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
GenaCL600 [577]
3 years ago
12

What is the wavelength of this radiation in centimeters?

Chemistry
1 answer:
Allushta [10]3 years ago
4 0
multiply by 100.4.36×10-5cm
You might be interested in
Okay this is not school related but how do you not fall for some one so hard .
julia-pushkina [17]

Answer:

Love is not only the thing in this world!

Study hard, you can choose a better way of life.

3 0
3 years ago
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb of energy
umka21 [38]

Answer:

See explanation below

Explanation:

First, you are not providing any data to solve this, so I'm gonna use some that I used a few days ago in the same question. Then, you can go and replace the data you have with the procedure here

The concentration of liquid sodium will be 8.5 MJ of energy, and I will assume that the temperature will not be increased more than 15 °C.

The expression to calculate the amount of energy is:

Q = m * cp * dT

Where: m: moles needed

cp: specific heat of the substance. The cp of liquid sodium reported is 30.8 J/ K mole

Replacing all the data in the above formula, and solving for m we have:

m = Q / cp * dT

dT is the increase of temperature. so 15 ° C is the same change for 15 K.

We also need to know that 1 MJ is 1x10^6 J,

so replacing all data:

m = 8.5 * 1x10^6 J / 30.8 J/K mole * 15 m = 18,398.27 moles

The molar mass of sodium is 22.95 g/mol so the mass is:

mass = 18,398.27 * 22.95 = 422,240.26 g or simply 422 kg rounded.

5 0
3 years ago
Count the atoms in 717 grams of Nitrogen.
MrRissso [65]

Answer:

3.08x10^25

Explanation:

Divide the mass in grams by the molar mass of nitrogen (14.0067), then multiply the result by Avogadro's number (6.022x10^23). Then round to the correct amount of significant figures.

3 0
3 years ago
In the Energy and Specific Heat lab, what temperature should be recorded as the final temperature of the water when measuring th
Anon25 [30]

Answer:

B. The temperature of the water when the food sample has finished burning completely.

Explanation:

Heat or thermal energy is a form of energy that transfers from one object to another due to a temperature difference between the objects. The units for heat are joules or calories.

Calorimetry is the measurement of heat energy released or absorbed in a chemical  reaction. A calorimeter is used in calorimetry. The calorimeter operates on the Law of Conservation of Energy which states that energy is never created or destroyed but is transformed from one form to another or between objects.

In food calorimetry, the energy released when food is burned is measured by recording the rise in temperature of water in a calorimeter when a given mass of a food sample is burned completely.

Energy can be calculated using the formula: Q = mc ∆T

where Q = the energy in joules or calories, m = the mass in grams, c = specific heat and ∆T = the change in temperature (final temperature - initial temperature).

The temperature of the water when the food sample has finished burning completely is taken as the final temperature of the water. The sample is allowed to smolder for sometime before recording the final  water temperature. This is because the water temperature will continue to rise after the  flame has gone out.

6 0
3 years ago
Please Help Me<br> please help me with my attachment
kotykmax [81]
C bc it only has red in it
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement explains why large atoms are more reactive than small atoms?
    11·1 answer
  • Please help me thank you! Stay safe
    14·2 answers
  • Which question can be answered by science? 1 which type of candy taste the best? 2 which backpack do students purchase most offe
    8·1 answer
  • Find the co valance of c in C2S2 ​
    8·1 answer
  • PLEASE HELP QUICK!
    8·1 answer
  • Hey y’all, I’m growing a plant for science class but I need some questions about the plant, can someone please give me atleast 3
    14·1 answer
  • What do the electrons do in a Valteic cell
    7·2 answers
  • This element inthe 5th period wants to gain one electron to make an ionic bond.
    12·2 answers
  • Elabore el balance de la ecuación por oxido reducción enumerando cada paso
    9·1 answer
  • If air is a fluid, why do we not include the buoyant force caused by the displacement of air by the objects in this experiment?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!