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
aleksley [76]
3 years ago
5

What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?

Chemistry
2 answers:
Leno4ka [110]3 years ago
3 0

2.0 L

Answer:

Solution given:

no. of mole(n)=3.0mole

molarity(M)=1.5M

we have

<u>Volume of a substance is equal to the ratio of its no of mole to its molarity.</u>

By this we get a relation:

Volume=no.of mole/molarity

substituting value

Volume=3.0/1.5=2

The required volume is 2 litre.

Aleksandr-060686 [28]3 years ago
3 0

Explanation:

here's the answer to your question

You might be interested in
If 65.5 moles of an ideal gas is at 9.15 atm at 50.30 °C, what is the volume of the gas?
qwelly [4]
To calculate for the volume, we need a relation to relate the number of moles (n), pressure (P), and temperature (T) with volume (V). For simplification, we assume the gas is an ideal gas. So, we use PV=nRT.

PV = nRT  where R is the universal gas constant
V = nRT / P
V = 65.5 ( 0.08205 ) (273.15 + 50.30) / 9.15 
V = 189.98 L
7 0
3 years ago
A sample of gas has a density of 0.53 g/L at 225 K and under a pressure of 108.8 kPa. Find the density of the gas at 345 K under
sukhopar [10]

Answer:

\rho _2=0.22g/L

Explanation:

Hello!

In this case, since we are considering an gas, which can be considered as idea, we can write the ideal gas equation in order to write it in terms of density rather than moles and volume:

PV=nRT\\\\PV=\frac{m}{MM} RT\\\\P*MM=\frac{m}{V} RT\\\\P*MM=\rho RT

Whereas MM is the molar mass of the gas. Now, since we can identify the initial and final states, we can cancel out R and MM since they remain the same:

\frac{P_1*MM}{P_2*MM} =\frac{\rho _1RT_1}{\rho _2RT_2} \\\\\frac{P_1}{P_2} =\frac{\rho _1T_1}{\rho _2T_2}

It means we can compute the final density as shown below:

\rho _2=\frac{\rho _1T_1P_2}{P_1T_2}

Now, we plug in to obtain:

\rho _2=\frac{0.53g/L*225K*68.3kPa}{345K*108.8kPa}\\\\\rho _2=0.22g/L

Regards!

8 0
2 years ago
1. Most of the chemicals included in your General Chemistry Lab kit can be discarded down a drain. Describe a situation in which
Tju [1.3M]

Answer: Chemicals like acids and bases are harmful and must be neutralized before draining.

Explanation:

A strong acid or strong base is required to be diluted or neutralized before it is discarded in the drain as if is discarded without diluting and neutralization it can spill and splash from sink or drain and can harm people in chemistry lab, moreover the fumes of the discarded chemical on spilling can cause respiratory tract burning and can even cause fire hazard so it must be converted into less harmful form and then must be drained.  

5 0
2 years ago
In the molecules below, areas that have a partial negative charge are pink and areas that have a partial positive charge are blu
Kaylis [27]

Answer:

Dipole-dipole interactions

Step-by-step explanation:

Each molecule consists of <em>two different elements</em>.

Thus, each molecule has permanent <em>bond dipoles</em>.

The dipoles do not cancel, so the attractive forces are dipole-dipole attractions.

"Covalent bonds" is <em>wrong,</em> because there are no bonds between the two molecules.

There are dipole-induced dipole and London dispersion forces, but they are much weaker than the dipole-dipole attractions.

4 0
3 years ago
How many hybrid orbitals are found in CCl4? o one o two o three o four​
BlackZzzverrR [31]

Answer:

I Believe it is 4 orbitals s,p,p,p or aka sp^3

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • In 100 grams of sweet peas there are 14.5 carbohydrates,5.7 grams of sugars,5.1 grams of dietary fiber, 5.4 grams of protein and
    14·1 answer
  • Consider the following intermediate chemical equations.
    5·1 answer
  • How many carbon atoms will be in the longest chain of 2,2,4-trimethylpentane
    13·1 answer
  • According to Le Châtelier's principle, a system at equilibrium will respond to a stress by shifting in the direction that reliev
    5·1 answer
  • PLEASE explain your answer!!!!​
    8·1 answer
  • Give the chemical symbol of an element in the third period (row) of the periodic table with four 3p electrons.
    8·1 answer
  • The trend in electronegativity is F &gt;Cl &gt;Br; therefore, the most ionic compound (CH2F2) has the lowest boiling point, and
    11·1 answer
  • Priscilla was building a circuit that used copper wires to connect a battery to a light bulb. As she connected the final wire fr
    5·1 answer
  • A scientist has a container with a substance inside. At first, the molecules in the substance move away from each other. Later,
    7·1 answer
  • 15. What type of energy changes the physical states of matter?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!