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
Rom4ik [11]
3 years ago
12

The metal zirconium becomes superconducting at temperatures below 546 mk. Calculate the temperature at which zirconium becomes s

uperconducting in degrees Celsius. Round your answer to 3 decimal places.
Chemistry
1 answer:
4vir4ik [10]3 years ago
4 0

Answer:

-272.604 °C

Explanation:

The metals can conduct electricity, but this conduction has some resistance, and there're dissipations in the energy during the conduction. Some material has the ability, at very low temperatures, to conduce electricity without the resistance. This ability is called superconducting.

The mK corresponds to the miliKevin, and 1 K = 1000 mK, thus, the temperature in Kevin is 0.546 K.

T(K) = T(°C) + 273.15

T(°C) = T(K) - 273.15

T(°C) = 0.546 - 273.15

T(°C) = -272.604 °C

You might be interested in
The atoms of some radioactive isotopes, or radioisotopes, are used in scientific studies. They are called _______.
lys-0071 [83]

Radioactive Isotopes


Hope this helps

7 0
4 years ago
The amount of I−3(aq) in a solution can be determined by titration with a solution containing a known concentration of S2O2−3(aq
Pavlova-9 [17]

Answer : The molarity of I_3^- in the solution is, 0.128 M

Explanation :

The given balanced chemical reaction is,

2S_2O_2^{-3}(aq)+I_3(aq)\rightarrow S_4O_2^{-6}(aq)+3I^-(aq)

First we have to calculate the moles of Na_2S_2O_3.

\text{Moles of }Na_2S_2O_3=\text{Molarity of }Na_2S_2O_3\times \text{Volume of solution}

\text{Moles of }Na_2S_2O_3=0.260mole/L\times 0.0296L=0.007696mole

Conversion used : (1 L = 1000 ml)

Now we have to calculate the moles of I_3^-.

From the balanced chemical reaction, we conclude that

As, 2 moles of S_2O_2^{-3} react with 1 mole of I_3^-

So, 0.007696 moles of S_2O_2^{-3} react with \frac{0.007696}{2}=0.003848 mole of I_3^-

The moles of I_3^- = 0.003848 mole

Now we have to calculate the molarity of I_3^-.

\text{Molarity of }I_3^-=\frac{\text{Moles of }I_3^-}{\text{Volume of solution}}

Now put all the given values in this formula, we get:

\text{Molarity of }I_3^-=\frac{0.003848mole}{0.03L}=0.128mole/L=0.128M

Therefore, the molarity of I_3^- in the solution is, 0.128 M

8 0
3 years ago
Which of the following metric prefixes are not one multiple of ten when moving forward or backward between prefixes?
velikii [3]

The metric prefixes which is not one multiple of ten when moving forward or backward between prefixes is: none of the above

Option c is the correct answer

<h3>What is metric prefix?</h3>

A metric prefix simply refers to a unit prefix that precedes a basic unit of measure to indicate a multiple or sub-multiple of the unit.

So therefore, the metric prefixes which is not one multiple of ten when moving forward or backward between prefixes is: none of the above

Complete question:

Which of the following metric prefixes are not one multiple of ten when moving forward or backward between prefixes?

a. micro

b.nano

c. none of the above

Learn more about metric prefix:

brainly.com/question/2050691

#SPJ1

8 0
2 years ago
Convert 550 Hm to mm
muminat

Answer:

55,000,000

Explanation:

550 hectometers [hm] = 55,000,000 millimeters [mm]

6 0
3 years ago
11. Which of the following accurately describes properties of valence? A. Nonmetallic elements tend to have a positive valence a
marin [14]
Atoms, the main constituents of matter, consist of positively charged protons and neutral neutrons within a nucleus which are surrounded by a sea of electrons that sit in distinct shells. The electrons on the outer shell are known as valence electrons. The valence can be descibed as the smaller number of electrons an atom has to borrow or to lend, the greater the activity.

The answer is B.


3 0
4 years ago
Other questions:
  • Both gases and ___________ exert a buoyant force.
    13·2 answers
  • Use a Punnett square to predict the results of crosses
    8·1 answer
  • Calcium metal reacts with water to form calcium hydroxide and hydrogen gas. How much hydrogen is formed when 0.50 g of calcium a
    8·1 answer
  • How can the same species of fossil be found on different continents
    5·1 answer
  • An oxide of mercury will thermally decompose when heated. A 0.204 gram sample of the mercury oxide is decomposed to yield 0.189
    12·1 answer
  • Which of the following quantum number combinations is not allowed in an atom?
    6·2 answers
  • Сгорело 6 г угля С. Вычислите массу образовавшегося оксида углерода (IV)<br>просто скажите ответ
    7·1 answer
  • Can somebody help me please
    13·1 answer
  • What is the formula used to calculate the average speed of a moving object?
    9·2 answers
  • Can you please help me
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!