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
Y_Kistochka [10]
2 years ago
15

2.00 L of 0.800 M NaNO3 must be prepared from a solution known to be 2.50 M in concentration.How many mL are required? Plus don'

t send me virus links!!!! pls explain how to do it​
Chemistry
1 answer:
Morgarella [4.7K]2 years ago
8 0

Answer:

1.36 × 10³ mL of water.

Explanation:

We can utilize the dilution equation. Recall that:

\displaystyle M_1V_1= M_2V_2

Where <em>M</em> represents molarity and <em>V</em> represents volume.

Let the initial concentration and unknown volume be <em>M</em>₁ and <em>V</em>₁, respectively. Let the final concentration and required volume be <em>M</em>₂ and <em>V</em>₂, respectively. Solve for <em>V</em>₁:

\displaystyle \begin{aligned} (2.50\text{ M})V_1 &= (0.800\text{ M})(2.00\text{ L}) \\ \\ V_1 & = 0.640\text{ L} \end{aligned}

Therefore, we can begin with 0.640 L of the 2.50 M solution and add enough distilled water to dilute the solution to 2.00 L. The required amount of water is thus:
\displaystyle 2.00\text{ L} - 0.640\text{ L} = 1.36\text{ L}

Convert this value to mL:
\displaystyle 1.36\text{ L} \cdot \frac{1000\text{ mL}}{1\text{ L}} = 1.36\times 10^3\text{ mL}

Therefore, about 1.36 × 10³ mL of water need to be added to the 2.50 M solution.

You might be interested in
A cell membrane acts as a boundary between the cell and its external environment. What is another role of the cell membrane?
Naddika [18.5K]
The answer is D, it controls what comes in & out the cell, well i hope so!
4 0
2 years ago
Read 2 more answers
As of January 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 yesrs of operating 104 nuclear power plants.
goblinko [34]

Answer:  a. 0.8 tons p. month.

Explanation:

Given: Total nuclear waste = 60,000 metric tons

Time take = 60 years = 12 x 60 months   [ 1 year = 12 months]

=  720 months

Total nuclear power plants = 104

Now , Average  waste produced by each plant = \dfrac{\text{Total waste}}{\text{Time x Number of plants}}

=\dfrac{60000}{720\times104}\approx0.8\text{ tons per month.}

Hence, 0.8 tons p. month is produced by each plant.

So, option a. is correct.

5 0
2 years ago
Read 2 more answers
You are balancing an ionic compound. Let's call it: AB.
rewona [7]

Answer:- A_3B_2

Explanations:- It is given that the charge for A is +2 and the charge for B is -3. The over all compound is neutral means the over all charge is zero. For making the over all charge zero, we need 3 positive ions and 2 negative ions. This makes a +6 charge for A and -6 charge for B and the over all charge is zero.

Also, if we think about the criss cross then charge of A becomes the subscript of B and the charge of B becomes the subscript of A.

So, the formula of the ionic compound is A_3B_2 . In this compound the ratio of A to B is 3:2.

The balanced equation could be shown as:

3A+2B\rightarrow A_3B_2



8 0
3 years ago
Clouds are made up of tiny droplets of water. Which two spheres are clouds a
MaRussiya [10]
C & D, clouds are apart of the Hydro and Atmosphere!
5 0
3 years ago
Consider the perbromate anion. What is the central atom? Enter its chemical symbol. How many lone pairs are around the central a
Yanka [14]

Answer:

See explanation

Explanation:

The central atom in the perbromate ion is bromine. The chemical symbol of bromine is Br. There are no lone pairs around the central bromine atom. The ion is tetrahedral in shape hence we expect a bond angle of 109°. 27 which is the ideal tetrahedral bond angle. The actual bond angle of the prebromate ion is 109.5°. The perbromate ion is BrO4^-

The observed bond angle is very close to the ideal value because of the absence of lone pairs of electrons from the central atom in the ion.

8 0
3 years ago
Other questions:
  • How does intestinal failure affect the body?
    12·1 answer
  • How to balance chemical equations
    12·1 answer
  • What is the correlation between pressure and elevation for an ideal gas?
    9·1 answer
  • A 55.0 L sample of gas at 235 K exerts a pressure of 225 KPa. If its volume is decreased to 42.0 L and the temperature rises to
    6·1 answer
  • List 5-6 facts about earths interior.
    14·1 answer
  • What does dehydration cause?
    7·2 answers
  • When an acetic acid solution is titrated with sodium hydroxide, the slope of the titration curve (pH versus volume of NaOH added
    13·1 answer
  • Which ion has a smaller size,1)N---,O--,F-and Ne 2) Cl-,Br- and I ?Why<br> Help me to solve it!
    11·2 answers
  • How many taste buds are present on the tongue? Name them. ​
    10·1 answer
  • Which actions would the nurse implement when a client develops an anaphylactic reaction? select all that apply. one, some, or al
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!