Answer:
the first orbit contains a maximum of 2 electron
The second orbit contains a maximum of 8
Answer:
option A
Explanation:
Atomic number of Nitrogen (N) = 7
So, no. of protons and electrons = 7
Then,
Answer:
Explanation:
Hello there!
In this case, according to the given chemical reaction:
It turns out possible for us to realize about the 7:8 mole ratio of O2 to CO, and therefore, the theoretical yield of the latter is calculated via stoichiometry:
Finally, the percent yield is calculated by dividing the actual yield, 36.5 g by the just computed theoretical one:
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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
Answer: The heat absorbed by the water is 52.823 J.
Explanation:
Given: Mass of metal = 5.05 g
Specific heat of water = 4.184
Initial temperature =
Final temperature =
Formula used to calculate heat absorbed is as follows.
where,
q = heat
m = mass of substance
= initial temperature
= final temperature
Substitute the values into above formula as follows.
Thus, we can conclude that heat absorbed by the water is 52.823 J.