In periodic tables, the relative atomic mass is usually not a whole number, even though the mass of both protons and neutrons is 1. This is due to isotopes, which are atoms of the same element, but they have different amounts of neutrons in their nuclei. So the relative mass of an individual atom is always a whole number, and the relative atomic mass is an average of all of the isotopes of the element.
Do you mean an actual rate of fast or slow? It'd flow quickly.
Answer:
Explanation: Research has proven that ;
Water is a Polar Covalent Molecule
It consists of 2 Hydrogen molecules bonded to one Oxygen molecule and the two hydrogen atoms are not evenly distributed around the oxygen atom.
Answer:- There are particles in the container present at 23 degree C and 101.3 pKa.
Solution:- The given volume of the container is 4.0 L at 23 degree C and 101.3 kPa pressure.
We would calculate the moles using ideal gas law equation(PV = nRT) and then the moles are converted to particles on multiply the moles by Avogadro number.
Let's convert degree C to kelvin and pKa to atm.
T = 23 + 273 = 296 K
P = 101.3 pKa = 1 atm
R =
V = 4.0 L
n = ?
Let's plug in the values in the equation:
1(4.0) = n(0.0821)(296)
4.0 = n(24.3)
n = 0.165 mol
Let's multiply the moles by Avogadro number to get the number of particles:
= particles
So, from above calculations there would be particles in the container.
With an Ag concentration of 0.020 M and a Pb2+ concentration of 0.0010 M, Only PbSO₄(s) will precipitate. The correct option is C.
<h3>What is molarity?</h3>
Molarity is the measure of the concentration of any solute in per unit volume of the solution.
The equations are
Therefore:
and
Since, , only PbSO₄ will precipitate.
Thus, the correct option is (C) Only PbSO₄(s) will precipitate.
Learn more about precipitation
brainly.com/question/18109776
#SPJ4