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
Sholpan [36]
3 years ago
5

How many moles of KCl would be dissolved in 4 L of water to make a 2 M solution?

Chemistry
1 answer:
Nataly [62]3 years ago
3 0
Answer:
             Moles  =  8 moles

Solution:
              Molarity is given as,

                         Molarity  =  Moles / Volume of Solution   ------ (1)

Data Given;
                   Molarity  =  2 M

                   Volume  =  4 L

Solving eq.1 for Moles,

                       Moles  =  Molarity × Volume of Solution

Putting values,

                       Moles  =  2 mol.L⁻¹ × 4 L

                       Moles  =  8 moles
You might be interested in
A student has a block of wood. She places it on a wooden desk. She uses a spring scale to measure how much force is needed to sl
yarga [219]
D:friction



Reason:because they are trying different types of things to rub against it and see if it will slow it down



Please give me the bran list answer !
6 0
3 years ago
Read 2 more answers
Rewrite each equation below with the delta h value included with either the reactants or he products , and identify the reaction
grin007 [14]
I will take a stab at it, but there are not equations, did you forget them?
5 0
3 years ago
If you have 8.56 g of H2, how many grams of NH3 can be produced?
Lyrx [107]
 <span>N2 + 3H2 → 2 </span>NH3<span> from bal. rxn., 2 moles of </span>NH3<span> are formed per 3 moles of </span>H2, 2:3 moleH2<span>: 3.64 </span>g<span>/ 2 </span>g<span>/mole </span>H2<span>= 1.82 1.82 moles </span>H2<span> x 2/3 x 17 

</span>
4 0
3 years ago
Question # 4 &amp; 5. help CHEMISTRY
laila [671]
1. A thermodynamic quantity that is the difference between the internal energy of a system and the product of itsabsolute temperature and entropy; the capacity of a system to do work, as in an exothermic chemical reaction.<span>2. </span>A thermodynamic quantity that is the difference between the enthalpy and the product of the absolute temperatureand entropy of a system. Also called <span>Gibbs free energy</span>. 
4 0
3 years ago
He (Helium) is _________ atomic molecule.
babunello [35]

Answer:

Monatomic molecule

Explanation:

Each helium atom has 2 electrons, which is already the maximum no. of electrons that can fit in the first electron shell. When the outermost electron shell is full (2 for the first layer, 8 for others), the atom is stable.

Helium atom itself is already stable, so it doesn't need to combine with another helium atom to form a molecule, hence we call it monatomic.

8 0
3 years ago
Read 2 more answers
Other questions:
  • A light bulb contains 0.0560 g of argon gas with a pressure of 1.34 atm at 26.0 c. The light bulb is then turned on and, after a
    14·1 answer
  • A chemical reaction gives off 1,500 kj of heat energy. about how many calories is this? (1 calorie = 4.18 joules)
    8·2 answers
  • Choose the false statement.
    10·1 answer
  • what if you scored a 0.80 on a test what. fraction of the test in simplest form did you answer correctly
    12·2 answers
  • Calculate the density in g/mL of aluminum with a volume of 3.4mL and a mass of 18.99mg.
    5·1 answer
  • You wish to make a 0.299 M hydroiodic acid solution from a stock solution of 6.00 M hydroiodic acid. How much concentrated acid
    7·1 answer
  • During studies of the reaction below,
    10·1 answer
  • How many grams of potassium bromite are there in .402 moles?
    5·1 answer
  • Why is Newton's first law of motion is sometimes called the law of inertia
    5·1 answer
  • Please help, i will mark you as brainliest​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!