What are some ways we explore space unmanned?
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You can acquire the atomic mass of any chemical element by using the periodic table. I've provided an example on a document below to help you identify the components of an <em>element </em>block from the periodic table. Now if you want to find the mass of an exact amount of a substance you use moles for that. That's why it's called molar mass. To find the molar mass of a substance follow this little guide:
- Start with the number of grams of each element given.
- Convert the mass of each element to moles utilizing the molar mass from the periodic table.
- Divide each mole value by the smallest number of moles deciphered.
- Round your answer. This is the mole ratio of the element.
*Use the third document I've inserted below to follow the guide.
<u>*</u><u>All documents used here are property of their respective owners</u><u>*</u>
Answer : The amount of in kilojoules released is, -5.53 kJ
Explanation :
Formula used :
where,
q = heat released = ?
c = specific heat of ethanol =
m = mass of ethanol = 23.4 g
= final temperature =
= initial temperature =
Now put all the given values in the above formula, we get:
Therefore, the amount of in kilojoules released is, -5.53 kJ