Answer:
0.427 g HClO4
Explanation:
[H+]= 10^-3.3 = 5.01 x 10^-4 M
8500 mL=8.5 L
M= mol solute/ L solution
mol solute= M* L solution
mol solute= (5.01 x 10^-4 M * 8.5 L)
mol solute= 4.26 x 10^3 mol HClO4
1 mol HClO4 -> 100. 4 g
4.26 x 10^3 mol HClO4 -> x
x=0.427 g HClO4
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Since Janice was given a mixture of alcohol and water, her teacher suggested that she use temperature to separate the two substances. The property demonstrated by the experiment is D. boiling. The boiling point refers to the temperature at which the liquid phase of the substance will turn into vapor. Water is known to boil at 100°C at atmospheric pressure while alcohols are generally known to have a boiling point lower than that of water. In this experiment, knowing that the two substances had a significant difference in boiling temperature was crucial to be able to separate them into their pure substances.
Answer : Music is read differently in the brain than
nonmusical tones and is connected to many different areas of the brain. Learning music
relegates a larger part of the brain to recognizing and interpreting music. Listening to
music has also been found to have an effect on learning.
Answer:
x = 33.52 amu
Explanation:
It is given that,
Isotope A has a mass of 34 amu and an abundance of 52%, isotope B has a mass of 33 amu and an abundance of 48%.
Let x is the average atomic mass of this element. It can be calculated as follows :
So, the average atomic mass of this element is 33.52 amu.