Answer:
2 moles for the first 2 questions and 100g of water
Explanation:
PV = nRT
Pressure times volume = number of moles times ideal gas constant times temperature
50mL = .05L
1 atm (.05) = n (.0821) (273)
.05 = n (22.4133)
.022 = n (number of moles)
6.022E23 molecules = 1 mole
.022 x 6.022E23 = 1.325E23 molecules
According to boiling point elevation equation:
Δ T = i Kb m
when ΔT (change in boiling point) = 7.10 C°
and i (van't Hoff factor)= 1
and Kb = 0.520
so, by substitution:
7.10 = 1*0.520 *m
m = 7.1 / 0.52 = 13.65 m
The empirical formula of arginine is C3H7N2O2.
<h3>What is the empirical formula of arginine?</h3>
Now we know that the empirical formula is the formula that shows the ratio of the atoms present in the compound.
Now we know that;
C - 41.368/12 H - 8.101/1 N - 32.162/14 O - 18.369/16
C - 3.445 H - 8.101 N - 2.297 O - 1.148
Dividing through by the lowest ratio;
C - 3.445/1.148 H - 8.101/1.148 N - 2.297/1.148 O - 1.148/1.148
C - 3 H - 7 N - 2 O - 2
C3H7N2O2
Learn more about arginine:brainly.com/question/13589467
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