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
jok3333 [9.3K]
3 years ago
13

Suppose you needed a 0.0250 M sodium thiosulfate solution to conduct 6 titrations. Explain how you would make up this solution u

sing a 0.4782 M stock solution of sodium thiosulfate. Include all necessary measured quantities, lab techniques and the glassware you would use.
Chemistry
1 answer:
AysviL [449]3 years ago
4 0

Explanation:

According to the law of dilution,

       M_{1}V_{1} = M_{2}V_{2}

The given data is as follows.

   M_{1} = 0.4782,     V_{1} = ?

    M_{2} = 0.025 ,    V_{2} = 250 mL

Hence, we will calculate the value of V_{1} as follows.

              V_{1} = \frac{M_{2} \times V_{2}}{M_{1}}

                          = \frac{0.025 \times 250}{0.4782}

                          = 13.07

Thus, we can conclude that we need 13.07 mL 0.4782 M sodium thiosulfate solution using pipette.

You might be interested in
Indicar la cantidad de sustancia en: a) 2.0L de un gas en C.N; b) 22.4 mL de un gas a 755 torr y 26 grados celsius?
nekit [7.7K]

Answer:

El termopar B presenta un mayor grado de dispersión y también es más preciso. ... (c) La estimación para T = 175 ° C es probablemente la más cercana al valor real, porque el ... (cm3). Flujo de masa. Velocidad. (kg / min). Diferencia. Duplicar. (Di). Yo y yo. 2. 1 ... atm de gas. 2. 2. 2 f. 3. 2 f f. 30 14,7 lb 20 pulg. 4 14,7 lb 24 pulg 392 lb 7,00 10 lb pulg.

8 0
3 years ago
Which molecule would provide the most accurate value for the bond length of a nitrogen-nitrogen double bond
vredina [299]

Answer:

i dont know, i wish i could help

Explanation:

7 0
2 years ago
Isotopes have question 2 options: a) a different number of neutrons in their nuclei. b) a different number of protons in their n
vfiekz [6]

Answer:

A

Explanation:

Isotopes are atoms of the same element with the same number of protons and electrons but different numbers of neutrons.

Isotopes can also be defined as atoms of the same element with the same atomic number but different mass numbers e.g isotopes of chlorine, oxygen and so on.Oxygen for instance has three isotopes with the same atomic number,8 and different mass numbers,16,17 and 18.

6 0
2 years ago
What percentage of Earth's freshwater is found in lakes, rivers, and streams?
valentinak56 [21]
The answer is (D)69%
5 0
3 years ago
Hydrogen has a red emission line at 656.3 nm, what is the energy and frequency of a photon of this light? Note: planck's constan
Yuliya22 [10]

We know that

Speed of light = wavelength X frequency

Energy of light = h X frequency

Where

h = planck's constant = 6.626 x 10–34 j·s

frequency = speed of light / wavelength = 2.998 x 10^8 m/s / 656.3 X 10^-9

frequency = 4.57 X 10^14 / s

Energy = 6.626 x 10–34 j·s X 4.57 X 10^14 / s = 3.028 X 10^-19 Joules


6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is similar among all living organisms on Earth?
    5·1 answer
  • A 30.0 g sample of a metal was heated in a hot water bath to 80°c. it was then quickly transferred to a coffee-cup calorimeter.
    15·2 answers
  • An equilibrium mixture of CO, O2 and CO2 at a certain temperature contains 0.0010 M CO2 and 0.0100 M O2. At this temperature, Kc
    11·2 answers
  • In the chemical equation Zn + 2HCL -----> ZnCl2 + H2
    9·1 answer
  • Use Q = mcAT
    14·1 answer
  • What are isotopes......
    11·2 answers
  • Find the molar mass of Ca(NO3)2
    5·2 answers
  • A reaction A(aq)+B(aq)↽−−⇀C(aq) has a standard free‑energy change of −4.51 kJ/mol at 25 °C.
    11·1 answer
  • An atom is a neutral particle why​
    11·2 answers
  • What happens when: sulphuric acid reacts with zinc.​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!