About 60 to 64 because 833/13=64
Answer:
The answer is
<h2>0.59 g/cm³</h2>
Explanation:
To find the density of the sphere we use the formula
<h2>

</h2>
To find the density in g/cm³ first convert the mass into grams and the volume into cm³
For the mass we have
155 lb = 70306.82 g
For the volume
4.2 ft³ = 118930.76 cm³
Substitute the values into the above formula
That's
<h2>

</h2>
We have the final answer as
<h3>Density = 0.59 g/cm³</h3>
Hope this helps you
Molecular mass for Manganese is 54.938049
so
100%=54.938049×100/.388=14159.290979381
First convert mass to number of moles. Molar mass
of H2C2O2 • 2H2O = 94 / mol
1.89g / (94 g / mol) = .02 mol H2C2O2 • 2H2O
Then we divide by 0.1 L, or 100 mL, and we get a
concentration of 0.2 M.
Since there are two positive ions (2 H+), therefore
normality is:
<span>0.4 N</span>