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
Kruka [31]
3 years ago
11

How much water must be added to a 25 mL sample of 1.5 M sodium sulfate in order to make it 0.20 M?

Chemistry
1 answer:
In-s [12.5K]3 years ago
4 0

Answer:

162.5 mL

Explanation:

M1*V1 = M2*V2

M - molarity

V - volume of solution

25*1.5 = 0.20 *V2

V2 = (25*1.5)/0.20= 187.5 mL of solution 2.

We had 25 mL of solution 1,  solution 2 should have volume 187.5 mL,

so we have to add V2 - V1 = 187.5 - 25 = 162.5 mL of water, or ≈ 163 mL

You might be interested in
Which of the following statements concerning the density of a gas is true?
Naya [18.7K]

Answer:

can u give us the options

5 0
3 years ago
Is water denser than vinegar
Umnica [9.8K]
Vinegar is denser than water
3 0
3 years ago
Read 2 more answers
Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life of chromium-51 is 27.7 days.
8090 [49]

Answer:

11.9g remains after 48.2 days

Explanation:

All isotope decay follows the equation:

ln [A] = -kt + ln [A]₀

<em>Where [A] is actual amount of the isotope after time t, k is decay constant and [A]₀ the initial amount of the isotope</em>

We can find k from half-life as follows:

k = ln 2 / Half-Life

k = ln2 / 27.7 days

k = 0.025 days⁻¹

t = 48.2 days

[A]  = ?

[A]₀ = 39.7mg

ln [A] = -0.025 days⁻¹*48.2 days + ln [39.7mg]

ln[A] = 2.476

[A] = 11.9g remains after 48.2 days

<em />

8 0
3 years ago
0.1400 mole of sucrose, C12H22O11, contains ________ moles of C.
joja [24]

Answer:

it has 12 carbon atoms and 22 hydrogen atoms and 11 oxygen atoms

Explanation:

5 0
3 years ago
Which process involves an increase in the size of an individual cell or a multi-cellular organism?
ra1l [238]

I believe the answer is A mitosis

6 0
4 years ago
Other questions:
  • What is the percent by mass of potassium in K3Fe(CN)6?
    8·2 answers
  • Which formula represents a molecule with the most polar bond
    9·1 answer
  • PLEASE HELP<br><br> (1.1232 x 10^5)(6.022 x 10^17).
    6·1 answer
  • 40.002 g : 13.000005 g =
    13·1 answer
  • What is the average speed (actually the root-mean-square speed) of a argon atom at 27°C?
    6·1 answer
  • Why do compounds have different conductivity values if they are the same type of compound?
    14·1 answer
  • What volume of air contains 10.0g of oxygen gas at 273 k and 1.00 atm?
    5·2 answers
  • Please help me! Thank you<br> (Image down bellow)
    6·2 answers
  • Delocalization which occurs through overlap between stigma and p orbitals
    6·1 answer
  • ( urgent i have limited time ! please help me solve i'll give brainlist )
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!