Doniyor qo’shaqov new eritma-1 Erituvchi Eritma Erigan modda Andijon-2019 Dispers sistemalar

Doniyor QO’SHAQOV	10	@Kimyo_organik_anorganik

500 g eritmasini hosil qilish uchun har qaysi eritmadan qanday massada (g) kerak

bo’ladi?
A) 400 ; 100	B) 420 ; 80
C) 350 ; 150	D) 380 ; 120

91. 
    Osh tuzining 20% li eritmasidan 600 g tayyorlash uchun uning 10% li va 40% li eritmalaridan qanchadan (g) olish kerak?
    

A) 400;200	B) 300;300
C) 200;400	D) 150;450

92. 
    Osh tuzining 12% li eritmasidan 500 g tayyorlash uchun uning 6% li va 18% li eritmalaridan qanchadan (g) olish kerak?
    

A) 200;300 B) 250;250 C) 300;200 D) 150;350

92. 
    10% li 500 g BaCl2 eritmasining konsentratsiyasini 25% ga yetkazish uchun necha g BaCl2 kerak bo’ladi?
    

A) 50 B) 125 C) 100 D) 150

94. 
    Konsentratsiyasi 25% bo’lgan eritma tayyorlash uchun bariy xloridning 300 g 15% li eritmasiga qanday massadagi (g) bariy xloriddan qancha (g) qo’shish kerak?
    

A) 32 B) 40 C) 25 D) 20

95. 
    16% li 200 g mis (II) sulfat eritmasini tayyorlash uchun mis kuporosi va suvdan qanchadan (g) olish kerak?
    

A) 50;150 B) 100;100 C) 25,175 D) 150;20

95. 
    8% li 600 g mis (II) sulfat eritmasini tayyorlash uchun mis kuporosi va suvdan qanchadan (g) olish kerak?
    

A) 50;550	B) 75;525
C) 525;75	D) 400;200

97. 
    Natriy gidroksidning 40% li 200 ml (p=1,43 g/ml) va 10% li 300 ml eritmalari
    

(p=1,1 g/ml) aralashtirildi. Xosil bo’lgan eritmaning konsentratsiyasini (%) toping.

A) 26 B) 16 C) 24 D) 36

98. 
    355 ml 30% li KOH eritmasiga (p=1,282 g/ml) 0,5 l 10% li KOH eritmasi (p=1,09 g/ml)qo’yilganda hosil bo’lgan eritmadagi
    

KOH ning massa ulushi (%) nechaga teng bo’ladi?

A) 16,7 B) 19,1 C) 23,4 D) 32,5

99. 
    Nitrat kislotaning 10 ml 10% li eritmasi (p=1,056 g/ml) bilan 100 ml 30% lieritmasi
    

(p=1,184 g/ml) o’zaro aralashtirilishidan hosil bo’lgan yangi eritmada kislotaning foiz konsentratsiyasi qancha bo’ladi?

A) 22,46 B) 26,32 C) 28,36 D) 32,15

100. 
     16% li mis (II) sulfat eritmasidan 600 g tayyorlash uchun mis kuporosi CuSO4*5H2O va 6% li mis (II) sulfat eritmasidan qanday miqdorda (g) olinishi zarur?
     

A) 200;400	B) 300;300
C) 496,5;103,5	D) 180,5;419,5

101. 23 g natriy metalining 200g suvda erishi

natijasida xosi bo`lgan eritmadagi NaOH`ning kontsentratsiyasini (%) toping.

A) 18 B) 21 C) 16 D) 14

102. 
     39g natriy metalining 300g suvda erishi natijasida hosil bo`lgan eritmadagi NaOH`ning kontsentratsiyasini (%) toping.
     

A) 10 B) 15 C) 20 D) 25

103. 
     46g natriy metalining 400g suvda erishi natijasida hosil bo`lgan eritmadagi NaOH`ning kontsentratsiyasini (%) toping.
     

A) 12 B) 16 C) 20 D) 18

104. 
     23g natriy 78 g suv bilan reaktsiyaga kirishganda hosil bo`lgan natriy ishqor eritmasidagi natriy gidroksidning massa ulushini (%) toping.
     

A) 36 B) 23 C) 43 D) 40

105. 
     97,5g kaliyning 159,5 ml suv bilan reaktsiyasi natijasida hosil bo`lgan eritmadagi kaliy gidroksidning massa ulushini (%) hisoblang.
     

A) 55,0 B) 48,4 C) 58 D) 38

106. 
     4 g kaliy gidrid 100 ml suvda eritildi.
     

Hosil bo`lgan ishqorning foiz kontsentratsiyasini aniqlang.

A) 2,39 B) 3,30 C) 4,26 D) 5,39

107. 
     9,2g natriy metali bilan 100 g suvning o`zaro ta’siridai hosil bo`lgan ishqorning massa ulushini (%) hisoblang.
     

A) 15,65 B) 11,27 C) 14,7 D) 20,36