173Lu has how many protons and neutrons
1 answer:
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Answer:
The mass percent of copper as element is the same.
Explanation:
First of all we need the reaction that is presented below:
→
The mass percent of copper (Cu) as element is the same because of during the reaction the element only transform its nature from copper carbonate () to copper oxide (
), the latter is a solid and will remain in the system.
On the other hand, you will note that the global percentage mass will be small because of the reaction produce () that is a gas and this one will escape for the system.
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Answer : The volume of produced at standard conditions of temperature and pressure is 0.2422 L
Explanation :
Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.
The combined gas equation is,
where,
= initial pressure of
gas = (740-22.4) torr = 717.6 torr
= final pressure of
gas at STP= 760 torr
= initial volume of
gas = 280 mL
= final volume of
gas at STP = ?
= initial temperature of
gas =
= final temperature of
gas =
Now put all the given values in the above equation, we get:
Therefore, the volume of produced at standard conditions of temperature and pressure is 0.2422 L