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
taurus [48]
3 years ago
14

What is the mass of 2.5 mol of ca, which has a molar mass of g/mol

Chemistry
1 answer:
swat323 years ago
3 0
Atomic mass Ca = 40 a.m.u

1 mole Ca ----------- 40 g
2.5 mols Ca -------- ( mass Ca )

Mass Ca = 2.5 x 40 / 1

Mass Ca = 100 / 1

= 100 g of Ca

hope this helps!
You might be interested in
Hydrogen can reduce copper oxide but not aluminium oxide explain​
Llana [10]

Answer: as copper has lower electrode potential value than hydrogen, it could be reduced by hydrogen.

Explanation: hydrogen has zero reduction potential while Cu has +0.34V and Al has -1.66 V .

SO in electrochemical series who has most negative or less reduction potential value tends to be a good reducing agent than the other.

Hope it helps...

3 0
3 years ago
Read 2 more answers
Which process(es) can be used to separate mixtures but not compounds?
hodyreva [135]
Think it would be distillation
3 0
3 years ago
Question 4(Multiple Choice Worth 4 points)
vitfil [10]

Answer:

The quantum number that describes the orientation of an orbital within a sublevel is the magnetic quantum number.

Explanation:

There are four quantum numbers in chemistry. These are the principal quantum number, the angular momentum quantum number, the magnetic quantum number, and the spin quantum number. These all follow these three foundational rules in chemistry.

The Pauli exclusion principle states that if two electrons inhabit the same orbital, they will spin in different directions.

Hund's rule states that if an orbital does not have an electron, an electron will need to fill it first before any of the other orbitals can have two electrons of differing spins.

The Aufbau principle states that all electrons will fill orbitals in an orderly fashion based on the quantum numbers.  An attachment is included of this fill order for your reference.

The four quantum numbers for chemistry are:

The principal quantum number describes the sublevel in which the orbital is located. This occurs at n = 1, 2, 3, etc. all the way to 7.

The angular momentum quantum number describes the orbital that an electron fills. It will refer to the shape and the type of orbital.  

The magnetic quantum number refers to the orientation of an orbital. Based on the angular momentum quantum number, there can be 1, 3, 5, or 7 orientations.

The spin quantum number refers to the Pauli exclusion principle. This number is assigned a negative or positive based on the orientation of the electron.

Therefore, because the magnetic quantum number is the one that refers to <u>the orientation of the orbital</u>, this is our answer.

5 0
3 years ago
What is hydrocabron ​
navik [9.2K]

Answer:

Hydrocarbon is a Compound that is made up of Carbon and Hydrogen .

6 0
3 years ago
What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of.
Citrus2011 [14]

Answer:

I think u understand this answers

4 0
3 years ago
Other questions:
  • What are the most enzymes in the body?
    5·1 answer
  • An ideal monatomic gas at 300 K expands adiabatically to twice its initial volume. Assume that the process is also quasistatic.
    9·1 answer
  • Please help me i don’t understand.
    6·1 answer
  • Chemicals that help chemical reactions occur at faster rates in living organisms are known as _______.
    10·2 answers
  • HCN(aq)+SO4-2(aq)HSO4-(aq)+CN-(aq)
    7·1 answer
  • Which chemical equation represents a precipitation reaction?
    6·1 answer
  • Complete the following combustion reaction
    7·1 answer
  • All of the following are landforms that can contribute to climate EXCEPT
    9·1 answer
  • El acido nitrico se obtiene industrialmente por oxidacion de amoniaco (nh3), de acuerdo con la ecuacion: 4nh3 + 702 - h2o + hno2
    15·1 answer
  • If I have a +2 oxidation number do I give up or accept electrons?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!