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
Lelechka [254]
3 years ago
9

Twenty-seven pounds (27 lb) of chlorine gas is used for treating 750,000 gal of water each day. The chlorine used up by the micr

oorganisms in the water is measured to be 2.6 mg/L. What is the residual (excess) chlorine concentration in the treated water?
Chemistry
1 answer:
Delicious77 [7]3 years ago
3 0

Answer:

The correct answer is 1.778 milligrams per liter.

Explanation:

Based on the given information, the concentration of chlorine gas given is 27 pounds or 27*453.59 = 12327.93 grams.

The quantity of water given is 750000 gallons or 750000 * 3.754 = 2815500 L

The concentration of chlorine used up by the microorganism is 2.6 mg/L or 0.0026 gm/L.

Thus, for 2815500 L of water, the amount of chlorine used is,

= 2815500 * 0.0026

= 7320.3 grams

The left quantity of chlorine is 12327.93 - 7320.3 = 5007.63 grams

The concentration of residual chlorine is,

= 5007.63 g/2815500 = 0.00177859 or 1.778 mg/L.

You might be interested in
Please Help 8-9!!!!!!!
seropon [69]

The labeled diagram is given in the image attached.

As it can be seen from the image that freezing is when energy is removed from the system at 0 ⁰ while melting is when energy is added at 0⁰.

Also when energy is added at 100⁰C, it causes boiling while when it is removed at 100⁰C, it causes condensation.


Melting point of water is 0⁰C while boiling point is 100⁰C

3 0
3 years ago
The si unit for distance is ?
ipn [44]
The SI unit for distance is metres - m.

The SI unit for speed or velocity is metres per second - m/s.

The SI unit for acceleration is metres per second squared. - m/s^2.
6 0
3 years ago
Read 2 more answers
The coordination sphere of a complex consists of ________. The coordination sphere of a complex consists of ________. the ligand
sammy [17]

Answer:

The coordination sphere of a complex consists of <u><em>the central metal ion and the ligands bonded to it.</em></u>

Explanation:

The Coordination Compounds are sets of a central metal ion attached to a group of molecules or ions that surround it. They are also called metal complexes or simply complexes. Then they are compounds that have a central atom surrounded by a group of molecules or ions, the latter called ligands.

The central atom must have empty orbitals capable of accepting pairs of electrons, with the transition metals being the ones with the greatest tendency. Because of this, they can act as Lewis acids (electron pair acceptors). The ligands have unshared electron pairs, then acting as Lewis bases (electron pair donors).

When forming a complex, it is said that the ligands coordinate to the metal and the central metal and the ligands attached to it constitute the coordination sphere of the complex.

Finally, <u><em>the coordination sphere of a complex consists of the central metal ion and the ligands bonded to it.</em></u>

5 0
3 years ago
Which is not a physical property?
ahrayia [7]

Boiling point is the only answer that doesn’t have to do with their physical property

6 0
3 years ago
Read 2 more answers
How did scientists discover that Earth's outer core is liquid?
Sholpan [36]
They discovered this since S waves don’t travel through the earth but P waves do. P waves tend to travel faster than S waves in speed, 1&14km/s vs 1&8km/s
3 0
3 years ago
Other questions:
  • Why can't all mixtures be classified as solutions?
    15·1 answer
  • Show the conversion factor from cm2/stoft2/hris 3.875.
    9·1 answer
  • What is the bonding continuum?
    15·2 answers
  • How many moles are in 213 grams of NaCl?
    7·1 answer
  • When a river flows over a cliff its
    8·2 answers
  • What is the best reason for the scientific community to accept a theory?
    8·1 answer
  • When hydrocarbon fuels burn in a plentiful supply of air they undergo complete combustion, forming carbon dioxide and water vapo
    8·1 answer
  • Setting up a one-step unit conversion A student sets up the following equation to convert a measurement. (The ? stands for a num
    12·1 answer
  • Someone please help me :)))
    11·2 answers
  • PLEASE HELP!!!!! Is it as critcal for your tap water to be a good buffer as it is for the water at the nearest lake to be a good
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!