Chapter 7: Q9P (page 158)

Ammonia reacts with hypobromite, ${OBr}^{-}, {OBr}^{-}$ by the reaction ${2NH}_{3} + 30 {Br}^{-} \to N_{2} + 3 {Br}^{-} + 3 H_{2} O$ . What is the molarity of a hypobromite solution $1.00 mL$ of the ${OBr}^{-}$ solution reacts with $1.69 mg of {NH}_{3}$

Short Answer

Expert verified

The molarity of ${OBr}^{-}$ is $M_{OBr} = 0.15 {MOBr}^{-}$

Step by step solution

Define the molarity.

The total number of moles of solute per litre of solution is known as a solution's molarity. Because, unlike mass, the volume of a system fluctuates with changes in physical conditions, the molality of a solution is affected by changes in physical parameters of the system such as pressure and temperature. Molarity is represented by the letter M, which stands for molar.

The molarity of a solution is defined as one gramme of solute dissolved in one liter of solution.

Calculate the molarity of OBr

$Volume of {OBr}^{-} = 1.00 mL = 0.001 L mass of {NH}_{3} = 1.69 mg = 0.00169 g FM of {NH}_{3} = 117.03 g / mol Now use mole concept and molarity formula to calculate the molarity of {OBr}^{-}, M_{{OBr}^{-} = \frac{0.00169 {gNH}_{3} (\frac{1 {molNH}_{3}}{17.03 {gNH}_{3}}) (\frac{3 {molOBr}^{-}}{2 {molNH}_{3}})}{0.001 L}} = 0.15 \frac{mol OBr}{L} = 0.15 {MOBr}^{-} Thus, the molarity of OBr is M_{OBr} = 0.15 {MOBr}^{-}$

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Chemistry Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Ammonia reacts with hypobromite, ${OBr}^{-}, {OBr}^{-}$ by the reaction ${2NH}_{3} + 30 {Br}^{-} \to N_{2} + 3 {Br}^{-} + 3 H_{2} O$ . What is the molarity of a hypobromite solution $1.00 mL$ of the ${OBr}^{-}$ solution reacts with $1.69 mg of {NH}_{3}$

Short Answer

Step by step solution

Define the molarity.

Calculate the molarity of OBr

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Chemistry Branches

Inorganic Chemistry

Nuclear Chemistry

Ionic and Molecular Compounds

Making Measurements

Study anywhere. Anytime. Across all devices.

Ammonia reacts with hypobromite, OBr-,OBr-by the reaction 2NH3+30Br-→N2+3Br-+3H2O. What is the molarity of a hypobromite solution 1.00mLof the OBr-solution reacts with1.69mgofNH3

Short Answer

Step by step solution

Define the molarity.

Calculate the molarity of OBr

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Chemistry Branches

Inorganic Chemistry

Nuclear Chemistry

Ionic and Molecular Compounds

Making Measurements

Study anywhere. Anytime. Across all devices.

Ammonia reacts with hypobromite, ${OBr}^{-}, {OBr}^{-}$ by the reaction ${2NH}_{3} + 30 {Br}^{-} \to N_{2} + 3 {Br}^{-} + 3 H_{2} O$ . What is the molarity of a hypobromite solution $1.00 mL$ of the ${OBr}^{-}$ solution reacts with $1.69 mg of {NH}_{3}$