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
zhannawk [14.2K]
3 years ago
15

Tính thể tích ở điều kiện tiêu chuẩn của một hỗn hợp khí gồm 4,4g CO2 và 3,2g O2. Tính số mol trong 3.10^23 phân tử nước

Chemistry
1 answer:
netineya [11]3 years ago
7 0

https://openstax.org/books/chemistry-2e/pages/3-2-determining-empirical-and-molecular-formulas

Check this

You might be interested in
Explain why elements and compounds are pure substances
Anna11 [10]
<span>N2 - Element; Pure substance O2 - Element; Pure substance N2O - Compound; Pure Substance Air - Homogeneous; Solution</span>
8 0
3 years ago
Read 2 more answers
An illegal drug stimulates the parasympathetic nervous system, causing the user to appear tranquilized. What could indicate to a
Musya8 [376]
B. Low blood pressure and drooling. If the user is tranquilized, he would not be able to hinder the production of saliva, leading to drooling. And if the victim was tranquilized, his heart would slow down, not speed up, resulting in a lower blood pressure.
6 0
3 years ago
80.0 mL of 0.30 M NaOH and 80.0 mL of 0.30 M HCl are mixed together. What is the approximate pH
Licemer1 [7]

Answer:

  • <u><em>Neutral</em></u>

Explanation:

The number of moles of solute is equal to product of the molar concentration (molarity) and the volume (in liters) of solution.

Since the volumes and the molar concentrations of the<em> NaOH </em>and <em>HCl </em>solutions mixed are equal, each one of them contributes the same number of moles of solute.

Since every mol of NaOH produces one mol of OH⁻ ions and every mol of HCl produces one mol of H⁺ ion, the number of moles of OH ⁻ and H⁺ in solution are equal.

Thus, OH⁻ and H⁺ ions will be neutralized by the reaction:

  • OH⁻ (aq) + H⁺ (aq) ⇄ H₂O (l)

Which is strongly shifted to the right and has <em>neutral pH</em>.

Hence, you conclude that the approximate <em>pH of the solution is neutral.</em>

6 0
4 years ago
Microwaves are used to heat food in microwave ovens. The microwave radiation is absorbed by moisture in the food. This absorptio
DanielleElmas [232]

efw lol ewd sa dada

5 0
3 years ago
Your sick puppy is diagnosed with roundworms. They grow inside of the puppy. What type of symbiotic relationship do the puppy an
Ratling [72]
D. Parasitism , the roundworm benefits from the relationship, but the puppy is harmed
4 0
3 years ago
Other questions:
  • The predominant intermolecular force in (ch3)2nh is ________. the predominant intermolecular force in (ch3)2nh is ________. lond
    13·1 answer
  • An example of selective breeding and why or how this is used in or by living things
    11·1 answer
  • A 2.52 g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O2 to yield 3.
    11·1 answer
  • Is it reasonable to expect that the atom model will change again in time?
    5·1 answer
  • What is one example of a molecule that is not a compound?
    7·2 answers
  • Which section of the ocean floor makes up half of the surface of Earth?
    7·2 answers
  • How many moles of hydrogen will be produced in this reaction when 34.5 moles of hydrogen iodide are decomposed?
    11·1 answer
  • The atomic size of zirconium is smaller than
    12·1 answer
  • What is the chemical symbol for aluminum oxide​
    12·1 answer
  • All isotopes of a given element must have the same
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!