Chapter 1
Mira slipped past the dining hall before breakfast, the stolen color pressing cold against her ankle inside her boot. She needed somewhere hidden, somewhere she could actually see what this thing was — this feeling that burned like ice and tasted like impossible homesickness. Maybe it was the key. Maybe this was how the legendary pigment worked, emotions pulled straight out of paintings and sorted like ingredients.
The old sauna sat beyond the practice yards, half-buried in snow drifts that hadn't been cleared in months. No one used it anymore — the stove had cracked two winters ago and no one bothered fixing it. Perfect. Mira kicked the door open and slipped inside, her breath fogging in the dim light filtering through frost-covered windows. She pulled the color sample from her boot and held it up. The thing writhed in her palm like liquid glass, throwing shadows that moved against the light.
She needed to contain it properly before it burned through her skin. On a dusty shelf, tucHalogens are added to pools to kill Bacteria. In too low a concentration they won't kill the bacteria efficiently, too high and they will irritate skin and eyes.
For safe swimming the concentration should be between 1 ppm (part per million) and 2 ppm.
If you find the concentration to be 3.2 ppm of chlorine, how much water should you add to 10,000 liters of this pool water to lower it to 2.0 ppm?
To lower the chlorine concentration from
To find the final volume needed for
Cross-multiplying gives:
Thus, the final volume of the pool should be
To find out how much water to add:
Therefore, you need to add approximately 6,000 liters of water to lower the chlorine concentration to
By signing up, you agree to our Terms of Service and Privacy Policy
To lower the chlorine concentration from 3.2 ppm to 2.0 ppm in a pool containing 10,000 liters of water, you need to dilute the solution. The formula to calculate the volume of water needed to achieve the desired concentration is:
[ V_1 imes C_1 = V_2 imes C_2 ]
Where:
- ( V_1 ) is the initial volume of the pool water (10,000 liters)
- ( C_1 ) is the initial concentration of chlorine (3.2 ppm)
- ( V_2 ) is the final volume of water needed to achieve the desired concentration
- ( C_2 ) is the desired concentration of chlorine (2.0 ppm)
Rearrange the formula to solve for ( V_2 ):
[ V_2 = rac{{V_1 imes C_1}}{{C_2}} ]
Substitute the given values:
[ V_2 = rac{{10,000 , ext{liters} imes 3.2 , ext{ppm}}}{{2.0 , ext{ppm}}} ]
[ V_2 = rac{{32,000}}{{2}} ]
[ V_2 = 16,000 , ext{liters} ]
So, you need to add 16,000 liters of water to the pool to lower the chlorine concentration from 3.2 ppm to 2.0 ppm.
By signing up, you agree to our Terms of Service and Privacy Policy
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- An Arrhenius acid has which of the following characteristics?
- What's the frequency of a photon if the energy is #3.09 * 10^-17# #J#?
- Which of these would generate the least energy?
- How do we change the conductivity of silicates?
- What is a displacement reaction?
- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7





![](/cdn-cgi/image/quality=85/apps/public/images/cropped
Play your story to life
Storycraft is a mobile game where you create AI characters, craft items and locations to build their world, then discover what direction your story takes. Download the iOS game for free today!
Download for free