An organic compound on analysis was found to contain 0.032% of Sulphur by mass. The molecular mass of the compound, if its one molecule contains two Sulphur atoms, is :

Question

Aayush Asked Feb 1

48 views

1 Answer

RELATED DOUBTS

Aayush Asked Feb 1

40 views

Caffeine has a molecular weight of 194 . It contains about 30% by mass of nitrogen. The number of atoms of nitrogen in one molecule of it is :

Aayush Asked Feb 1

by Aayush

1 Answer

0 Votes

40 Views

Aayush Asked Jan 31

118 views

1.5 x 10^22 atoms of an element weight about 0.9 g. The atomic mass of the element (in amu) is —

Aayush Asked Jan 31

by Aayush

1 Answer

0 Votes

118 Views

Aayush Asked Feb 1

37 views

The density of water at $4^{\circ} C$ is $1 \times 10^{3} kg m ^{-3}$. Assuming no empty space to be present between water molecules, the volume occupied by one molecule of water is approximately :

Aayush Asked Feb 1

by Aayush

1 Answer

0 Votes

37 Views

Aayush Asked Jan 31

48 views

A sample of oxygen containing 4/Ν_Α mol of oxygen is represented on a Y-map where its volume at NTP, mass of the sample and number of particles are shown. Study the map & choose the correct option.

Aayush Asked Jan 31

by Aayush

1 Answer

0 Votes

48 Views

ANAND_YADAV Asked Jul 30, 2023

111 views

61.25% (w/w) H2SO4 stock solution has a density of $1.6 g mL ^{-1}$. The molecular weight of H2SO4 is $98 g mol ^{-1}$. The volume $( mL )$ of stock solution required to prepare a 200 mL solution of 0.3 M H2SO4 is :

ANAND_YADAV Asked Jul 30, 2023

by ANAND_YADAV

1 Answer

0 Votes

111 Views

Aayush Asked Feb 2

45 views

An organic compound was analysed to give following percentage composition by mass —

Aayush Asked Feb 2

by Aayush

1 Answer

0 Votes

45 Views

Chandan Asked Aug 9, 2023

65 views

Haemoglobin contains 0.25 % iron by weight. The molecular weight of Hemoglobin is 89600 u. Calculate the weight of K4[ Fe (CN)_{6}] that can be produced

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

65 Views

Aayush Asked Feb 2

45 views

If 6.3 g of NaHCO3 are added to 15.0 g of CH3COOH solution, the residue is found to weight 18.0 g. What is the mass of CO2 released in this reaction?

Aayush Asked Feb 2

by Aayush

1 Answer

0 Votes

45 Views

Shakti Asked Dec 20, 2021

55 views

5.6 liters of gas at STP are found to have a mass of $11 \mathrm{~g}$. The molecular mass of the gas is

Shakti Asked Dec 20, 2021

by Shakti

1 Answer

6 Votes

55 Views

ALOK_RAJ Asked Nov 19, 2023

46 views

A certain volume of nitrogen contains 3000 molecules at $30^{\circ} C$. How many molecules will it contain if it is heated to $100^{\circ} C$ and the pressure remains the same?

ALOK_RAJ Asked Nov 19, 2023

by ALOK_RAJ

1 Answer

0 Votes

46 Views

Aayush Asked Feb 2

70 views

0.05 mole of LiAIH4 in ether solution was placed in a flask containing 74g (1 mole) of t-butyl alcohol. The product LiAIHC12H27O3 weighed 12.7 g. If Li atoms are conserved, the percentage yield is —

Aayush Asked Feb 2

by Aayush

1 Answer

0 Votes

70 Views

Chandan Asked Aug 9, 2023

117 views

If V is the volume of one molecule of a gas, the van der Waals constant ' b ' is :

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

117 Views

Shakti Asked Dec 20, 2021

269 views

Sulphur exist in different allotropic forms like S2, S6 and S8 etc. If equal moles of these three forms are taken in separate containers, then the ratio of number of atoms present in them respectively is

Shakti Asked Dec 20, 2021

by Shakti

1 Answer

5 Votes

269 Views

Chandan Asked Aug 9, 2023

198 views

Equal masses of sulphur dioxide and oxygen are mixed in an empty container at $25^{\circ} C$. The fraction of the total pressure exerted by sulphur dioxide is :

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

198 Views

ALOK_RAJ Asked Aug 19, 2023

120 views

What approximate volume of 0.40 M Ba(OH)2 solution must be added to 50.0 mL of 0.30 M NaOH solution to get a solution in which the molarity of the OH− ions is 0.50 M?

ALOK_RAJ Asked Aug 19, 2023

by ALOK_RAJ

1 Answer

0 Votes

120 Views

ANAND_YADAV Asked Aug 8, 2023

158 views

If the number of molecules of SO2 (molecular weight =64 ) effusing through an orifice of unit area of cross-section in unit time at 0∘C and 1 atm pressure is n

ANAND_YADAV Asked Aug 8, 2023

by ANAND_YADAV

1 Answer

0 Votes

158 Views

AnjaliYadav Asked Oct 9, 2022

123 views

The element X and Y form a compound which contains the element in ratio of 1: 3 by mass. If their vapor density are in ratio of 2: 3 find empirical formula of compound.

AnjaliYadav Asked Oct 9, 2022

by AnjaliYadav

1 Answer

1 Vote

123 Views

ALOK_RAJ Asked Nov 19, 2023

162 views

A solution contains 0.18g per mL of a substance X whose molecular weight is

ALOK_RAJ Asked Nov 19, 2023

by ALOK_RAJ

1 Answer

0 Votes

162 Views

test Asked Jun 8, 2022

99 views

The minimum molar mass of a compound containing 3.2 % oxygen by mass is

test Asked Jun 8, 2022

by test

1 Answer

2 Votes

99 Views

ANAND_YADAV Asked Jul 30, 2023

89 views

100 mL of sulphuric acid solution (sp. gr. $=1.84$ ) contains 98% by weight of pure acid. Calculate the volume of 0.46M NaOH solution (in L) required to just neutralize the above acid solution.

ANAND_YADAV Asked Jul 30, 2023

by ANAND_YADAV

1 Answer

0 Votes

89 Views

ALOK_RAJ Asked Aug 18, 2023

93 views

Which of the following molarity values of ions in an aqueous solution containing 5.85 % w/v NaCl , 5.55 % w/v CaCl2 and 6% w/v NaOH is/are correct :

ALOK_RAJ Asked Aug 18, 2023

by ALOK_RAJ

1 Answer

0 Votes

93 Views

Aayush Asked Jan 31

44 views

Which of the following has maximum mass?

Aayush Asked Jan 31

by Aayush

1 Answer

0 Votes

44 Views

ANAND_YADAV Asked Aug 8, 2023

138 views

A mixture of D2 and SO2 at one bar pressure contains 20 % by weight of D2. Partial pressure of SO2 will be :

ANAND_YADAV Asked Aug 8, 2023

by ANAND_YADAV

1 Answer

0 Votes

138 Views

ALOK_RAJ Asked Nov 22, 2023

86 views

The density of water at room temperature is 1.0 g/mL. How many molecules are there in a drop of water if its volume is 0.05 mL ?

ALOK_RAJ Asked Nov 22, 2023

by ALOK_RAJ

1 Answer

0 Votes

86 Views

ALOK_RAJ Asked Aug 18, 2023

69 views

The number of moles of Phosphoric acid H3PO4 that can be produced, by allowing 0.8 moles of H2, 0.9 moles of P4 and 1 mole of O2 to combine according to the given unbalanced reaction, is :

ALOK_RAJ Asked Aug 18, 2023

by ALOK_RAJ

1 Answer

0 Votes

69 Views

Chandan Asked Aug 9, 2023

91 views

2KI + I2 + 22 HNO3 $\rightarrow$ 2HIO3 + 2KIO3 + 22NO2 + 10H2O ; If 3 mole of KI & 2 moles I2 are reacted with excess of HNO3. Volume of NO2 gas evolved at NTP is

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

91 Views

Aayush Asked Feb 1

46 views

Calculate individual and average oxidation number (if required) of the marked element of the following compounds.

Aayush Asked Feb 1

by Aayush

1 Answer

0 Votes

46 Views

ANAND_YADAV Asked Jul 30, 2023

169 views

Arsenic estimation can be done by Bettendorff's process. The reaction is given below:

ANAND_YADAV Asked Jul 30, 2023

by ANAND_YADAV

1 Answer

0 Votes

169 Views

Shakti Asked Dec 20, 2021

151 views

A gaseous mixture is composed of equal number of moles of CH4, C2H5 and C2H2. The average molecular mass of mixture (in amu) is

Shakti Asked Dec 20, 2021

by Shakti

1 Answer

4 Votes

151 Views

ANAND_YADAV Asked Aug 8, 2023

230 views

The ratio of the rate of diffusion of a given element to that of helium is 1.4. The molecular weight of the element is (under same temperature and pressure)

ANAND_YADAV Asked Aug 8, 2023

by ANAND_YADAV

1 Answer

0 Votes

230 Views

Aayush Asked Feb 2

46 views

A, B and C elements have the oxidation number of +6, -2 and -1 respectively. The possible molecular formula when these atoms combine can be —

Aayush Asked Feb 2

by Aayush

1 Answer

0 Votes

46 Views

Aayush Asked Feb 27

45 views

One mole of nitrogen gas at 0.8 atm takes 38 seconds to diffuse through a pinhole, whereas one mole of an unknown compound of xenon with fluorine at 1.6 atm takes 57 seconds to diffuse through the same hole.

Aayush Asked Feb 27

by Aayush

1 Answer

0 Votes

45 Views

Chandan Asked Oct 7, 2023

198 views

On analysis, it was found that the black oxide of copper, red oxide of copper, litharge, the red oxide of lead and the peroxide of lead contain 79.90%, 88.8%, 92.88%, 90.6% and 86.6% respectively of the metal. Establish the law of multiple proportions with the help of data.

Chandan Asked Oct 7, 2023

by Chandan

1 Answer

0 Votes

198 Views

Aayush Asked Jan 30

44 views

A person adds 1.71 gram of sugar in order to sweeten his tea. The number of carbon atoms added are —

Aayush Asked Jan 30

by Aayush

1 Answer

0 Votes

44 Views

Aayush Asked Feb 2

91 views

0.65 g of Zn was put in a solution of 1.5 g CuSO4 and the Cu. thus precipitated weighed 0.635 g. what weight of the zinc sulphate will be recovered on evaporation of the remaining solution?

Aayush Asked Feb 2

by Aayush

1 Answer

0 Votes

91 Views

ASK DOUBTS

An organic compound on analysis was found to contain 0.032% of Sulphur by mass. The molecular mass of the compound, if its one molecule contains two Sulphur atoms, is :

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

RELATED DOUBTS

CATEGORIES

POPULAR TAGS