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EXPLANATION:

To measure the size of molecular of oleic acid If 'v' is the VOLUME of ONE drop, then the volume of n drops of solution is 'nv'. Based on the assumption that the layer is one molecule thick, we obtain the value of the size of the oleic acid molecule.Hope this would be HELPFUL

EXPLANATION:

Symmetry Elements- Each symmetry operation has a corresponding symmetry ELEMENT, which is the AXIS, plane, line or point .

Whereas

Symmetry Operations-- The symmetry element consists of all the points that stay in the same PLACE when the symmetry operation is performed.

EXPLANATION:

For the second period elements the correct increasing order of FIRST ionisation enthalpy is: (1) Li < Be < B < C < N < O < F < Ne (2) Li < B < Be < C .HOPE this would be helpful to you.

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heyyyyyyy..................

The use of zinc for preventing rusting is MAINLY because of FOLLOWING reasons:

1)It form thin layer which prevents entering of water and oxygen underneath .As a result IRON is SAFE from rusting

. 2)It act as sacrifical metal. Zinc is more reactive than iron , so it OXIDISES in preference to the iron object.Oct 9, 2015

Explanation:

Determination of barium The GIVEN barium chloride SOLUTION is made up to 100ML in a standard FLASK. 20ML of solution is pipetted into a 250 mL

Explanation:

This is

because more of the reacting molecules or IONS are PRESENT to form the REACTION PRODUCTS. .

ANSWER:

BECAISE IT HAS MORE IONS .......

EXPLANATION:

Here is your answer

MASS of ETHANOL =10 G

mass of ethanol =10 g molar mass [C2H5OH]=46

mass of ethanol =10 g molar mass [C2H5OH]=46mass of water = 50 g

mass of ethanol =10 g molar mass [C2H5OH]=46mass of water = 50 gmolar mass of H2o = 18

mass of ethanol =10 g molar mass [C2H5OH]=46mass of water = 50 gmolar mass of H2o = 18moles of C2H5OH= 10 ÷46

mass of ethanol =10 g molar mass [C2H5OH]=46mass of water = 50 gmolar mass of H2o = 18moles of C2H5OH= 10 ÷46 =0.22 mol

mass of ethanol =10 g molar mass [C2H5OH]=46mass of water = 50 gmolar mass of H2o = 18moles of C2H5OH= 10 ÷46 =0.22 molmoles of H2O = 50÷ 18

mass of ethanol =10 g molar mass [C2H5OH]=46mass of water = 50 gmolar mass of H2o = 18moles of C2H5OH= 10 ÷46 =0.22 molmoles of H2O = 50÷ 18 = 2.78 mol.Hope this would be helpful to you.

EXPLANATION:

Here in this REACTION the mixture will be completely neutralized & the PH of the mixture is 7 at 25°C. GIVEN that pH of two SOLUTIONS are 10^-4 and 10^-10. Since equal volumes are mixed so concentration is halved.Hope this would be helpful.

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ANSWER:

It is about 54.54 ..................

EXPLANATION:

Some differences and similarities are

Like simple diffusion FACILITATED diffusion doesn't require metabolic energy and SIMPLY occurs across the concentration gradient.

where as

Osmosis : is movement of water from hypotonic solution to HYPERTONIC solutin through a SEMI permeable membran

Explanation:

The reason behind this is that the. oxidase NUMBERS of carbon are more than ALUMINUM, so carbon leads to carbon but the oxidase number of aluminum is LESS than carbon Therefore, lead oxide is not released immediately.Hope this would be helpful.

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Explanation:

The colloids bodies include the degeneration AGGREGATION of tonofil- .... PODS of adjacent BASAL KERATINOCYTES protruded into the dermis.Hope this would be helpful.

(a) To prepare 100ml of M/40 solution of OXALIC acid. (b) Using this calculate the MOLARITY and strength of the GIVEN KMNO4 solution.

Salt is made up of sodium and CHLORIDE and is ionically bonded. SUGAR, on the other hand, is composed of carbon, oxygen, and hydrogen and has covalent BONDS. ... This type of bond is CALLED an ionic bond...plz mark it a brainlist

EXPLANATION:

The reason behind this is that As per the literature at 760MM of mercury, p-hydroxy benzoic acid has lower boiling point than o-hydroxy benzoic acid .HOPE this WOULD be helpful.

Explanation:

Alkane EITH odd number of CARBON ATOM cannot be prepare by wurtz reaction because Wurtz Reaction undergoes both ionic and free RADICAL mechanism. This is the reaction which is generally used for doubling number of the carbon atoms in alkanes.Hope this would be HELPFUL to you.

EXPLANATION:

Difference between these are

Colloidal solutions are the type of mixture, where the solute is uniformly distributed in the solven.

whereas

Suspension= The SUSPENSION is the mixture, where the solute does not GET dissolved.

Hope this helps you.

ANSWER:

YES it is USED through ACID ....

ANSWER:

Hydrogen has one proton, HELIUM has two. You can't have half of a proton. ... There is a gap between hydrogen and helium not because there may be some undiscovered elements, but because hydrogen is first element it is PLACED in group 1 and helium is placed in group 18 because of its chemical properties (NOBLE gas).

heyyy mate......

The temperature at which a SOLID, GIVEN sufficient heat, BECOMES a liquid.

For ice, the melting point is 0°C or 273K.

hope it HELPS..........

Explanation:

this experiment an insoluble metal oxide is REACTED with a DILUTE acid to form a soluble salt. Copper(II) oxide, a black solid, and colourless dilute SULFURIC acid react to produce copper(II) sulfate, giving a characteristic blue COLOUR to the solution

Answer:

100/90 = 10/9

...................

Explanation:

Here is your answer buddy

Where,

R = Gas constant

T = Temperature (in Kelvin)

M = Molar mass of gas

Now, we NEED to find the temperature at which ROOT MEAN square velocity of SO_2 and O_2 is same.Mark as BRAINLIEST

Answer:

Changes in electrical CONDUCTIVITY during REACTION is due to FREE ELECTRON N ions.

No. of moles = 0.8 / 16 ( METHANE molar mass)

= 8/160 = 1/20 Ans.

ANSWER:

LONG will be INFINITE .........

HOPE it will HELP you...

Answer:

Explanation:

Answer: 66.2\times 10^{19}ions of Al^{3+}

Explanation:  

Moles of Al_2O_3=\frac{\text{ GIVEN mass}}{\text{ molar mass}}

Moles of Al_2O_3=\frac{0.056g}{102g/mol}=5.5\times 10^{-4}moles

Al_2O_3\rightarrow 2Al^{3+}+3O^{2-}

thus 1 mole of Al_2O_3 CONTAINS =2\times 6.023\times 10^{23}=12.046\times 10^{23} ions of Al^{3+}

5.5\times 10^{-4}moles of Al_2O_3 contains =\frac{12.046\times 10^{23}}{1}\times 5.5\times 10^{-4}=66.2\times 10^{19}ions of Al^{3+}

ANSWER:

it will be 3. SOMETHING ......

Answer:

0.011m/cu(s) ..........

Calcium carbonate on reacting with DILUTE SULPHURIC acid RELEASE the colourless and odourless gas accompanied by bricks effervescence, which is CALLED carbondioxide.

Answer:

95/5 + 10

= 95/15

= 6.34

....

.......

EXPLANATION:

this is your ANSWER MARK as a BRAINLIST

■□■□By making the milk more alkaline, it is prevent for more time to turn into CURD. That's why milkman SHIFTS the pH of fresh milk to slightly alkaline by adding a very SMALL amount of BAKING soda to it. Why does this milk take a long time to set as curd?■□■□■□

Explanation:

This is because Although thermodynamically feasible in practice MAGNESIUM metal is not used for the reduction of alumina.Hope this WOULD be helpful.

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Answer:

Explanation:

Apple juice is a popular beverage worldwide, which is perceived as a wholesome and nutritious product. Overall quality of apple juice is an important factor to consider in processing, since some attributes, such as aroma, colour and flavour, are well APPRECIATED by the final CONSUMER, and are associated with freshness and authenticity. Non-thermal processing was tested in apple juice pasteurization in order to verify its feasibility in microbial inactivation, as well as its possibility of rendering a product impaired in terms of some SENSORY attributes. The non-thermal technique of high voltage pulsed electric fields (PEF) treatment, was compared with conventional high temperature-short time (HTST) pasteurization. EFFECTS of process VARIABLES, such as voltage intensity and frequency for the PEF treatment, as well as temperature and time for the HTST pasteurization were investigated over inactivation of Escherichia coli and changes of pH and colour. Both techniques achieved more than five log reductions in microbial inactivation, normally considered the standard for fruit juices pasteurization. Apparently, PEF preserved better the pH than HTST as the thermal treatment showed an increase in this physicochemical property. Some variability was observed in terms of colour for all the treatments.

Hope it helps you....

Answer:

12C=98.892%

13C=13.00335%

Answer:

EXPLANATION:

Mass of solution = Mass of BENZENE + Mass of carbon TETRACHLORIDE = 22 g + 122 g = 144 g Mass percentage of benzne = 15.28%.

Hope it helps you..

ANSWER:

EXPLANATION:

The AVOGADRO's number = 6.022x10^23

1 mole of an element has 6.022x10^23 atoms

Number of MOLES in 1.5x10^22 atoms = (1.5x10^22)/(6.022x10^23)

                                                           = 2.5 x 10^-2

                                                           = 0.025 moles

Atomic mass = Given mass/Number of moles

                    = 0.9/0.025

                    = 36

Choice (a) 

ANSWER:

EXPLANATION:

HOPE it HELPS you...

Explanation:

HEY mate

The ans is AMIDE bond

Follow me..... XD

EXPLANATION:

IUPAC NAMES of hydrocarbons:

1) ethene

2) propene

3) 1-- butene

4)1-- PENTENE

EXPLANATION:

By CALCULATING their NUMBER in ATOM.

EXPLANATION:

protons and neutrons REMAIN in NUCLEUS at the centre of atom

ANSWER:

........pital..

THANXX

2 electrons in shell 1 and then 8 then 18 then 32 then till infinity so maximum is not u yet DISCOVERED

Answer:

this equation is wrong

Explanation:

As COPPER lies below the hydrogen in REACTIVITY series i.e.

K

Na

Ca

Mg

Zn

Al

.

.

.

H

Cu

Ag

Au

therefore copper cannot replace hydrogen.

This REACTION can be successful when concentrated acid is used.

1) 0.25

I HOPE you UNDERSTAND

ANSWER:

ideal gas equation will be used to find answer

P1 V1 T1 GIVEN P2 T2 is also given

find V2

see the ATTACHMENT