Explanation:
Calculate the "m" and "M" of a percentage concentration of 45% m / m, which has a solution D 1.25 g / ml and a mass of 125g.
Given data is:
The mass % of the solution is 45%.
The density of the solution is 1.25 g/mL.
The mass of the solution is 125 g.
Molarity of solution is:
The volume of the solution is:
From mass% of the solution, the mass of solute HNO_3 can be calculated.
The number of moles of HNO3 is :
The molarity is:
The molality is:
Oxygen cannot be broken down into a simpler substance by using chemicals :) Hope this helps and the other answer gets removed :)
Usually the controlled experiment is the one that is not tested so they look at the experimental experiment to find the differences. Sorry if this doesn't answer your question.
Explanation;
Writing scientific notation :
- Move the decimal to the left side until single digit of number remains before the decimal.
- Then we will count the number of times we moved the decimal. Write this number as the exponential power of number '10'.
- For Example:
Radius of the sun = 696,000.0 kilometer
Radius of the sun can also be written as = 
Size of bacterial cell = 
millimeter
Size of bacterial cell can also be written as = 
