Answer:
12
Explanation:
6 moles multiplied 2 atoms of O2
That gives 12 atoms
Option B is true , the same number of moles of solute in both solution is the same.
<h3>What is Molarity? </h3>
Molarity is the ratio of no of moles as per liter solution. It is denoted by M and SI unit is also M or moles/litre.
Molarity = no . Of moles/Volume (L)
In this question the amount of solution is increased means the volume is increased from 500-700ml it is increased , Molarity is inversly proportional of Volume
it will decrease if volume increase. Adding water do affect the concentration of the solution. The no. Of moles of solute remains because there no increament in amount of NaCl .
Hence ,option B is more correct
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I couldnt see any choices but if any of the awnsers mention the skateborder having pontential energy turning into kinetic energy that one would be right
Answer: The pressure after the tire is heated to 17.3°C is 167 kPa
Explanation:
To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
where,
are the initial pressure and temperature of the gas.
are the final pressure and temperature of the gas.
We are given:
Putting values in above equation, we get:
Hence, the pressure after the tire is heated to 17.3°C is 167 kPa
