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
Alinara [238K]
3 years ago
6

WILL MARK AS BRAINLIEST! PLEASE HELP

Chemistry
1 answer:
RUDIKE [14]3 years ago
3 0

Answer:

jggjjvficfivfivgihggii

You might be interested in
The photoelectric effect occurs when _____ are emitted from metal when the metal is struck by light of certain frequencies.
Ainat [17]

Answer:

electrons

Explanation:

The photoelectric effect occurs when electrons are emitted from metal when the metal is struck by light of certain frequencies.

Some of the applications of this effect include photomultipliers (which are a key component in spectroscopy instruments) and night vision devices.

4 0
3 years ago
Read 2 more answers
How many molecules are in 23.47 grams of CO2?
Genrish500 [490]

Do a quick conversion: 1 grams Co2 = 0.0084841820909097 mole using the molecular weight calculator and the molar mass of Co2.

8 0
3 years ago
Using a 300 MHz NMR instrument:
Softa [21]

Answer:

a. 750Hz, b. 4.0ppm, c. 600Hz

Explanation:

The Downfield Shift (Hz) is given by the formula

Downfield Shift (Hz) = Chemical Shift (ppm) x Spectrometer Frequency (Hz)

Using the above formula we can solve all three parts easily

a. fspec = 300 MHz, Chem. Shift = 2.5ppm, 1MHz = 10⁶ Hz, 1ppm (parts per million) = 10⁻⁶

Downfield Shift (Hz) = 2.5ppm x 300MHz x (1Hz/10⁶MHz) x (10⁻⁶/1ppm)

Downfield Shift = 750 Hz

The signal is at 750Hz Downfield from TMS

b. Downfield Shift = 1200 Hz, Chemical Shift = ?

Chemical Shift = Downfield shift/Spectrometer Frequency

Chemical Shift = (1200Hz/300MHz) x (1ppm/10⁻⁶) = 4.0 ppm

The signal comes at 4.0 ppm

c. Separation of 2ppm, Downfield Shift = ?

Downfield Shift (Hz) = 2(ppm) x 300 (MHz) x (1Hz/10⁶MHz) x (10⁻⁶/1ppm) = 600 Hz

The two peaks are separated by 600Hz

6 0
3 years ago
What is the function of this instrument?
chubhunter [2.5K]
To measure weight of a item
7 0
3 years ago
Is density a physical property that can be used to identify matter
Ganezh [65]
Yes. density is a physical property that can be used to identify matter
5 0
3 years ago
Other questions:
  • How many moles of sodium metal are needed to make 3.6 moles of sodium chloride?
    12·1 answer
  • 2.
    11·2 answers
  • Compounds may be represented by chemical formulas. In the chemical formula for water which is H20, the 2 which represents the nu
    11·2 answers
  • In the whole earth, the four most common elements (by mass) are oxygen, silicon, magnesium, and ________.
    10·2 answers
  • _______ rock can be changed directly into _______ rock with the application of heat and pressure.
    8·1 answer
  • How many atoms does an element make up
    12·2 answers
  • If a neutral atom has a mass of 12 amu and an atomic number of 5, determine the number of protons, neutrons, and electrons in th
    14·2 answers
  • Protons are located in the nucleus of the atom. A proton has
    15·2 answers
  • What is our solar System inside
    14·2 answers
  • Which two statements are true about redox reactions?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!