Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

Determine the number of bromide ion in 0.2 mole of Mg Br2.
Asked by Amyra B | 08 Dec, 2013, 02:02: PM
answered-by-expert Expert Answer

Solution:

Mass of 1 mole of magnesium bromide (MgBr2) = 24 + 2 × 80 = 24 + 160 = 184 g

So 184 g MgBr2 = 1 mole

But 1 molecule of MgBr2 contains 2 bromide ions.

Br- ions present= 2 × 6 × 1023 bromide ions.

If 1 mole of MgBr2 contains = 12 × 1023 bromide ions.

0.2 mole of MgBr2 contains = 2.4 × 1023 bromide ions

Answered by Vaibhav Chavan | 09 Dec, 2013, 12:33: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Chemistry
A chemical reaction in which exchange of ions occurs between the reactants, is known as: (A) Endothermic Reaction (B) Exothermic Reaction (C) Double Displacement Reaction (D) Displacement Reaction
Asked by sagarmishra | 04 Mar, 2024, 09:50: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
what is pop formula
Asked by 09.10bjanvhijadhav | 02 Mar, 2024, 08:22: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
BaCl2 +NaSO4 gives NaCl+BaSO4 is a neutalisation reaction?
Asked by prassanna.j | 01 Mar, 2024, 11:59: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
how to solve valency
Asked by yadavparmit83 | 01 Dec, 2023, 06:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
1) A single displacement reaction is represented below. PQ + R ----> PR + Q Which of the following is true about the reactants and products? Refer image for the TABLE (a) A (b) B  (c) C (d) D
question image
Asked by susrisangita792 | 17 Nov, 2023, 08:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
what is chemical formula
Asked by ramjilal01071988 | 14 Oct, 2023, 08:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
write the chemical equation for reaction that takes place when lead nitrate and potassium iodine solutions are mixed
Asked by dikshantnaik1008 | 21 Jul, 2023, 11:47: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
On heating blue coloured powder of Copper (I) Nitrate in a boiling tube, Copper Oxide (black), Oxygen gas and a brown gas X is formed (a) Write a balanced chemical equation of the reaction. (b) Identify the brown gas X evolved. (c) Identify the type of reaction. (d) What could be the pH range of the aqueous solution of the gas X ?
Asked by susrisangita792 | 07 Jun, 2023, 11:54: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
how we get the result of NH3+ HCL =NH4CL
Asked by shoaibhakak41 | 18 Jan, 2023, 02:17: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
an iron metal compound 'Y', after decomposition changes into a solid brown substance and evolve a gas having characteristic odour of burning sulphur. Write the chemical reaction associated with this observation.
Asked by nehashekh291 | 03 Jan, 2023, 03:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×