Home
NCERT Soltions
Class 11
Chemistry
Some Basic Concepts of Chemistry
What is the concentration of sugar (C12H22O11) in mol L–1 if its...

What is the concentration of sugar (C12H | Class 11 Chemistry Chapter Some Basic Concepts of Chemistry, Some Basic Concepts of Chemistry NCERT Solutions

Question:

What is the concentration of sugar (C₁₂H₂₂O₁₁) in mol L^–1 if its 20 g are dissolved in enough water to make a final volume up to 2 L?

Answer:

Mass of sugar= 20g

Molecular mass of sugar=12x12 +1x22 +16x11=342 g

Mass of water= 2 liter

Molarity (M) = number of moles of solute/volume of solution in liters

= 20/(342x2) =0.02924 mol/liter

Therefore Molar concentration of sugar = 0.03 mol L^–1

1
0
0
Report?

Report a problem on Specifications:

Email id:

Comments

Next Question >

Popular questions of class 11 Chemistry

The mass of an electron is 9.1 × 10^–31 kg. If its K.E. is 3.0 × 10^–25 J, calculate its wavelength.

Calculate the amount of carbon dioxide that could be produced when

(i) 1 mole of carbon is burnt in air.

(ii) 1 mole of carbon is burnt in 16 g of dioxygen.

(iii) 2 moles of carbon are burnt in 16 g of dioxygen.

Calculate the wavelength of an electron moving with a velocity of 2.05 × 10⁷ ms^–1.

Balance the following redox reactions by ion – electron method :

(a) MnO₄^–(aq) + I^–(aq) → MnO_{2 (s)} + I_2(s) (in basic medium)

(b) MnO₄ ^– (aq) + SO_{2 (g)}→ Mn²⁺ (aq) + HSO₄^– (aq) (in acidic solution)

(d) Cr₂O₇ ^2– + SO_2(g) → Cr³⁺ _(aq) + SO₄^2–(aq) (in acidic solution)

In a process, 701 J of heat is absorbed by a system and 394 J ofwork is done by the system. What is the change in internal energy for the process?

What will be the minimum pressure required to compress 500 dm³ of air at 1 bar to 200 dm³ at 30°C?

In a reaction A + B2 → AB2 Identify the limiting reagent, if any, in the following reaction mixtures.

(i) 300 atoms of A + 200 molecules of B

(ii) 2 mol A + 3 mol B

(iii) 100 atoms of A + 100 molecules of B

(iv) 5 mol A + 2.5 mol B

(v) 2.5 mol A + 5 mol B

At 0°C, the density of a certain oxide of a gas at 2 bar is same as that of dinitrogen at 5 bar. What is the molecular mass of the oxide?

Which one of the following will have largest number of atoms?

(i) 1 g Au (s)

(ii) 1 g Na (s)

(iii) 1 g Li (s)

(iv) 1 g of Cl2(g)

Density of a gas is found to be 5.46 g/dm³ at 27 °C at 2 bar pressure. What will be its density at STP?

Recently Viewed Questions of Class 11 Chemistry

Explain why is there a phenomenal decrease in ionisation enthalpy from carbon to silicon?

Find out the value of K_c for each of the following equilibria from the value of K_p:

(i) 2NOCl (g) ↔ 2NO (g) + Cl₂ (g); Kp = 1.8 × 10^–2 at 500 K

(ii) CaCO₃ (s) ↔ CaO(s) + CO₂(g); Kp = 167 at 1073 K

The size of isoelectronic species — F^–, Ne and Na⁺ is affected by

(a) Nuclear charge (Z )

(b) Valence principal quantum number (n)

(d) None of the factors because their size is the same.

Discuss the pattern of variation in the oxidation states of
(i) B to Tl and (ii) C to Pb.

Write IUPAC names of the following compounds :

What is meant by the term bond order? Calculate the bond order of: N₂, O₂,O₂⁺,and O₂^-.

Predict which of the following reaction will have appreciable concentration of reactants and products:

a) Cl₂ (g) ↔ 2Cl (g) Kc = 5 ×10^–39

b) Cl₂(g) + 2NO (g) ↔ 2NOCl (g) Kc = 3.7 × 10⁸

c) Cl₂ (g) + 2NO₂ (g) ↔ 2NO₂Cl (g) Kc = 1.8

Calculate the wave number for the longest wavelength transition in the Balmer series of atomic hydrogen.

Pressure is determined as force per unit area of the surface. The SI unit of pressure, Pascal is as shown below:

1Pa = 1N m^–2

If mass of air at sea level is 1034 g cm^–2, calculate the pressure in Pascal.

How many neutrons and protons are there in the following nuclei?

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

Read the question carefully and focus on the core concept being asked.
Reference examples and data from the chapter when answering questions about Some Basic Concepts of Chemistry.
Review previous year question papers to get an idea of how such questions may be framed in exams.
Practice answering questions within the time limit to improve your speed and accuracy.
Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Comments

Gaurav Singh
2019-08-12 13:39:01

Perfect

Shubham Maherey
2019-04-21 15:12:47

Nice ans

marcia mazuze
2019-03-21 09:00:16

Good answer

Nishant Ranjan
2018-09-08 21:58:19

v.v. good answer

RAVI
2018-08-03 05:37:12

Ans is 0.03 why you write 0.02924 in answer

Manoj
2018-07-27 11:56:47

Good

Rohit surana
2018-07-06 22:12:12

Why no of moles of solute is the mass here

Singh is king
2018-06-28 17:46:28

The great

Rajnikanth Bodas
2018-02-23 21:11:55

Good answer

Comment(s) on this Question

Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 11: What is the concentration of sugar (C12H22O11) in mol L–1 if its 20 g are dissolved in enough ....

What is the concentration of sugar (C12H | Class 11 Chemistry Chapter Some Basic Concepts of Chemistry, Some Basic Concepts of Chemistry NCERT Solutions

< Previous Question

Next Question >

Popular questions of class 11 Chemistry

Recently Viewed Questions of Class 11 Chemistry

Study Tips for Answering NCERT Questions:

Comments

Comment(s) on this Question

Chapters for Class 11 Chemistry

Subjects for Class 11

Students Also Read

Important links

Quick Links

Resources

Support