Answer:
4.47 x 10²² atoms
Explanation:
Given parameters:
Mass of Bismuth = 15.5g
Unknown:
Number of atoms = ?
Solution:
To find the number atoms, first solve for the number of moles in this element first.
Number of moles = 
Number of moles = 
= 0.074mole
So:
1 mole of a substance contains 6.02 x 10²³ atoms
0.074 mole of Bismuth will contain 0.074 x 6.02 x 10²³ atoms
= 4.47 x 10²² atoms
In the process of transmission of heat by conduction, a transfer of thermal agitation of particles from a region of higher temperature to one of lower temperature. This is only possible in <span>materials.
True . answer A
hope this helps!</span><span />
Answer:
= 2.33 L
Explanation:
V1/T1 = V2/T2
V1 = 3.0 L
T1 = 78 + 273
= 351 K
At s.t.p the temperature is 273 K and pressure is 1 atm.
V2 = ?
T2 = 273 K
V2 = V1T2/T1
= (3.0 ×273)/351
= 2.33 L
Explanation:
ik it is confusing but that is what i got
Answer:
Sulfur has the same amount, like all the other elements in group 16, has six valence electrons.
Explanation:
Answer:
<h2>106.62 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question
mass = 83.7 g
density = 0.785 g/mL
We have
We have the final answer as
<h3>106.62 mL</h3>
Hope this helps you
