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]
2 years ago
12

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

Chemistry
1 answer:
Katyanochek1 [597]2 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
Which pair of atoms is held together by a covalent bond?
Burka [1]
Carbon and oxygen to form carbon
3 0
3 years ago
Which statement is true?
Elena-2011 [213]
The letter only has reflection symmetry, if you rotated it it would look the same.
4 0
3 years ago
1.15.7 cm3 of HCl completely neutralised 25 cm3 of LiOH. The HCl was 2 mol/dm3.The equation is :
Whitepunk [10]

Answer:

C₂ = 1.26 mol/dm³

Explanation:

Given data:

Volume of HCl =V₁ =  15.7 cm³

Volume of LiOH = V₂ =  25 cm³

Concentration of HCl =C₁ = 2 mol/dm³

Concentration of LiOH =C₂=  ?

Solution:

Chemical equation:

LiOH + HCl    →     LiCl + H₂O

Formula:

C₁V₁   = C₂V₂

by putting values,

15.7 cm₃× 2 mol/dm³ = C₂× 25 cm³

C₂ = 15.7 cm₃× 2 mol/dm³ / 25 cm³

C₂ = 31.4 cm₃.mol/dm³ / 25 cm³

C₂ = 1.26 mol/dm³

8 0
3 years ago
What property of water makes it possible for water from the ground to travel all the way up to leaves in the tops of tall trees?
timurjin [86]

Answer:

cohesion-tension

Explanation:

i did the quiz.

7 0
3 years ago
Gaseous neon has a density of 0.900 g/L at standard conditions. How many neon atoms are in 1.00 L of neon gas at standard condit
Anvisha [2.4K]

Answer: 1.348 ×10^23 atoms

Explanation:

Given that volume = 1.00L

At standard condition, the volume of a gas is 22.4L/mol (at S.T.P)

Volume = mole /volume at STP

1 = mole/22.4

Mole= 22.4mol.

Also

Mole = number of atoms /Avogradro constant

Where avogrado's constant = 6.02×10²³

22.4 = number of atoms/6.02×10²³

Number of atoms = 1.348×10^25atoms

3 0
3 years ago
Other questions:
  • Which type of energy would have nothing to do with ironing clothes?
    10·2 answers
  • Calculate the molarity of 0.700 mol of na2s in 1.05 l of solution.
    14·1 answer
  • DEFINE THESE WORDS FOR A TON OF POINTS!!!!!!!
    13·1 answer
  • A boron atom has ____ electrons at the first energy level and ____ electrons at the second energy level.
    13·1 answer
  • Bronze is an alloy, which is what form of matter?
    8·2 answers
  • Are elements always transparent
    14·1 answer
  • A container is filled to a volume of 55.2 L at 61 °C. While keeping the
    14·2 answers
  • How many grams of AlCl3 will be produced if 3.85 moles of Al react? Al + ___Cl2 → ___AlCl3
    7·1 answer
  • Determine the pressure change when a volume of gas at 760 mmHg is heated from 30.0 °C to 40.0 °C.
    12·1 answer
  • A Calorie unit used in food is equal to the amount of energy necessary to raise the temperature of 1 kilogram of water ________
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!