Answer:
Explanation:
so u can work out the amount of moles of S8 by using
moles=mass/mr
=16/32.1=0.498moles
then use the molar ratio of
S : Fe
1:1 so the moles of Fe is the same 0.498
The use the equation
mass = mr x moles
=55.8 x 0.498
=27.78
so 27.8 g
hope this make sense :)
<span>1 mol of N2 is 28 gms, thus, 2.93mol is 84 gms.
According to the equation-
N (2 + 3H (2) = 2NH(3)
28gms (1mol) of N2 produces 34gms of NH3
so, 84gms of N2 will produce:
28gms of N2----->34gms of NH3
84gms of N2-----> 28/84 = 34 / x
x= (34*84) / 28
Answer: 102gms</span>
A buffer system usually will need a weak acid, like H2CO3, which is carbonic acid, and a strong base, and the only compound that could figure a fairly strong base among the options given is Na2CO3. NH3 and NaHCO3 are weak bases and HF is a strong acid. Therefore the best answer will be letter A
<em>it is given as as under: :
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