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
bogdanovich [222]
3 years ago
10

What volume in mL of 0.300 M NaF would be required to make a 0.0450 M solution of NaF when diluted to 250.0 mL with water?

Chemistry
1 answer:
alina1380 [7]3 years ago
4 0

Answer: A volume of 37.5 mL of 0.300 M NaF would be required to make a 0.0450 M solution of NaF when diluted to 250.0 mL with water.

Explanation:

Given: M_{1} = 0.300 M,   V_{1} = ?

M_{2} = 0.0450 M,    V_{1} = 250.0 mL

Formula used is as follows.

M_{1}V_{1} = M_{2}V_{2}

Substitute the values into above formula as follows.

M_{1}V_{1} = M_{2}V_{2} \\0.300 M \times V_{1} = 0.0450 M \times 250.0 mL\\V_{1} = 37.5 mL

Thus, we can conclude that a volume of 37.5 mL of 0.300 M NaF would be required to make a 0.0450 M solution of NaF when diluted to 250.0 mL with water.

You might be interested in
Lt takes 4 hr 39 min for a 2.00-mg sample of radium-230 to decay to 0.25 mg. what is the half-life of radium-230?
Rufina [12.5K]
Radioactive decay => C = Co { e ^ (- kt) |

Data:

Co = 2.00 mg
C = 0.25 mg
t = 4 hr 39 min

Time conversion: 4 hr 39 min = 4.65 hr

1) Replace the data in the equation to find k

C = Co { e ^ (-kt) } => C / Co = e ^ (-kt) => -kt = ln { C / Co} => kt = ln {Co / C}

=> k = ln {Co / C} / t =  ln {2.00mg / 0.25mg} / 4.65 hr = 0.44719

2) Use C / Co  = 1/2 to find the hallf-life

C / Co = e ^ (-kt) => -kt = ln (C / Co)

=> -kt = ln (1/2) => kt = ln(2) => t = ln (2) / k

t = ln(2) / 0.44719 = 1.55 hr.

Answer: 1.55 hr
6 0
3 years ago
Which of the following is NOT a characteristic of a compound?
MissTica

Answer:

I think it's D

sorry if I'm wrong.

Explanation:

4 0
3 years ago
What animals use the earths magnetic field for navigation
Ivenika [448]
Birds use the magnetic fields and some fish i believe as well and maybe butterflies im not entirely sure <span />
6 0
3 years ago
In Keynes's liquidity preference framework, as the expected return on bonds increases (holding everything else unchanged), the e
Julli [10]

Answer:

the correct words to fill up the blank spaces are falls and money

Explanation:

.1. the expected return on money falls

.2. causing the demand for money to fall.

3 0
3 years ago
What power source uses the earths internal heat
nlexa [21]

Answer:

Geothermal power comes from Earth's internal heat

Explanation:

The description applied to power sources tends to match the names applied to the source of energy. Sometimes Latin, or other word derivations are used.

For example, "hydro-" refers to water, so it is no surprise that hydroelectric power comes from the movement of water. Of course, "nuclear" refers to the nuclei of the atoms that are split to release energy in a nuclear power plant. Similarly, "geo-" refers to Earth, and "thermal" refers to heat, so "geothermal" energy is the name given to energy derived from Earth's heat.

7 0
3 years ago
Other questions:
  • Which process absorbs the greatest amount of heat?
    6·1 answer
  • What will be the effect on the concentration of NH3 if the pressure decrease
    9·2 answers
  • Lead (Pb) is used to make a number of different alloys. What is the mass of lead present in an alloy containing 0.15 mol of lead
    7·1 answer
  • Which of the following is true about a compound and its elements?
    10·2 answers
  • Which statement describes the charge of an
    9·1 answer
  • What happens when the south end of Earth’s axis is tilted toward the Sun?
    11·2 answers
  • 40.0 L of oxygen were collected at 10°C and<br> 758 mm of Hg. Calculate its volume at STP.
    15·1 answer
  • What is oxidation number on Ni in the next compound<br> K2[NiBr6] ???
    12·1 answer
  • A student is investigating acceleration using balls with
    13·1 answer
  • Continuing from the last question, what is the new pressure inside the container? Hint: Did we use up all of the reactants?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!