ICSE X Chemistry Mole Concept and Stoichiometry
a gas of mass 32g has vol. of 20litres at STP. calculate the gram molecular weight of the gas
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31st January 2018
1:37 PM
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CBSE IX Chemistry Atoms and Molecules
what is the mass of one mole of nitrogen atoms
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22nd April 2018
1:30 PM
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NEET1 NEET1 Chemistry
What is the molar mass of Cl?
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24th April 2018
4:32 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
1. 4g H2 reacts with 20g O2 to form water. How much water is formed? 2.It was found that 380mL of a gas at 27◦C and 800mm of Hg weighed 0.455g. Find the molecular weight of the gas.
Asked by swagatamsaha2002
17th June 2018
11:09 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
It was found that 380mL of a gas at 27◦C and 800mm of Hg weighed 0.455g. Find the molecular weight of the gas
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18th June 2018
5:47 PM
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CBSE XII Science Chemistry Solutions
A solution containing 4 g of a non-volatile organic solute per 100 mL was found to have an osmotic pressure equal to 500 cm of mercury at 27oC27oC.The molecular weight of solute is: A 14.97 B 149.7 C 1697 D 1.497
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15th July 2018
2:21 PM
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CBSE IX Chemistry Atoms and Molecules
what is the difference between molecular mass and gram molecular mass?
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22nd July 2018
11:28 AM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
A sample contain 80% of n2 and 20% mole of O2. find molar mass
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24th July 2018
7:02 AM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
The oxide of an element possess the molecular formula M2O3. If the equivqlent mass of the metal is 9,the molecular mass of the oxide will be??
Asked by minipkda
18th August 2018
8:37 PM
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ICSE IX Chemistry Language of Chemistry
Molecular waeight
Asked by Sunil
11th September 2018
9:33 PM
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ICSE IX Chemistry Language of Chemistry
What is the atomic number of ammonia
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24th October 2018
7:44 AM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
How many molecules of con are present in its molar mass?
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27th January 2019
11:41 AM
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JEE Main Chemistry Solutions
In order to determine the molecular weight of a particular protein,0.01g of the protein was dissolved in water to make 2.93mL of solution. The osmotic pressure was determined to be 0.821 torr 20.00c at . What is the molecular weight of the protein?
Asked by s.ojaswini17
5th February 2019
2:29 AM
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CBSE XI Science Chemistry States of Matter
at 25 degree celsius and 0.993 bar, 135 ml of a gas is collected over water. if the gas weighs 0.16g and the aqueous tension at 25 degree celsius , is 0.0317. calculate the molar mass of the gas.
Asked by Ankit
16th March 2019
1:01 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Pls solve.
Asked by pb_ckt
18th May 2019
11:06 PM
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NEET NEET Chemistry Some Basic Concepts in Chemistry
Equivalent weight is
Asked by Mrinal
20th May 2019
10:07 PM
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JEE Main Chemistry Some Basic Concepts in Chemistry
Plz answer
Asked by sildasholly2002
29th June 2019
7:59 PM
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NEET NEET Chemistry Some Basic Concepts in Chemistry
A and B are ideal gases . The molecular weights of A and B are in the ratio of 1:4.The pressure of a gas mixture containing equal weights of A and B is p atm . What is the partial pressure (in atm ) of B in the mixture. (a)p/5 (b)p/2 (c)p/2.5 (d)3p/4
Asked by Balbir
21st July 2019
1:39 PM
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CBSE XII Science Chemistry
Give me answer
Asked by yash01298
26th July 2019
7:49 PM
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NEET NEET Chemistry Solutions
By dissolving 5g substance in 50g of water, the decrease in freezing point is 1.2 degree celcius. The gram molal depression is 1.85 degree celcius. The molecular weight of substance is (a)105.4 (b)118.2 (c)137.2 (d)154.2
Asked by Balbir
28th July 2019
6:08 PM
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ICSE X Chemistry Mole Concept and Stoichiometry
What is Gram Molecular Mass and how its is calculated?
Asked by aashimegh
3rd August 2019
11:50 AM
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CBSE XII Science Chemistry Solutions
2g of a substance dissolved in 40g of water produced a depression of 274.5K in the freezing point of water. Calculate the molecular mass of the substance .The molal depression constant for water is 274.85K per molal
Asked by mukundsharma70
5th August 2019
10:50 PM
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NEET NEET Chemistry Some Basic Concepts in Chemistry
1 g mixture of CaCO3 and NaCl reacts completely with 100 ml of N/10 HCl. The % of CaCO3 in the mixture is-(1) 40%, (2)60%, (3) 50%, (4) 80%. Also mention which is to be taken as Solute, HCl or CaCO3??
Asked by patra04011965
7th August 2019
8:57 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Calculate the mass of potassium chlorate required to liberate 6.72dmcube of oxygen at step.Molar mass of potassium chlorate is 122.5g mol inverse Ans.24.5g
Asked by aniketbele4084
10th August 2019
12:00 AM
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ICSE X Chemistry Mole Concept and Stoichiometry
What is Gram Molecular Mass
Asked by aashimegh
17th August 2019
2:24 PM
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CBSE IX Chemistry Atoms and Molecules
Number of moles in 2kg electrons ?
Asked by Virenpareek3
23rd November 2019
4:13 PM
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NEET NEET Chemistry Some Basic Concepts in Chemistry
please answer this
Asked by Prashant DIGHE
29th February 2020
9:43 PM
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CBSE IX Chemistry Atoms and Molecules
find molar mass of sodium carbonate
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12th February 2021
3:07 PM
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ICSE X Chemistry Mole Concept and Stoichiometry
b) one ..
Asked by rdk_kulkarni
9th March 2021
8:55 AM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
hiw many atoms of carbon are present in 7.8g of beneze
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21st September 2021
10:26 AM
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CBSE IX Science Is Matter Around Us Pure?
200cc of a gas measures at S. T. P has a mass 0.268. molecular weight of the gas is
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20th June 2022
10:57 AM
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NEET NEET Chemistry Some Basic Concepts in Chemistry
The Weight of the molecule of the compound C(60) H(122)
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21st April 2024
11:30 AM
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