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
Vlada [557]
3 years ago
12

How many grams are in a sample of 0.55 mol of K?

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
4 0
The equation you use here is
mass =moles x Mr

So:
Moles of K - 0.55mol
Mr of K - 39.1

Mass= 0.55x39.1 =21.505g
You might be interested in
What is the name of the ionic compound AlBr3?
Aleksandr [31]

Answer: Correct name will be is aluminum bromide

Explanation:

In a molecular formula ,AlBr_3

Aluminium atoms present = 1  

Bromine atoms present = 3

Charge on aluminium is +3 and charge on bromine is -1.

While naming:

  • Name of the cation is written first. Simple name of the element is written
  • After name of cation name of an anions written with suffix 'ide' in the end.

So, the name of AlBr_3 will be aluminium bromide.

7 0
3 years ago
Read 2 more answers
What’s the number 9.1x10^3 in standard form
mafiozo [28]

Answer:

.0091

Explanation:

3 0
4 years ago
Give an example of how you could test Charles Law?
Assoli18 [71]

Explanation:

The experiment is performed at a constant atmospheric pressure. The experiment proceeds by placing an empty flask in a boiling water bath. As the temperature increases, the air inside the flask expands. Afterwards, the gas is cooled in a water bath by maintaining the amount of the air in the flask constant.

6 0
3 years ago
When matter is heated, particles within the matter will.
alexandr1967 [171]
The answer is A, when these particles are heated they tend to speed up.
7 0
3 years ago
Read 2 more answers
Is pellet of sodium is cut into two parts physical or chemical change?​
Klio2033 [76]

Answer:

physical change

Explanation:

the cutting doesnt change the chemical structure of the sodium

7 0
3 years ago
Other questions:
  • A given mass of oxygen at room temperature occupies a volume of 500.0 ml at 1.50 atm pressure. what pressure must be applied to
    15·1 answer
  • A chemical reaction can start when enough activation energy is added to the reactants. Do you think the activation energy for ch
    11·2 answers
  • True or false
    6·1 answer
  • Equilibrium is established between a liquid and its vapor when A. the rate of evaporation equals the rate of condensation. B. eq
    7·1 answer
  • If 14.5 grams of silver nitrate (molar mass =169.88g/mol) reacts with aluminum chloride. How many grams of aluminum nitrate (mol
    14·1 answer
  • The chemical formula for water is H2O2. True or False
    7·2 answers
  • Describe how the size of the sun compares to the sizes of the other stars.
    13·2 answers
  • What is the compound name to C5H6?
    6·2 answers
  • How many moles of xenon gas are necessary to exert a 0.64atm pressure in an 8.5L container at 300.0K?
    6·2 answers
  • Animals communicate for various reasons, but one main reason is for reproduction. In what ways do animals communicate with other
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!