mole of carbohydrate there is 2n g of hydrogen present.So, 0.1 mole of carbohydrate there is 2n/1*0.1 g of hydrogen which is equal to 1g (from question)2n * 0.1 = 1n = 5Molecular formula = C5H10O5

i) R-OHii) R-O-R'III) R-COO-R'IV) R-NH2

propanol

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Is this 100% right

Use the method of mass percentage

please post photo clearly

Coagulation, also known as clotting, is the process by which blood changes from a liquid to a gel, forming a blood clot. ... The mechanism of coagulation involves activation, adhesion and aggregation of platelets along with deposition and maturation of fibrin

Want the answer for the 3rd question

Answer for 3rd question??

No..of electron in k= 19no..of electron in k+ = 18electronic configuration of k+ is in imageIn k+ electronic configuration is 1s2 ,2s2 ,2p6, 3s2 3p6

net oxidation state of Mn in MnCl2 is Mn+(Cl2)=0

so,Mn+(-1)2=0 (net charge of Cl=-1

Mn=2

now net charge of Mn in MnO2=

Mn+(-2)2 (net charge on O=-2

Mn=4

MnCl2-----MnO2

equivalent weight =molecular weight (let M)/change in the oxidation state

equivalent weight=M/(4-2)

=M/2

Thus equivalent weight of MnCl2 is half the molecular weight when it is converted to MnO2

Conformation is the set of possible shapes a molecule can have by means of rotation about single bonds only. Configuration is the relative position of the atoms in a molecule that can be changed exclusively by cleaving and forming new chemical bonds.

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.

(i)mean velocity. The timeaverageof thevelocityof a fluid at a fixed point, over a somewhat arbitrary time interval T counted from some fixed time t0. For example, themean velocityof the u component is. The timeaverageof any other quantity can be defined in this manner.

Thecarbonylcarbon in ketones and aldehydes is more electrophilic than incarboxylic acids.This is because the lone pairs on oxygen atom attached to hydrogen atom in the -COOHgroupare involved in resonance thereby making the carbon atom less electrophilic.

Carboxylic acids are acidic due to resonance stabilization of carboxylate anion and in phenols, acidic character is present due to resonance stabilization of phenoxide anion.

Carboxylic acid are more acidic than phenols because the negative charge in carboxylate anion is more spread out as compared to the phenoxide ion as there are two electronegative O-atoms in carboxylate anion in comparison to one in phenoxide ion.

In the resosnce structures of carboxylate anion, the negative charge is present on the O-atoms while in resonance of phenoxide ion negative charge is also present on electropositive carbon atom, which leads to less stability of phenoxide ion than carboxylate anion.

answer is option c because C2 and C3 are sp hybridised

Thank You Rukmini

1-chloro-2,2-dimethyl-butane

1- chloro, (2,2)- dimethylbutane

1-chloro-2,2methyl butane

option C as C2 and C3 is sp hybridised

Thank You Kanak

Because it is easy to carry.A wider strapdistributes the force throughoutagreater surface area. You can doacomparison usingasimple physics equation. So take two differentstrapsand measure the area of them.

By winnowing which is a blow of current that causes the lighter particles like straw pieces to fly off.