Answer: h= 5.08
Step-by-step explanation:
In a parallelogram , the formula to find the area of the parallelogram is given by :-
, where b is the base and h is the height of the parallelogram.
Given : A=64 h=? b= 12.6
Substitute these values in the above formula , we get
Divide both sides by 12.6 , we get
∴ The missing variable : h= 5.08
The balanced chemical reaction is:
<span>Ca(OH)2 + 2 HCl = 2 H2 O + CaCl2
</span>
We are given the amount of hydrochloric acid to be used in the reaction. This will be the starting point for the calculations.
0.124 mol HCl / L soln ( .0375 L solution) ( 1 mol Ca(OH)2 / 2 mol HCl) / 0.020 L Ca(OH)2 solution = 0.12 mol / L Ca(OH)2 = 0.12 M
Count how many decimal places you need to move to the right until you get to:
1.203 and then multiply that by 10 raised to the power of the number of places you moved the decimal point...in this case it had to move 10 places so:
1.203X10^-10
Answer: he washed 18 windows
Step-by-step explanation: count by 10
