I believe the correct response is A. A solution with a pH close to 14 is considered a strong base.
Most particles in the plasma are heavy and slow and this statement explains why a plasma based light does not have a high temperature. The correct option among all the options that are given in the question is the third option. It is a fact that a heavy nuclei always takes more time to reach a thermal equilibrium.
1.2 mm
a) Calculate the <em>volume</em> of the block
<em>V </em>= 50 g x (1 cm^3/8.64 g) = 5.79 cm^3
b) Calculate the <em>height</em> of the block
The formula for the volume (V) of a block is
<em>V = lwh
</em>
where
<em>l</em> = the length of the block
<em>w</em> = the width of the block
<em>h</em> = the height of the block
We can solve this formula for the height.
<em>h = V</em>/(<em>lw</em>)
∴ <em>h</em> = 5.79 cm^3/(10 cm x 5 cm) = 0.12 cm = 1.2 mm
Answer:
Molarity of Sr(OH)₂ = 0.47 M
Explanation:
Given data:
Volume of Sr(OH)₂ = 15.0 mL
Volume of HCl = 38.5 mL (0.0385 L)
Molarity of HCl = 0.350 M
Concentration/Molarity of Sr(OH)₂ = ?
Solution:
Chemical equation:
Sr(OH)₂ + 2HCl → SrCl₂ +2H₂O
Number of moles of HCl:
Molarity = number of moles/ volume in L
0.350 M = number of moles/0.0385 L
Number of moles = 0.350 mol/L× 0.0385 L
Number of moles = 0.0135 mol
Now we will compare the moles of HCl with Sr(OH)₂.
HCl : Sr(OH)₂
2 : 1
0.0135 : 1/2×0.0135 = 0.007 mol
Molarity/concentration of Sr(OH)₂:
Molarity = number of moles / volume in L
Molarity = 0.007 mol /0.015 L
Molarity = 0.47 M
The answer is c because the subject thinks that they will be shocked when then might not
