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
lesya [120]
3 years ago
9

How to prepare 250.00 ml of approximately 1.0 m hcl solution from the 2.5 m hcl solutio?

Chemistry
2 answers:
kirill115 [55]3 years ago
4 0

To solve this we use the equation, 

M1V1 = M2V2

where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.

2.5 M x V1 = 1.0 M x .250 L

<span>V1 = 0.10 L or 100 mL of the 2.5 M HCl solution is needed

Hope this helps.</span>
Soloha48 [4]3 years ago
4 0

Answer: Add 150 ml of water to 100 ml of 2.5 M stock solution.

Explanation: According to the neutralization law,

M_1V_1=M_2V_2

where,

M_1 = molarity of stock solution = 2.5 M

V_1 = volume of stock solution = ?

M_2 = molarity of desired solution = 1.0 M

V_2 = volume of desired solution = 250 ml

Now put all the given values in the above law, we get the volume of stock solution.

(2.5M)\times V_1=(1.0M)\times (250ml)

V_1=100ml

Therefore, 100 ml of 2.5 M of stock solution is taken and 150 ml of water is added to make the volume to 250 ml.

You might be interested in
A student Increases the temperature of a 417 cubic centimeter balloon from 278 K to 231 K. Assuming constant pressure what shoul
WITCHER [35]
Initial Conditions:
Volume= v1= 417 cm³
Temperature= T1 = 278 K
 
Final Conditions:
Temperature= T2 = 231K
Volume = v2 =?

Use the general gas equation;

                                        P1*v1/T1 =  P2*v2/T2
As, the temperature is constant;
 So,
                                               v1/T1 = v2/T2
                                              417/278 = v2/231
                                                  v2= 346.5 cm³                                           
5 0
3 years ago
About how much is one liter?
AleksAgata [21]
Look at the liter man it’s a great way to learn how much every liquid measurement is
7 0
3 years ago
Can you check this for me?
Aliun [14]
Hi, your answer is correct.
3 0
3 years ago
How many H atoms in 12H2O?
Ilya [14]

Answer:

24 atoms of H  or 1.4 x 10²⁵ hydrogen atoms

Explanation:

simple method

1 H₂O has  atoms of hydrogen and 1 atom of oxygen

while 12H₂O will have 24 atoms of hydrogen and 12 atom of oxygen

by Avagadros number

molar mass of water H₂0=18.01528 g/mol

1 mole of H₂0 have 2 moles of Hydrogen  

one mole of water= 6.02⋅10²³water molecules =1.2 x 10²⁴hydrogen atoms

12 mole of H₂O   =    1.2 x 10²⁴ x 12=  1.4 x 10²⁵ hydrogen atoms  

<u />

1.4 x 10²⁵ hydrogen atoms   in 12 moles of H₂O

<u />

3 0
3 years ago
5. The density of ethanol is 0.789 g/mL. Find the mass of a sample of ethanol that has a volume of 150.0 mL.
GenaCL600 [577]
. 00526 g is mass of ethanol
6 0
2 years ago
Other questions:
  • Identify the arrows that show removal of thermal energy when matter changes state.
    5·1 answer
  • After decaying for 48 hours, l/16 of the original mass of a radioisotope sample remains unchanged. What is the half-life of this
    9·1 answer
  • How many grams nano3 add to 500g of h20 prepare solution .5 molal nano3?
    12·1 answer
  • Which of these could be a physical change?
    7·2 answers
  • _____ chemical reactions need a certain amount of activation energy to get started.
    14·1 answer
  • NaOH + HCl → NaCl + H2O
    14·2 answers
  • The melting point of gallium metal is 29.76⁰C. If a piece of gallium is sliced into three parts, the melting point of each part
    6·1 answer
  • Force causes
    8·1 answer
  • Do all mutations affect the STRUCTURE of proteins ? Do all mutations affect the FUNCTIONS of proteins??
    7·1 answer
  • Methane is a major component of natural gas, which is used as a fuel in homes.Write a balanced equation for the complete oxidati
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!