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
kondor19780726 [428]
3 years ago
13

Type the correct answer in the box.

Chemistry
2 answers:
OlgaM077 [116]3 years ago
7 0

Explanation:

Mass number of an atom means the sum of total number of protons and neutrons present in an atom.

On the other hand, atomic number is the total number of protons present in an atom.

Therefore, mass number of phosphorous is 30 g/mol whereas atomic number of phosphorous is 15 g/mol.

Thus, the mass of 1 mole of phosphorus atoms is 30 grams.

tatiyna3 years ago
4 0

the mass of  1  mole of phosphorus atoms is approximately  30 g

hope this helps :)

You might be interested in
Explain why neon is monatomic but chlorine is diatomic.
Elza [17]
Chlorine is a halogen and all halogens and oxygen, nitrogen and hydrogen are diatomics
5 0
3 years ago
Read 2 more answers
The constitutional isomer of ethanol, dimethyl ether (CH3OCH3), is a gas at room temperature. Suggest an explanation for this ob
Sedaia [141]

Answer:

Because of its weak intermolecular forces.

Explanation:

Hello there!

In this case, according to the given description, it turns out possible for us to recall the chemical structures of both ethanol and dimethyl ether as follows:

CH_3CH_2OH\\\\CH_3COCH_3

Thus, we can see that ethanol have London dispersion forces (C-C bonds), dipole-dipole forces (C-O bonds) and also hydrogen bonds (O-H bonds) which make ethanol a liquid due to the strong hydrogen bonds. On the other hand, we can see that dimethyl ether has just London and dipole forces, which are by far weaker than hydrogen bonding, that makes it unstable when liquid and therefore it tends to vaporize quite readily.

Regards!

8 0
3 years ago
56. Explain Why is the chemical composition of<br> water (H2O) always the same?
slega [8]

Answer:

because it's water chemical bonds form when atoms share electrons and example of a chemical compound is water a water molecule forms when oxygen and hydrogen atoms react and are held together by covalent bonds like other compounds water always has the same chemical composition a ratio of two one of hydrogen atoms to oxygen atoms

6 0
2 years ago
Read 2 more answers
IN A MIXTURE OF GASES, HOW IS THE TOTAL PRESSURE RELATED TO THE PARTIAL PRESSURES OF THE GASES INTHE MIXTURE?
larisa86 [58]

Answer:

Partial pressure of gas =  mole fraction of the gas x total pressure

Explanation:

In a gas mixture, the partial pressure of each of the gases present in the gas mixture is proportional to the mole fraction of the gases. The pressure exerted by each of the gas in the gas mixture is known as partial pressure. This is independent of the pressures that is exerted by the gases that is present in the mixture. Therefore, total pressure which is exerted by the gas mixture is the summation of the of the partial pressures of each of the gases in the mixture. This is given by Dalton's law of partial pressures.

Mathematically,

Partial pressure of gas =  mole fraction of the gas x total pressure

6 0
2 years ago
What is the percentage of chlorine in NaCl?
Novosadov [1.4K]

Answer:

60.66 %

Explanation:

The mass percentage of chlorine is 60.66 % chlorine in the compound sodium chloride. To calculate this, add together the mass of one mole of sodium

6 0
3 years ago
Other questions:
  • What is the mass of 99.0 L of NO2 at STP
    6·1 answer
  • A series of five calibration standards 25, 50, 75 and 100 mg/L Potassium is required to be made from a 1000mg/L Potassium standa
    11·1 answer
  • How many grams of Cl are in 38.0 g of each sample of chlorofluorocarbons (CFCs)?
    15·1 answer
  • Which structure is responsible for bringing in the amino acids? (Points : 1)
    12·2 answers
  • Your favorite beach has 42 large sand dunes throughout the course of the year wind erosion destroys eight sand dunes and create
    11·1 answer
  • A/an __ is a type of mass movement that occurs when a thin block of soil, rock, and debris separates from the underlying bedrock
    6·1 answer
  • Imagine a chemist is in the lab and trying to make some chemical reactions happen. In one reaction she reacts chemicals in an ex
    5·1 answer
  • Determine whether a closed spiral notebook with no writing would be chiral or achiral.
    11·1 answer
  • What are the correct coefficients for each reactant and product when this equation is balanced? Make sure to select the correct
    8·1 answer
  • Each element is defined by the number of​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!