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
Mumz [18]
3 years ago
7

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?

Chemistry
1 answer:
Svetradugi [14.3K]3 years ago
3 0
Using the relationship M1V1 = M2V2 where M1 and M2 are the molar concentrations (mol/L or mmol/ml) and V1 and V2 are the volumes of the solutions, we can arrive at the following answer for the given problem:

<span>15.0M (L of stock solution) =  2.35M (0.25L) *all volumes were converted to liters.

L of stock solution = (2.35*0.25)/15.0

Therefore, 0.0392L or 39.17 ml of stock solution is needed. </span>
You might be interested in
Please answer these about Charles law
NNADVOKAT [17]

Answer:

1. V2.

2. 299K.

3. 451K

4. 0.25 x 451 = V2 x 299

Explanation:

1. The data obtained from the question include:

Initial volume (V1) = 0.25mL

Initial temperature (T1) = 26°C

Final temperature (T2) = 178°C

Final volume (V2) =.?

2. Conversion from celsius to Kelvin temperature.

T(K) = T (°C) + 273

Initial temperature (T1) = 26°C

Initial temperature (T1) = 26°C + 273 = 299K

3. Conversion from celsius to Kelvin temperature.

T(K) = T (°C) + 273

Final temperature (T2) = 178°C

Final temperature (T1) = 178°C + 273 = 451K

4. Initial volume (V1) = 0.25mL

Initial temperature (T1) = 299K

Final temperature (T2) = 451K

Final volume (V2) =.?

V1 x T2 = V2 x T1

0.25 x 451 = V2 x 299

6 0
3 years ago
What term refers to the small parts of a cell that carry out different functions?
deff fn [24]
That would be C. Organelles
4 0
3 years ago
How many grams of oxygen are required to burn 0.10mole of c3h8?
Anastaziya [24]
1mol—44g/mol
0.10mol—x
x=0.10*44
x=4.4 g
8 0
3 years ago
A Cyclist rode at an average speed of 10mph for 15 miles. how long was the ride
Setler79 [48]
Hey there Abigaildonaimor,

A cyclist rode at an average speed of 10mph for 15 miles. How long was the ride?

Answer:

Time = Distance / Rate
         = 15 miles / 10mph
         = 1.5 hours

Hope this helps :D

<em>~Natasha♥</em>
6 0
3 years ago
Read 2 more answers
Which statement is true about a fuel cell
ikadub [295]

The answer:

It is self Contained like a battery.

3 0
3 years ago
Other questions:
  • What would be the vapor pressure at 25.0 °c of a solution of 5.00 g of glucose (c6h12o6) in 100.0 g of ethanol (c2h5oh)?
    9·1 answer
  • In a mixture of argon and hydrogen occupying a volume of
    10·1 answer
  • Mr. Peters’ class conducted a fun experiment during class. For homework, Jason had to analyze the data and make a conclusion. Wh
    6·2 answers
  • PLS HELP MEE !! Andy classified some substances as shown in the table.
    14·2 answers
  • In a heat engine, if 700j of heat enters the system, and the piston does 400j of work, what is the final internal (Thermal) ener
    14·2 answers
  • Suppose a liquid level from 5.5 to 8.6 m is linearly converted to pneumatic pressure from 3 to 15 psi. What pressure will result
    14·1 answer
  • Draw the structure of the fat or oil that would result when a glycerol molecule is
    15·1 answer
  • PLEASE HELP QUICK!
    8·1 answer
  • Cesium Bromide and Strontium Nitrate react to form Strontium Bromide and Cesium Nitrate.
    5·1 answer
  • If 20 mL of gas is subjected to a temperature change from 10°C to 100°C and a pressure change from 1 atm to 10 atm,
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!