Yecim# 200gr k2co3 va 257.6gr al2 (so4)3 eritmala | Kɪᴍʏᴏ || ʙɪᴏʟᴏɢɪʏᴀ N1

Yecim#

200gr k2co3 va 257.6gr al2 (so4)3 eritmalari aralshtrildi


3k2co3+al2(so4)3----3k2so4+2al (oh)3+3co2

Bunda 2al (oh)3 cho'kma va CO2 gaz chiqqadi


K ionlari konsentratsiyasi 2marta kamaydi degani

X------200
2x-----400 gr eritma bo'ladi deb chunsak boladi

200+257.6=457.6

457.6-400=57.6gr

57.6gr cho'kma va chiqqan gaz massasi

156x+132x= 57.6
x=0.2

0.2mol al2 (so4)3

0.2×3=0.6 mol k2co3 reaksiyaga kirishgan

0.6----2
0.9----3

Dastlabki eritmalarda 0.9mol k2co3 va 0.2 mol al2 (so4)3 bolgan

Javob:B

Do'stlarga ham tarqating

@Kimyo_Biologiya_kanal