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
3241004551 [841]
3 years ago
6

What kind of plant growth hormone to regular plant growth. We dissolve 5.0 mg of the solution into 2.0 kg of water. What is the

dosage of the solution in ppm? _ppm
Chemistry
1 answer:
In-s [12.5K]3 years ago
3 0

Answer:

The dosage of the solution is 2.5 parts per million.

Explanation:

The solvent proportion in parts per million is equal to the ratio of solution in miligrams to ratio of water in miligrams multiplied by a million. (A kilogram is equivalent to a million miligrams) That is:

p.p.m. = \frac{5\,mg}{2000000\,mg}\times 1000000

p.p.m. = 2.5\, ppm

The dosage of the solution is 2.5 parts per million.

You might be interested in
2. What happens to the pH when you add more H+ ions to a solution that has no buffers?
ch4aika [34]
It will go over the amount it needs to.
6 0
3 years ago
Calculate the number of moles of an ideal gas if it occupies 1750 dm3 under 125,000 Pa at a temperature of 127 C.
Phoenix [80]

Hey there!


* Converts 1750 dm³ in liters :


1 dm³ = 1 L so 1750 dm³ = 1750 liters



* Convertes 125,000 Pa in atm :


1 Pa = 9.86*10⁻⁶ atm so 9.86*10⁻⁶ / 125,000 => 1.233 atm


* Convertes 127ºC in K :


127 + 273.15 => 400.15 K


R = 0.082 atm.L/mol.K


Finally, it uses an equation of clapeyron :


p * V = n * R * T


1.233 * 1750 = n * 0.082 * 400.15


2157.75 = n * 32.8123


n = 2157.75 / 32.8123


n = 65.76 moles



hope this helps!



5 0
3 years ago
Read 2 more answers
In the following pair, determine whether the two represent resonance contributors of a single species or depict different substa
Aleksandr-060686 [28]

Answer:

They are resonance contributors

Explanation:

Resonance structures are structures that differ only in the distribution or placement of electrons.

Considering the two structures, we can easily see that the two species have the same total number of bonds and electrons differing only in the distribution of these electrons.

Hence, they are resonance contributors.

5 0
3 years ago
A theory is:
SpyIntel [72]
A theory is a proposed explanation for an observation
3 0
2 years ago
What is the mole ratio between oxygen and carbon dioxide?<br><br> C25H52 + 38 O2 → 25 CO2 + 26 H2O
user100 [1]

Answer:

38 : 25

Explanation:

First thing's first, we have to confirm if the reaction is indeed balanced.

The equation of the reaction is given as;

C25H52 + 38 O2 → 25 CO2 + 26 H2O

From the reaction, 38 moles of O2 produces 25 moles of CO2

The ratio is given as;

38 : 25

4 0
3 years ago
Other questions:
  • Which structure diagram completes the table of physical structures of the main functional groups?
    5·2 answers
  • How to calculate the atomic mass of Cl​
    9·1 answer
  • What is the oxidation state of each element in SO4(2–)?
    14·1 answer
  • Fifth grade chemistry please help me with this. The questions are related to each other and are attached to the problem.
    7·2 answers
  • How does the density of an object help scientist understand the natural world​
    7·1 answer
  • How much energy is required to bring a 30 gram crayon from room temperature, 25 degrees C, to its melting point 49 degrees C?
    10·1 answer
  • A bond formed between Iron and Chlorine would<br> result in what type of bond?
    14·1 answer
  • A student prepares a 100.0 mL solution using 44.7 grams of potassium nitrite. They then take 11.9 mL of this solution and dilute
    12·1 answer
  • The movement of the tectonic plates on the earth is caused by
    13·1 answer
  • 24. A laboratory chemist wants to produce 25.0 g NO2 by the following reactions. If the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!