Answer:
It is equal to Avogadro's number (NA), namely 6.022 x1023. If we have one mole of water, then we know that it will have a mass of 2 grams (for 2 moles of H atoms) + 16 grams (for one mole O atom) = 18 grams.
Explanation:
The question is not very much clear.
If you are asking for molecules then 1 mole water= 6.023 * 10^23
If you are asking for atoms then 1 mole water= 6.023 * 10^23 * 3
If you are asking for particles then,
So, in your example you would have one mole of water molecules. If you dissociated those water molecules, than you would end up with 2 moles of hydrogen atoms, and one mole of oxygen atoms.
I hope that was helpful!
H=1 proton,1 electron
O=8 protons,8 neutrons and 8 electrons
total particles in one H2O molecule-28
total no. of particles in 1 mole of water- 6.023 * 10^23 * 28
2. The coefficients represent to molar ratios in a balanced equation.
Answer:
10-9 Millimeters/liters
Explanation:
Because 10-9 M Is more than 10-8 M
I hope this is correct
oxygen is in gaseous state at this temperature
The density of the metal is 6.51 g/cm3 .
<h3>What is density, for instance?</h3>
How much "stuff" is contained in a specific quantity of space is determined by its density. For instance, a block of the harder, lighter material gold (Au) will be denser than a block of the heaviest element lead (Pb) (Au). Styrofoam blocks are less dense than bricks. Mass per unit size serves as its definition.
Briefing :
mass, m = 114 g
initial volume, V1 = 25 mL
final volume, V2 = 42.5 mL
Volume of the metal piece, V = V2 - V1
= 42.5 - 25
= 17.5 mL
1 mL = 1 c.c
So, Volume of metal, V = 17.5 c.c.
Let the density of the metal is d.
density = mass / volume
d = 114 / 17.5
= 6.51 g/c.c
Thus, the density of metal is 6.51 g/c.c.
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