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Category > Engineering Posted 27 May 2017 My Price 4.00

6.02 × 1020 molecules of urea are present in 100 mL of its solution

6.02 × 1020 molecules of urea are present in 100 mL of its solution. The concentration of solution is [NEET 2013]

A 0.02 M
B 0.01 M
C 0.001 M
D 0.1 M
Question 2
How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO3? The concentrated acid is 70% HNO3. [NEET 2013]A45.0 g conc. HNO3B90.0 g conc. HNO3C70.0 g conc. HNO3D54.0 g conc. HNO3
 
 

 
 

Answers

Alpha Geek
(8)
Status NEW Posted 27 May 2017 02:05 PM My Price 4.00

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Attachments

file 1495898259-Answer.docx preview (165 words )
6-----------.02----------- ×----------- 10-----------20Â----------- mo-----------lec-----------ule-----------s o-----------f u-----------rea----------- ar-----------e p-----------res-----------ent----------- in----------- 10-----------0 m-----------L o-----------f i-----------ts -----------sol-----------uti-----------on.----------- Th-----------e c-----------onc-----------ent-----------rat-----------ion----------- of----------- so-----------lut-----------ion----------- is----------- [N-----------EET----------- 20-----------13]----------- A----------- 0.-----------02 -----------M -----------B 0-----------.01----------- M ----------- C -----------0.0-----------01 -----------M -----------D 0-----------.1 -----------M -----------Que-----------sti-----------on -----------2 -----------How----------- ma-----------ny -----------gra-----------ms -----------of -----------con-----------cen-----------tra-----------ted----------- ni-----------tri-----------c a-----------cid----------- so-----------lut-----------ion----------- sh-----------oul-----------d b-----------e u-----------sed----------- to----------- pr-----------epa-----------re -----------250----------- mL----------- of----------- 2.-----------0 M----------- HN-----------O3?----------- Th-----------e c-----------onc-----------ent-----------rat-----------ed -----------aci-----------d i-----------s 7-----------0% -----------HNO-----------3. -----------[NE-----------ET -----------201-----------3]A-----------45.-----------0 g----------- co-----------nc.----------- HN-----------O3B-----------90.-----------0 g----------- co-----------nc.----------- HN-----------O3C-----------70.-----------0 g----------- co-----------nc.----------- HN-----------O3D-----------54.-----------0 g----------- co-----------nc.----------- HN-----------O3 ----------- Ma-----------y 1-----------8 2-----------015----------- 01-----------:31----------- AM----------- A-----------nsw-----------er -----------A ------------ 45----------- g -----------con-----------c
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