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Bonjour!

We have to find the VOLUME of acid REQUIRED to make one liter of 0.1M H2SO4;

Given---›

Percentage of H2SO4 = 98% (w/w)

Density (d) = 1.80 gmL-¹

0.1M of H2SO4

First we will find the normality of the solution:

Formula to find Normality from %(w/w), density and equivalent weight of compound.



First we will find out equivalent weight of H2SO4 = Weight of compound/Cationic charge on compound

= 98/2

= 49

Therefore normality will be;




Therefore,

Normality = 36N


Acid required;

N1V1 = N2V2

=> 36V1 = 0.1 × 2 × 1000. (1L = 1000mL)

=> V1 = 200/36

=> V1 = 5.55 mL

Therefore, the volume of acid required to make one liter of 0.1M H2SO4 is 5.55 mL.

Hope this helps...:)

Because LIKE dissolve like...POLAR are soluble in polar SOLVENTS. as WATER is polar so that's why it is soluble in water

In PURE SUBTANCE the solute mix with the SOLVENT completely.

Answer:

EXPLANATION:

Physical and chemical PROPERTIES of the ELEMENTS are a PERIODIC function of their atomic masses.

This is the ANSWER PLEASE EXCUSE my HAND WRITTING

1- .A particle OCCUPIES a well-defined position in space i.e a particle is localized in space e.g. a grain of sand, a cricket ball etc. where as
a wave is spread out in space e.g. on throwing a stone in a pond of water, the waves start moving out in the form of concentric circles. Similarly, the sound of the SPEAKER reaches EVERYBODY in the audience. Thus a wave is delocalized in space.

2- the third isotope, tritium, is an unstable species produced in nuclear reactions.

3-Ionisation ENERGYIS the minimum energy needed to remove amoleof electrons from a mole of gaseous atoms.O has a lower 1st IE than N because O is 1s2 2S2 2p4 and N is 1s2 2s2 2p3. The 4th electron in the O atom's outer level has to pair up with one of the others, and this introduces repulsions, which makes it easier to remove.The relevant factors are nuclear charge, atomic radius and screening byinner electrons.




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Yo friend's your answer is as FOLLOWS it's mgso4.

hope it helps you a lot.
thank you very much.
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Mostly, electrolytes are COMPONENTS, whereas HG is an ELEMENT

Explanation:

Collision theory, theory used to PREDICT the rates of chemical reactions, particularly for gases. The collision theory is BASED on the assumption that for a reaction to OCCUR it is necessary for the reacting species (atoms or molecules) to COME together or collide with one ANOTHER.

Because the two reactants are COMBINING to form ONE PRODUCT

As we GO across a period, the ionic CHARGES INCREASE. DUE to this the lattice enthalpy or charges also increase. Hence lattice energy of Al > Mg > Na.

Also as we go down a group ionic size only increases but charge remains same. Hence as we go down a group, lattice energy DECREASES.

=> Li > Na > K

No we can first arrange the cations in the question.

Given Cations are : Na, Mg, Ca, Al

We know that, Al > Mg > Na

Also Mg > Ca

=> Correct order of decreasing lattice enthalpies are :

Al > Mg > Ca > Na

=> Option ( b ) has the same criteria.

Hence Option ( B ) is correct option.

Al₂O₃ > MgBr₂ > CaO > NaCl.

Colloidal SYSTEM CONSISTS of two PHASES : dispersed phase and DISPERSION MEDIUM.

The STREET SIGNS for INFORMATION

So what can I do. PLEASE ASK QUESTIONS

Alkali and alkaline earth metals are a group of metals in the MODERN periodic table which forms part of the S-block elements. Beryllium, MAGNESIUM, CALCIUM, strontium, barium, and radium are alkali earth metals. These metals are so called because the oxides and hydroxides formed by these metals are alkaline in NATURE and are the mostly found in the earth’s crust. Lithium, sodium, POTASSIUM, rubidium, and francium are alkali metals. These metals are called alkali metals due to the formation of hydroxides which are highly alkaline in nature when they react with water.

❤☺☺❤HEY MATE YOUR ANSWER IS HERE. ...❤☺❤☺
⭐⭐⭐
Tungsten.....HAVE SYMBOL IS W ...
⭐⭐⭐⭐
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HEY DEAR , HERE IS YOUR ANSWER.✌✌❤❤

( A ) H2 + N2 -------------> NH3 

chemical equation balanced

3H2 + N2 -----------> 2NH3

___________________________________

( B ) The chemical equation is:

2H2S+2O2-->2SO2+2H2O

___________________________________

( C ) 3BaCl2 + Al2(SO4)3 =  2AlCl3 + 3BaSO4

___________________________________

( D ) Potassium metal REACTS with water to give potassium HYDROXIDE and HYDROGEN gas.

Chemical equation:

2K(s)+2H2O(l) --------->2 KOH (aq)and H2(G)

___________________________________

HOPE IT HELPS YOU.✌✌
#BE BRAINLY.❤❤

There are MANY different stainingtechniques. In a simple stainingtechnique, a positively CHARGED staincolors the negatively charged cells, making them STAND out against the light background. Methylene blue is a simple STAIN that COLORS cells blue.

897 i THINK is the ANSWER

(2) REDUCTION of ester with Na in Ethyl alcohol.

A PART of Bouvealt Blanc reduction is given in the attachment below.

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That's DEPENDENT on you if you WANT to SURVIVE then you have to CONSUME WATER

No. All METALS do not react in same MANNER. Mg burns with a white dazzing light as it forms Mg OXIDE by reacting with the oxygen present in air.. All metals do not FORM such shiny or dazzling oxide.

The examples are
we FOUND DIFFUSION in water PLANT and simple plant also they take water from SOIL

HI FRIEND....

That makes the ice float in water. its because the chemical bonds between the H2O molecules are forced into being longer, expanding the water and forming a crystal (ice). When something at constant mass increases in volume, itsdensity decreases. THUS, ice is lessdense than water, CAUSING it to float.

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The NUMBER is 9 TIMES

Both is RIGHT we can right in both WAY

Yo yo HONEY singh how does ELECTRON MERGE in a long term

There are several differences between a physical and chemical CHANGE in matter or SUBSTANCES. A physical change in a SUBSTANCE doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either GIVEN off or absorbed.


Hope it HELP you.

W-n =no of NEUTRON


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

The frequency of ELECTRON is given by, 

                     V = v2πr v = v2πr  
where, vis the VELOCITY with which the ELECTRONS are moving and, 
r is the radiusof the hydrogen atom.

Velocity, v = 2.2 ×× 106 m/s 
radius of the orbit, r = 0.5287 ×× 10-10 m 

∴ ∴  f = 2.2×1062×3.14×0.5287×10−102.2×1062×3.14×0.5287×10-10 = 6.6 ×× 1015 HZ

HENCE EMPIRICAL FORMULA will be FE2O3

No,BOND formation does not OCCUR in CASE of negative OVERLAPPING.

Coal is formed by a certain process.Millions years ago trees were covered under soil due to several topographical factors or earthquake.Then by the pressure of surface of EARTH and TEMPERATURE under surface and also due to bacterial INTERACTION and by some chemical reactions,they turned in coal.
same thing occurred when in case of dead animal bodies then PETROLEUM was formed.
Both formation process include complex chemical reactions and also bacterial interactions which is impossible to be provided in labratory.The temperature and pressure required for those reactions can't be created in laboratories.So they can't be prepared in laboratories.

Weather should be cool and LESS humid.
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the elements are
1. calcium and oxygen
2calcium, oxygen and HYDROGEN
3.calcium, carbon and oxygen
4.sodium, hydrogen, carbon and oxygen
5.same as 4TH one
6.sodium, carbon and oxygen
7.calcium, oxygen, chlorine
8.hydrogen, nitrogen, oxygen
9.calcium and chlorine
10. carbon and hydrogen

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☺ Hello mate__ ❤

◾◾here is your answer...

⭐Quick LIME (CaO)-- calcium, oxygen

⭐Hydrogen BROMIDE (HBR)-- Hydrogen , bromide

⭐Baking POWDER (NaHCO3)-- sodium , hydrogen , CARBON , oxygen

⭐Potassium sulphate.(K2SO4)-- potassium , sulphur , oxygen

I hope, this will help you.

Thank you______❤

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1) TEST
2) smell
3) TEXTURE
4) REACTIVITY

the propeties of ACID.

Brainly.in

What is your QUESTION?
subhranshi
Secondary SchoolChemistry 5+3 pts


Write all sets of quantum no. For 19th electron of chromium (atomic no. - 24)
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Report by Apurvadas8854 16.03.2018
Answers

TheTotalDreamer
TheTotalDreamer Ace
Hey,

The atomic number of CR is 24. It's electronic configuration can be written as:

1s2 2s22p6 3s23p6 4s1 3d5 (According to Aufbau's principle 4s will be filled first and then 3d will be filled)

The 19th electron of Cr will RESIDE in 4s orbital. The quantum NUMBERS can be given as:

n=4

l=0 (s)

m=0

s=+1/2

16/120×100=13.33% is the RIGHT ANSWER

HEY THERE ..!!

HERE IS YOURS ANSWER;

◆ Looking at the first diagram in the SOURCE below, there are four P=O DOUBLE bonds and twelve P-O single bonds. 

◆ So DEPENDING on how literally you take the HYPHEN between "P" and "O" in the question, the answer MIGHT be 12 or 16 bonds.


HOPE IT HELPS

Hi MATE ..............

here's ur ANSWER.........!

All the chemical reactions in plants take inside the chloroplast and in chloroplast it takes place in the grana.

But in the dark reactions case , the stroma part of the chloroplast is used for the chemical REACTION to take place.

Chloroplasts contain DNA and RIBOSOMES . These are required to synthesize proteins .Chemical reactions in every case here REQUIRE the enzymes.

hope it helps ⭐