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
Airida [17]
3 years ago
14

How many grams of potassium nitrate (KNO3) are required to prepare 0.250L of a 0.700 M

Chemistry
1 answer:
CaHeK987 [17]3 years ago
6 0

Answer:

17.78g

Explanation:

m/M = C×V

m/101.102= 0.7× 0.25

m= 101.102×0.7×0.25= 17.78g

You might be interested in
How do you describe the milk?
Lady bird [3.3K]

Answer:

emulsion

Explanation:

An emulsion is a mixture of two or more liquids that are normally immiscible. Emulsions are part of a more general class of two-phase systems of matter called colloids.

3 0
3 years ago
why is the concentration of helium increased in some gas mixtures that divers breath in order to reduce the partial pressure of
sdas [7]

Answer:

Because of oxygen toxicity.

Explanation:

Oxygen toxicity.

Oxygen has been known to cause central nervous system (CNS) toxicity when the pressure gets higher. This toxicity can cause convulsions, and this can cause the diver to drown.

The current standard maximum safe oxygen working pressure is 1.4 atm ppO2. This is equal to 56.5m/185′ when breathing air (21% O2 / 79% N). Below that depth the fraction of oxygen in a breathing gas must be reduced, and in order to maintain this maximum pressure of 1.4 ppO2, Helium must be added.

8 0
3 years ago
What does I stand for?
tatuchka [14]
I: Current
V: Voltage
R: resistance
you’re welcome ;)
7 0
3 years ago
Read 2 more answers
Silicon has 2 isotopes, Silicon-28 with an abundance of 90% and Silicon-30 with an abundance of 10%. Find the AAM for Silicon.
JulsSmile [24]

Answer:

RAM

RAM = (mass \: of \:  ^{28} Si \:  \times \%abundance) + (mass \: of \:  ^{30} Si \:  \times \%abundance) \\ RAM = (28 \times 90\%) + (30 \times 10\%) \\ RAM = 25.2 + 3 \\ RAM = 28.2

5 0
3 years ago
Sulfur dioxide is released when fossil fuels burn. What does sulfur dioxide cause? ASAP PLZ
soldi70 [24.7K]

Answer:

acid rain

Explanation:

When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain. Acid rain can: cause deforestation.

4 0
3 years ago
Other questions:
  • Which phenomena support only the wave theory of light?
    5·2 answers
  • What is formed when two Bromine atoms bond together?
    10·1 answer
  • Can you look people up on brainly
    7·1 answer
  • What effect does nuclear radiation have on atoms?
    11·1 answer
  • What is the mass of 0.25 mol of sulfur atom
    10·1 answer
  • 28. Element X is powerful enough to reduce sodium ions to sodium metal. Barium is a strong enough reducing agent to reduce X +to
    7·1 answer
  • What is the formula for this<br> ionic crystal?
    11·1 answer
  • How many moles of methanol must be burned to release 1454 KJ of energy
    5·1 answer
  • At the end of the school day, the teacher gives each student a compass. She explains that a compass is made of a small piece of
    13·2 answers
  • What do the two arrows in the diagram most likely represent?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!