Answer:
6.95 x 10²³ molecules/particles
Explanation:
First we need to find the total Empirical Mass. We can find this by adding each element's mass together.
Al = 26.982,
O = 15.999
H = 1.008
26.982 + 3(15.999) + 3(1.008) = 78.003.
Now we divide by the mass given (90 grams).
90/78.003 = 1.153801777.
We then take that number and multiply it by avogadro's number (6.022 x 10²³)
1.153801777 x avogadro's number = 6.95 x 10²³
Answer:
What happened?
What was the date, time and duration of the incident or behavior?
How many times did this happen?
Where did it happen?
How did it happen?
Did anyone else see it happen? Who? What did they say? What did they do?
Was there physical contact? Describe it. Demonstrate it.
What did you do in response to the incident or behavior?
What did you say in response to the incident or behavior?
How did the subject of the allegation react to your response?
Did you report this to anyone in management? To whom? When? What they say and/or do?
Did you tell anyone about the incident or behavior? Who? What did they say and/or do?
Do you know whether the subject of the allegation has been involved in any other incidents?
Do you know why the incident or behavior occurred?
Do you know anyone else who can shed light on this incident?
Is there anything else you want to tell me that I haven’t asked you?
Explanation:
Answer:
moles = no. of molecules / Avogadro's number
= 2.26 x 10^33 / 6.022 x 10^23
= 3752906011
Round to significant figures which is 3 = 3.75 x 10^9 mol
Explanation: The formula for finding how many moles of a substance when given the amount of molecules is: moles = number of molecules / Avogadro's number
Answer:
Explanation:Energy is the capacity of a physical system to perform work. Energy exists in several forms such as heat , kinetic or mechanical energy, light, potential energy , electrical, or other forms. Energy is the ability to do work. Energy sources could be classified as Renewable and Non-renewable.
