The atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown bel
2 answers:
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Answer:
0.0250 g
Explanation:
Step 1: Determine the molar mass of Vitamin C.
The molar mass is the mass in grams corresponding to 1 mole. In order to calculate the molar mass of vitamin C (C₆H₈O₆) we need to add the molar masses of the elements that compose it.
M(C₆H₈O₆) = 6 × M(C) + 8 × M(H) + 6 × M(O)
M(C₆H₈O₆) = 6 × 12.01 g/mol + 8 × 1.01 g/mol + 6 × 16.00 g/mol
M(C₆H₈O₆) = 176.14 g/mol
Step 2: Calculate the mass corresponding to 0.000142 mol of vitamin C.
Answer : The specific heat of tin is, 0.213 J/g.K
Explanation :
Formula used :
where,
q = amount of heat lost = -399.4 J
c = specific heat capacity of tin = ?
m = mass of tin = 25.0 g
= final temperature =
= initial temperature =
Now put all the given values in the above formula, we get:
Therefore, the specific heat of tin is, 0.213 J/g.K