First write out the balanced equation. 3Cu+2Ag(NO3)3=2Ag+3Cu(NO3)2
Then convert copper from grams to moles
15 g*1 mol cu/63.54 g= 15/63.54 mol cu
Then use the mole ratio to convert Moles Cu to Moles Ag
15/63.54 moles Cu* 2 moles Ag/3 moles Cu
The final awnser is (15*2)/(63.54*3) moles Ag =0.157 moles Ag. If the question wants the answer in grams, convert from moles Ag to grams Ag.
0.157 moles Ag*107.87 g Ag/ mol Ag=16.98 g Ag
Answer:
Empirical evidence for a proposition is evidence, i.e. what supports or counters this proposition, that is constituted by or accessible to sense experience or experimental procedure. Empirical evidence is of central importance to the sciences and plays a role in various other fields, like epistemology and law.
Explanation:
thanks me later
According to Boltzmann reaction entropy difference between two states is given by ΔS and is equal to 5.76 .
According to Boltzmann Reaction:
S= kB lnW
Where,
W is number of Arrangements possible
Now ,
ΔS = S(final) - S(initial)
S(initial) = kBln1 (Since only one arrangement is possible)
= 0
Again,
S(final) = kBln2^n
Now,
As A-B can exist as A-B or B-A .
Hence, two arrangements are possible and since 1 mole of species .
Hence, 2^n
S(final) = N kB ln2
=R ln 2
= 8.314 ×2.303× log 2
Hence,
S(final) = 5.76
ΔS = 5.76 -0
=5.76
Thus, from the above conclusion we can say that, according to Boltzmann reaction entropy difference between two states is given by ΔS and is equal to 5.76 .
Learn more about Entropy here : brainly.com/question/17241209
#SPJ4
Usually, the group number of the element would tell you the amount of valence electrons. In an element, their needs to be a full octet in order for it to be stable (aka happy element). Octet means 8 valence electrons in its orbital.
The last one is the answer I think