The particles can move around each other because they do not have as strong bonds as solids do.
The correct answer to this question is this one:
use PV=nRT
we can convert it into P=(mRT/MV) then P=dRT/M
so at STP:
T= 25 celsius which equals 298.73 Kelvin
<span />d= 1.046 g/mL = 0.001046 g/L (we need to use litres in the ideal gas equation)
<span />R =0.08206 Latm/Kmol
<span />M= molar mass of C16H22O4, which is (12)16+(1)22+(16)4 = 278 g/mol
<span>so plug this into: P=dRT/M
once you found the pressure, P, you need to convert it into torr (because it will be in atm (atmospheres).. since 1 atm = 760 torr = 760 mm Hg
multiply P by 760 and you're done. You;ll have the pressure in torr </span>
Answer:
No. of atom =
no.of moles x avagardro's number xatomicity
= weight /molar mass x No x atomicity
=8.2/142 x6.02x10^23 x 4
=0.346 x 10^23(approximately)
Complete Question
You are given a solution containing a pair of enantiomers (A and B). Careful measurements show that the solution contains 98% A and 2% B. What is the enantiomeric excess?
Answer:
The value is
Explanation:
From the question we are told that
The percentage of enantiomer A is A = 98%
The percentage of enantiomer B is B = 2%
Generally the enantiomeric excess is mathematically represented as
=>
=>