Answer:
2523.23 cal / g
Explanation:
Mass = 6.80g
Temperature increase (T2 - T1) = 2.25
Heat capaity of calorimeter = 32.00kJK-1 = 7.64818 KcalK-1 ( Converting to calories by multiplying by 4.18)
Heat capacity = 7648.18 cal (converting to cal by mutltiplying by 1000)
Heat capacity = Heat Supplied / Temperature rise
Heat Supplied = Heat capacity * Temperature rise
Heat supplied = 7648.18 * 2.25
Heat Supplied = 17208.405 cal
To obtain the per gram value, we divide by the mass.
This gives us; 17208.405 / 6.80 = 2523.23 cal / g
1.) googles, and the second is either gloves or a lab coat.
Answer: The correct option is D.
Explanation:
In option A:
The names of both the ions are correct but the representation of lithium ion is wrong. Lithium forms a cation and here lithium anion is shown. So, this option is not correct.
In option B:
Here, the representation and name of is written wrong. This ion has a representation of and is named as oxalate. So, this is not correct.
In option C:
The representation of both the ions is correct but the name of is chloride, not chlorate. So. this is not a correct option.
In option D:
The representation and names of both the ions are correct.
Hence, the correct option is D.
Answer: There are atoms of carbon in the given moles.
Explanation:
We are given 24.6 moles of carbon and we need to find the number of atoms.
According to mole concept:
1 mole of an element contains number of atoms.
So, 24.6 moles of carbon will contain atoms.
Hence, there are atoms of carbon in the 24.6 moles of carbon.