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
Lelu [443]
3 years ago
11

How many atoms are there in 65.89grams of lead?

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0

Answer:

1.915e23 Atoms

Explanation:

There are 6.02214076e23 is the mass of a mol in amu. Since the amu of lead is 207.2, and there is 65.89 grams of it, you can find that it creates approximately 1.914 atoms.

You might be interested in
Which scientist was the first to use the telescope in astronomy? Copernicus Newton Kepler Galileo
coldgirl [10]

The scientist that was the first to use the telescope in astronomy was Newton

8 0
2 years ago
Which reaction leads to the formation of a precipitate?
Brrunno [24]

2Ca(OH)2(aq) + 2FeCl3(aq) on the dead locs

6 0
3 years ago
Read 2 more answers
The atomic number is always equal to the atomic mass true false
kifflom [539]

Answer:

<h3>A neutral (no charge) particle found in the nucleus of an atom. ... The atomic number of an atom is equal to the number of protons or neutrons? false. The atomic number is always equal to the atomic mass.</h3>
7 0
3 years ago
Before any reaction occurs, the concentration of A in the reaction below is 0.0510 M. What is the equilibrium constant if the co
Lilit [14]

Answer:

0.0119

Explanation:

There was a part missing. I think this is the whole question:

<em>Before any reaction occurs, the concentration of A in the reaction below is 0.0510 M. What is the equilibrium constant if the concentration of A at equilibrium is 0.0153 M?</em>

A (aq) ⇌ 2B (aq) + C(aq)

<em>Remember to use correct significant figures in your answer. Do not include units in your response.</em>

First, we have to make an ICE Chart, which stands for initial, change and equilibrium. We will call "x" unknown concentrations.

        A (aq) ⇌ 2B (aq) + C (aq)

I       0.0510       0            0

C         -x          +2x          +x

E    0.0510-x     2x            x

Since the concentration at equilibrium of A is 0.0153 M, we get

0.0510 - x = 0.0153 \\x = 0.0357

We can use the value of x to calculate the concentrations at equilibrium.

[A]e = 0.0153 M \\[B]e = 2x = 2(0.0357) = 0.0714 M \\[C]e = x = 0.0357 M \\

The equilibrium constant, Kc, is the ratio of the equilibrium concentrations of products over the equilibrium concentrations of reactants each raised to the power of their stoichiometric coefficients.

Kc = \frac{[B]^{2}  \times [C]}{[A]} = \frac{0.0714^{2}  \times 0.0357}{0.0153} = 0.0119

The equilibrium constant for this reaction at equilibrium is 0.0119.

You can learn more about equilibrium here: brainly.com/question/4289021

7 0
2 years ago
Read 2 more answers
Where is the sun shining most directly when we are having summer in the Northern Hemisphere?
NNADVOKAT [17]
The sun will always hit the equator the most no matter the season because of Earths tilt. Which means the Northern tip of South America near Brazil and Colombia will get the most sun.<span />
8 0
3 years ago
Other questions:
  • The radius of a single atom of a generic element x is 197 picometers (pm and a crystal of x has a unit cell that is face-centere
    8·1 answer
  • Consider the following half reactions and their standard reduction potential values to answer the following questions.
    5·1 answer
  • Calculate the volume of a balloon filled with 0.0940 grams of helium, given the fact that the density of helium is 0.179 g/L
    7·1 answer
  • What solid depends on hydrogen bonds to hold it together?
    8·1 answer
  • Which of the following tools was responsible for advancing our knowledge of cells over the past 400 years?
    6·1 answer
  • 10 points<br><br> How many total atoms are in 3(NH4)2S
    12·1 answer
  • the mass concentration the mass concentration for a solution containing 45 g of calcium carbonate is 100 cm3 ​
    8·1 answer
  • Ryan just joined the track team. He runs the 40 yard dash in 6.4 seconds. Explain three human body systems that work together to
    8·1 answer
  • Which statement describes a digital signal?
    14·1 answer
  • Calculate the number of moles in 8 g of water.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!