Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. electric generating plants transport large amounts

Electric generating plants transport large amounts of hot water through metal pipes, and oxygen dissolved in...

70.2K

Verified Solution

Question

Chemistry

Electric generating plants transport large amounts of hot waterthrough metal pipes, and oxygen dissolved in the water can cause amajor corrosion problem. Hydrazine (N2H4)added to the water avoids the problem by reacting with the oxygen:N2H4(aq) + O2(g)→ N2(g) + 2 H2O(l)

About 4 x107 kg of hydrazine is produced every year byreacting ammonia with sodium hypochlorite in the Raschigprocess:

2 NH3(aq) + NaOCl(aq) →N2H4(aq) + NaCl(aq) +H2O(l) ΔrH° = −151 kJ

(a) If ΔfH°  of NaOCl(aq) =−346 kJ/mol, find ΔfH°  ofN2H4(aq) given thatΔfH° [NH3(aq)] = −80.83kJ/mol, ΔfH° [NaOCl(aq)] = −346kJ/mol, ΔfH° [Na+(aq)] =−239.66 kJ/mol, ΔfH°[Cl−(aq)] = −167.46 kJ/mol andΔfH° [H2O(l)] = −285.840kJ/mol.

______ kJ/mol

b) What is the heat released when aqueousN2H4 is added to 6.00 × 103 L ofplant water that is 2.50 × 10−4 mol/L O2?Enter your answer in scientific notation.

____× 10___ kJ

Answer & Explanation Solved by verified expert
4.5 Ratings (903 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

A hummingbird lives in a nest that is 3 meters high in a tree The...

Geometry
Q

A pension fund manager is considering three mutual funds. The first is a stock fund, the...

Finance
Q

Q1 ) i) A project of room temperature measurement system is given to you; in which you...

Physics
Q

I need report about( Lighting pollution) with detail..please use good hand write..

Physics
Q

berdine has developed cataracts in both eyes preventing her from being able to identify een her...

Physics
Q

This single celled protist moves by means of flagella amoebas diatoms yeasts Oeuglenoids paramecium

Biology
Q

A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm...

Physics
Q

We Deliver operates a fiect of delivery trucks in Halifax. Analysis shows that if a...

Accounting
Q

P owns 60% of S. On January 1, 2022, S sold equipment to P for...

Accounting
Q

Compute the total overhead that should be assigned to the medical-testing agent order. What is...

Accounting
Q

Retirement of shares: a. Reduces the number of issued shares and is permissible under law...

Accounting
Q

Jurisdiction B levies a flat 7 percent tax on the first $5 million of annual...

Accounting