1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anvisha [2.4K]
3 years ago
12

23. What is the molarity of NO3- in each solution?

Chemistry
1 answer:
Sauron [17]3 years ago
6 0

Answer:

Explanation:

A) 0.150

B) 0.300

C) 0.450

hope it helps:)

You might be interested in
Which type of measurement is used more often by scientists?
Alchen [17]
Mass is often the most common and weight is its close to that but I'd go with mass
5 0
3 years ago
Use the following half-reactions to construct a voltaic cell:
velikii [3]

<u>Answer:</u> The correct answer is 3Ag^+(aq.)+Cr(s)\rightarrow 3Ag(s)+Cr^{3+}(aq.);E^o_{cell}=+1.53V

<u>Explanation:</u>

We are given:

Cr^{3+}(aq.)+3e^-\rightarrow Cr(s);E^o=-0.73V\\\\Ag^+(aq.)+e^-\rightarrow Ag(s);E^o=+0.80V

The substance having highest positive E^o potential will always get reduced and will undergo reduction reaction. Here, silver will always undergo reduction reaction will get reduced.

Chromium will undergo oxidation reaction and will get oxidized.

The half reactions for the above cell is:

Oxidation half reaction: Cr(s)\rightarrow Cr^{3+}+3e^-;E^o_{Cr^{3+}/Cr}=-0.73V

Reduction half reaction: Ag^{+}+e^-\rightarrow Ag(s);E^o_{Ag^{+}/Ag}=0.80V       ( × 3)

Net equation:  3Ag^+(aq.)+Cr(s)\rightarrow 3Ag(s)+Cr^{3+}(aq.)

Oxidation reaction occurs at anode and reduction reaction occurs at cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

Putting values in above equation, we get:

E^o_{cell}=0.80-(-0.73)=1.53V

Hence, the correct answer is 3Ag^+(aq.)+Cr(s)\rightarrow 3Ag(s)+Cr^{3+}(aq.);E^o_{cell}=+1.53V

4 0
3 years ago
___Fe + ___O2 →___Fe2O3 Your old bike left out in the rain starts to rust. What coefficients fill in the blanks to balance the e
Diano4ka-milaya [45]
D) 4Fe + 3O2 -> 2Fe3O3
4 0
3 years ago
Read 2 more answers
Which best describes the effect of J. J. Thomson’s discovery?
Orlov [11]
Is this a multi-choice question? You haven't given any options for me to answer from. Please post and I will answer for you.
4 0
3 years ago
Science is both a body of knowledge and a process for discovery<br> True or false
kupik [55]
True


the answer is true, but brainly requires a long answer, so here is me rambling. hope you have a great day/night, be sure to eat and drink some water :)
8 0
3 years ago
Read 2 more answers
Other questions:
  • With solutions of strong acids and strong bases, the word strong refer to ____. (1 point) normality molarity solubility degree o
    10·2 answers
  • A 111.6 gram sample of iron (MW=55.8) was heated from 0 degrees C to 20 degrees C. It absorbed 1004 Joules of energy. What is th
    9·1 answer
  • A sample of gas occupies a volume of 4.5 L at 20 Celsius. What volume will it occupy at -15 celsius, if the pressure remains con
    6·1 answer
  • 3. Which of the following is NOT an abiotic factor in an ecosystem?
    14·2 answers
  • in 1912, chemist fritz haber developed a process that combined nitrogen from the air with hydrogen at high temperatures and pres
    5·1 answer
  • Which type of molecule is used by organisms to store and transmit genetic information?
    14·2 answers
  • How many sodium ions are in 3.0 moles of nacl
    14·2 answers
  • What information can you figure out about an atom using only the atomic number?​
    7·2 answers
  • 2. How many moles are in 2.8 Liters of CO2 gas?
    13·1 answer
  • What does the shape of the moon we see depend on? (2 points)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!