Answer:
0.0011 M.
Explanation:
Molarity of a substance , is the number of moles present in a liter of solution .
M = n / V
M = molarity
V = volume of solution in liter ,
n = moles of solute ,
Moles is denoted by given mass divided by the molecular mass ,
Hence ,
n = w / m
n = moles ,
w = given mass ,
m = molecular mass .
From the question ,
w = given mass of KMnO₄ = 0.0908 g
and ,
V = 0.500 L
Since ,
we know ,
m = Molecular mass of KMnO₄ = 158 g/mol
using , the above formula to calculate the moles ,
n = w / m = 0.0908 g / 158 g/mol = 0.00057 mol
now , calculating the molarity as ,
M = n / V = 0.00057 mol / 0.500 L = 0.0011 M.
You would want to make sure that you have controlled the variables properly, and if you determine that you did then you would repeat the experiment to be sure of the results.
B
a and c are unrelated
d: ph will increase
The answer is 4! Hope this Helps
The volume of the hydrogen gas would be 116.022 L
<h3>Density</h3>
The density of an object is a measure of how heavy the object is.
Mathematically, the density of an object is given by:
Density = mass/volume.
Thus, given 2 out of the 3 variables that make up the equation, the unknown variable can be calculated.
In this case, the mass and the density of hydrogen were given as 10.326 g and 0.089 g/L respectively.
Therefore, we need to find the volume by making it the subject of the formula from the equation above.
Volume = mass/density.
10.326/0.089 = 116.022 L
This means that the volume of the hydrogen gas is 116.022 L
More on density can be found here: brainly.com/question/15164682
#SPJ1
