No. moles HCl= 24.4/1000 x 0.1= no.moles NaX in 20mL sample ( includes 0.2 g NaX)
Therefore, Molar mass NaX= mass/no.moles= 0.2 x 1000/ 24.4 x 0.01 = 81.97... (A)
Can someone do the working for it. I keep getting 122g
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2015 HSC: ENGLISH ADVANCED (90), EXTENSION 1 MATHS(100), EXTENSION 2 MATHS(94), CHEMISTRY(95), PHYSICS(94), SDD(96)
ATAR: 99.55
Bachelor of Advanced Science at UNSW: major in Physics and WAM of 90.917
No. moles HCl= 24.4/1000 x 0.1= no.moles NaX in 20mL sample ( includes 0.2 g NaX)
Therefore, Molar mass NaX= mass/no.moles= 0.2 x 1000/ 24.4 x 0.01 = 81.97... (A)
Let me know if the answer is A though?
yeah it is. Thanks mate
2015 HSC: ENGLISH ADVANCED (90), EXTENSION 1 MATHS(100), EXTENSION 2 MATHS(94), CHEMISTRY(95), PHYSICS(94), SDD(96)
ATAR: 99.55
Bachelor of Advanced Science at UNSW: major in Physics and WAM of 90.917
I got C. Can you explain what you did and why please?
Advanced Science & Computer Science - UNSW
"Give a man a fire, and he's warm for a day.
Set man on fire, and he's warm for the rest of his Life!"
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Advanced Science & Computer Science - UNSW
"Give a man a fire, and he's warm for a day.
Set man on fire, and he's warm for the rest of his Life!"
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