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
Jet001 [13]
3 years ago
14

How many moles of NaCl must be dissolved in 0.5 L of water to make a 4 mole/L

Chemistry
1 answer:
kvv77 [185]3 years ago
5 0
C = 4 mol/l
v = 0.5 l

n(NaCl)=cv

n(NaCl) = 4 mol/l · 0.5 l = 2 mol

2 moles of NaCl must be dissolved

You might be interested in
An example of kinetic energy being converted into heat energy
sammy [17]

Answer:

if you drop a water balloon onto the ground, its kinetic energy is converted mostly to thermal energy. If the balloon weighs 1 kilogram and you drop it from about 2 meters, it will heat up by less.

Explanation:

As you say, kinetic energy of large objects can be converted into this thermal energy. For example, if you drop a water balloon onto the ground, its kinetic energy is converted mostly to thermal energy. If the balloon weighs 1 kilogram and you drop it from about 2 meters, it will heat up by less than.

7 0
3 years ago
What type of battery is your flashlight battery?
dalvyx [7]
The type of battery is dry cell batteries
4 0
3 years ago
What happens when a glass of water is set in the sun until the water
zalisa [80]

Answer:

D is the answer

Explanation:

6 0
3 years ago
Ozone is made of oxygen. What is the formula of ozone if 36g occupies 16.8L at STP?
Scilla [17]
The formula of ozone is O3.
Hope this helps~
6 0
4 years ago
Which pair must represent atoms of the same element?
andrew-mc [135]
Your answer is B and the element is Carbon

So what your looking for is matching isotopes. Isotopes are elements that are the same in amount of protons but different in mass meaning different number in neutrons. Because when you add the total protons and neutrons together you get your atomic mass. So this can be written as X=said element, top number above=different atomic mass, bottom number below=atomic number. Hope this help!!

Be careful because answer A has same masses but different atomic numbers so different atoms(elements)!!!
4 0
3 years ago
Other questions:
  • What is the purpose of researching elements on the periodic table?
    14·1 answer
  • Which of the following is not an example of separation by physical means? Select one: a. Distillation b. Sublimation c. Boiling
    15·1 answer
  • For the balanced equation shown below, what would be the limiting reagent if 42.3 grams
    9·1 answer
  • Identify the conjugate acid/base pairs in each of the following equations:
    7·1 answer
  • Describe two examples of something that has potential energy to do something
    6·2 answers
  • The chemical symbol of sodium is<br>​
    14·1 answer
  • What are the structures in which stars are grouped together?
    12·1 answer
  • Which will diffuse the most? The particles with the
    5·1 answer
  • Scientists who study objects in space (astronomers) often scan the sky using devices called radio telescopes. What can you concl
    11·1 answer
  • In a calorimetry experiment 2.50 g of methane is burnt in excess oxygen. 30% of the energy released during the combustion is abs
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!