Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Testing a asking question.

Testing a asking question.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter23: Carbon: Not Just Another Element
Section: Chapter Questions
Problem 66PS
See similar textbooks
icon
Related questions
Question

Testing a asking question.

1) mass of benzil = moles x molar mass of benzil = 0.35 mmol x 210.232 g/mol = 73.5812 x 10^-3 g = 73.58 mg mass of benzoin=0.35 mmol x 212.24 g/mol = 74.284 x 10^-3 g = 74.284 mg 2) a) one mole of sodium borohydride (NABH4) can reduce four moles of aldehyde or ketone therefore one mole of sodium borohydride (NaBH4) can reduce 2 moles of benzil because benzil has 2 ketone group and for 0.35 mmol of benzil , moles of NABH4 required = 0.35 mmol / 2 = 0.175 mmol thus mass of NaBH4 = 0.175 mmol x 37.83 g/mol = 6.62 mg b) as we know that for 0.35 mmol of benzil , only 6.62 mg of NaBH4 is required therefore 15 mg is very large and Only 0.35 mmol of benzil , leads to the result that benzil is the limiting reagent. 3) the balanced reaction or the reaction of the NaBH4 with H2O is given as NABH4 + 3 H20 NaH2BO3 + 4 H2
Transcribed Image Text:1) mass of benzil = moles x molar mass of benzil = 0.35 mmol x 210.232 g/mol = 73.5812 x 10^-3 g = 73.58 mg mass of benzoin=0.35 mmol x 212.24 g/mol = 74.284 x 10^-3 g = 74.284 mg 2) a) one mole of sodium borohydride (NABH4) can reduce four moles of aldehyde or ketone therefore one mole of sodium borohydride (NaBH4) can reduce 2 moles of benzil because benzil has 2 ketone group and for 0.35 mmol of benzil , moles of NABH4 required = 0.35 mmol / 2 = 0.175 mmol thus mass of NaBH4 = 0.175 mmol x 37.83 g/mol = 6.62 mg b) as we know that for 0.35 mmol of benzil , only 6.62 mg of NaBH4 is required therefore 15 mg is very large and Only 0.35 mmol of benzil , leads to the result that benzil is the limiting reagent. 3) the balanced reaction or the reaction of the NaBH4 with H2O is given as NABH4 + 3 H20 NaH2BO3 + 4 H2
A ABC is triangle with D and E the midpoints of AB and AC respectively. E Prove that BC=2DE. В C
Transcribed Image Text:A ABC is triangle with D and E the midpoints of AB and AC respectively. E Prove that BC=2DE. В C
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Micelles and Biological Membranes
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
Chemistry
ISBN:
9781337399425
Author:
Steven S. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS