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
yan [13]
2 years ago
9

What is the mass of chlorine in 3.9 x 1019 molecules of Cl2?

Chemistry
1 answer:
Ray Of Light [21]2 years ago
3 0

Explanation:

A photon is a quantum of EM radiation. Its energy is given by E = hf and is related to the frequency f and wavelength λ of the radiation by

E=hf=hcλ(energy of a photon)E=hf=hcλ(energy of a photon),

where E is the energy of a single photon and c is the speed of light. When working with small systems, energy in eV is often useful. Note that Planck’s constant in these units is h = 4.14 × 10−15 eV · s.

Since many wavelengths are stated in nanometers (nm), it is also useful to know that hc = 1240 eV · nm.

These will make many calculations a little easier.

All EM radiation is composed of photons. Figure 1 shows various divisions of the EM spectrum plotted against wavelength, frequency, and photon energy. Previously in this book, photon characteristics were alluded to in the discussion of some of the characteristics of UV, x rays, and γ rays, the first of which start with frequencies just above violet in the visible spectrum. It was noted that these types of EM radiation have characteristics much different than visible light. We can now see that such properties arise because photon energy is larger at high frequencies.

You might be interested in
Is 8 inches enough to satisfy a girl
dimulka [17.4K]

Answer:

Yes

Explanation:

8 0
3 years ago
Read 2 more answers
Based on your observations, which equation best models the reaction of vinegar (C2H4O2) and baking soda (NaHCO3)? Explain.
tensa zangetsu [6.8K]

Answer:  im in 8th they got me doin this

Explanation: i need help quick

8 0
3 years ago
The air inside a hot-air balloon is heated to 59.00 °C (Tinitial) and then cools to 39.00 °C (Tfinal). By what percentage does t
Mama L [17]

Answer:

6.1%

Explanation:

Assuming pressure inside balloon remains constant during the temperature change.

Therefore, as per Charles' law  at constant pressure,

\frac{V_1}{T_1} =\frac{V_2}{T_2}

T_2=39\°\ C=39+273=312\ K

T_1=59°\ C=273+59=332\ K

V_2=V_1\times \frac{T_2}{T_1} \\=V_1\times\frac{312}{332}\\=0.939V_1

Percentage change in volume

\%\ change\ in\ volume=\frac{V_1-0.939V_1}{V_1} \times 100\\=6.1\%

Change in volume of the balloon is 6.1%

4 0
3 years ago
Help asap plz!!
musickatia [10]

Answer:

Large change in temperature makes heat flow fast.

Explanation:

3 0
3 years ago
How many moles of carbon are in 3.7 moles of C 8 H11 NO2
Dafna1 [17]
In every molecule of C_{8} H_{11}NO_2 there is 8 atoms of Carbon.

IF we have 3.7 moles of C_{8} H_{11}NO_2 to find the number of moles of Carbon, just multiply by 8

3.7 * 8 = 29.6 mol Carbon
6 0
3 years ago
Other questions:
  • What will a bowling ball that is standing still on a table do?
    12·1 answer
  • How many phase rule variables must be specified to fix the thermodynamic state of each of the following systems? Show how you de
    15·1 answer
  • What is the definition of to squeeze a gas into a smaller space
    5·2 answers
  • Scientist can determine the age of ancient objects by a method called radiocarbon dating. The bombardment of the upper atmospher
    11·1 answer
  • What is the temperature, in degrees Celsius, of a substance with a temperature of 49K? –322°C –224°C 224°C 322°C
    5·1 answer
  • Gaseous C2H4 reacts with O2 according to the following equation:
    13·2 answers
  • Why are polar solutions not electrolytic?
    14·1 answer
  • (Please Help)
    15·2 answers
  • What kind of weather is associated with high air pressure?
    15·2 answers
  • Which is the heaviest element produced in large stars by nuclear fusion near the end of their life cycle?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!