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Calculate the wavelenth frequency and wavenumber of a light wave whose period is 2.0*10 calculate the wavelength frequency and wavenumber of a light wave wavewhose period is 2.0 multiply 10 raise to power minus 10 s

Posted by Anuj Malik 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

How many Na+ ions unit are present in 20 ml of 0.4 M and H3PO4???

Posted by Ayush Kumar 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Molarity of 1kg solution of 80% H2SO4 (w/w) is (density of solution=1.2 g/ml)

Posted by Ayush Kumar 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

A butric acids contains carbon, hydrogen, oxygen a4.24mg sample of butric acid is burnt it gave 8.45mg of carbon dioxide and 3.46mg of h2o the molecular formula mass is 88 calculate the molecular formula

Posted by Komal Sharma 7 years, 8 months ago

CBSE > Class 11 > Chemistry

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10 gm of urea dissolve 500ml solution .calculate the molarity

Posted by Kriti Sharma 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

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How many moles of gold are present in 49.25 g of gold rod.(atomic mass of gold=197).

Posted by Parnish Sharma 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Armaanjot Singh 7 years, 8 months ago

We know that here, 197g=1mole Then 1g=1/197moles So, 49.25g=4925/197*100=0.25moles

0Thank You

ANSWER

What is the difference between 0.50 mole of NaCl and 0.50 molar of NaCl

Posted by Debabrata Meher 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Armaanjot Singh 7 years, 8 months ago

There is no any difference

0Thank You

ANSWER

dalton atomic theory in briefly

Posted by Jaidev Pundir 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Armaanjot Singh 7 years, 8 months ago

Dalton atomic theory bss Saree laws Ko explain krti hai eg. Law of constant composition

10Thank You

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How we can solve numerical fast easiest way

Posted by Hitesh Jha 7 years, 8 months ago

CBSE > Class 11 > Chemistry

2 answers

Abhigya Mehra 7 years, 8 months ago

Have patience, keep practice from now.

0Thank You

Armaanjot Singh 7 years, 8 months ago

concept smj looo easily ans. Nikl aaenge

7Thank You

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When was the result will come of cbse class 10

Posted by Himanshu Shekhar 7 years, 8 months ago

CBSE > Class 11 > Chemistry

2 answers

Baapu Ji 7 years, 8 months ago

Near about 27 May

1Thank You

Harry Potter 7 years, 8 months ago

either in the last week of may or in the first week of june

2Thank You

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When we boil something then it changes to gaseous form but why an egg yolk converts to solid form

Posted by Ayush Meher 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Armaanjot Singh 7 years, 8 months ago

When an egg is heated or boiled , the proteins in the yolk Nd albumen are denatured. The existing bonds in the protein break Nd new bonds r formed.

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Ddefine diffusion

Posted by Sabari Mukesh Praba 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Armaanjot Singh 7 years, 8 months ago

Movement of substances from high concentration to the low concentration

1Thank You

ANSWER

What is avogadro number ?

Posted by Amanpreet Kaur 7 years, 8 months ago

CBSE > Class 11 > Chemistry

2 answers

Punit Choudhary 7 years, 8 months ago

6.023 * 10^23

1Thank You

Swapnil Pandey 7 years, 8 months ago

6.023×10^23 .it is no. Of particles or anything in one mole of subtance

2Thank You

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Density of two gases are in the ratio 1:2 and their temperature are in the ratio 2:1 then the ratio of their respective pressures is what?

Posted by Ankit Sharma 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Shasank Mishra 7 years, 8 months ago

2:1

0Thank You

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What is the relation between temperature in degree celsius and degree Fahrenheit?

Posted by Ankita Thakur 7 years, 8 months ago

CBSE > Class 11 > Chemistry

2 answers

Biology Lover 7 years, 8 months ago

F = 9/5c+32

1Thank You

Aaradhna Panchal 7 years, 8 months ago

1 °C =33.8 °F

3Thank You

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Electronic configuration of scandium

Posted by Ratandeep Singh 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Armaanjot Singh 7 years, 8 months ago

2,8,9,2

0Thank You

ANSWER

What is hybridyzation

Posted by Anjali Verma 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Aayur Gattani 7 years, 8 months ago

Mating between two interrelated species to produce offspring with desirable characters

0Thank You

ANSWER

Is commerce students are there

Posted by Shubham Singh Meena 7 years, 8 months ago

CBSE > Class 11 > Chemistry

4 answers

Deepika Tiwari 7 years, 8 months ago

I am mathematics student

1Thank You

Pawan Kumar 7 years, 8 months ago

I am also science student

1Thank You

Ishaan Panwar 7 years, 8 months ago

Yes i m commerce student

1Thank You

Nancy Rajput 7 years, 8 months ago

I am science student

2Thank You

ANSWER

How many miles of mg2+ ions are in 3 moles of mgcl2

Posted by Himanshu Raj 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

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No of mole in 65g NA

Posted by Abhinav Vats 7 years, 8 months ago

CBSE > Class 11 > Chemistry

4 answers

Armaanjot Singh 7 years, 8 months ago

It's v easy..... No. Of moles r 2.8260

0Thank You

Kunal Rajour 7 years, 8 months ago

2.82 somthing moles.

2Thank You

Aman Kumar 7 years, 8 months ago

No.of moles = given weight / molecular weight = 65/23

2Thank You

Aman Kumar 7 years, 8 months ago

Easy

2Thank You

ANSWER

Calculate the volume occupied by 10^22 molecules of nitrogen gas

Posted by Shruti Shikhola 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Miti Agrawal 7 years, 8 months ago

(10^22÷6.022*10^23)*22.4

4Thank You

ANSWER

896mL of a mixture of CO and CO2 weigh 1.28g at NTP. Calculate the volume of CO2 in the mixture at NTP

Posted by Payal Singal 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Importance of chemistry

Posted by Mayank Mani 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Suyash Tamrakar 7 years, 8 months ago

Refer NCERT textbook

1Thank You

ANSWER

1.84g of mixture of calcium carbonate and magnesium carbonate upon heating, .96g residue is left.calculate the percentage composition of the mixture

Posted by Aditya Gautam 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What weight of zinc would we require to produce enough amount of hydrogen to reduce completely 8.5g of CuO to copper

Posted by Aditya Gautam 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Theee grams of hydrogen react with 29 grams of oxygen to formals water. Calculate the amount of water produced and find the limiting apen.

Posted by Kanishka Choudhary 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Best youtube channel for chemistry

Posted by Sourav Sharma 7 years, 8 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Calculate the mass of 112cm*3 of hydrogen at stp

Posted by Amaninder Singh 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Gagandeep Singh 7 years, 8 months ago

Use moleculer mass = 22400 cm*3

0Thank You

ANSWER

Atoms contain moles or moles contain atoms

Posted by Rajdeep Singh Yadav 7 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Miti Agrawal 7 years, 8 months ago

1 mole contain 6.022*10^23 atoms

2Thank You

ANSWER

Calculate the mass of one atom of calcium

Posted by Harsh Brar 7 years, 8 months ago

CBSE > Class 11 > Chemistry

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