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

Doniyor QO’SHAQOV	7	@Kimyo_organik_anorganik

40. 
    150 g suvda 50 g CuSO4*5H2O ni erishidan hosil bo’lgan eritmadagi tuzning massa ulushini toping?
    

A) 0.50 B) 0.80 C) 0.32 D) 0.16

41. 200 g 10% li natriy karbanat eritmasini tayyorlash uchun necha gr kristall soda Na2CO3*10H2O olish kerak?
A) 34 B) 44 C) 54 D) 64

42. 
    Massa ulushi 3% bo’lgan Na2CO3 ning 50 g eritmasini tayyorlash uchun necha gr kristallik soda olish kerak?
    

A) 3,70 B) 4,70 C) 4,50 D) 4,05

43. 
    100 g 2% li mis (II) sulfat eritmasini tayyorlash uchun kerak bo’lgan mis kuporosi
    

(CuSO4*5H2O) va suvning massasini toping.

A) 3,13	; 96,87	B) 13,8 ; 86,2
C) 14,5	; 85,5	D) 20,2 ; 79,8

44. 
    150g 5% li mis (II) sulfat eritmasini tayyorlash uchun kerak bo’lgan mis kuporosi
    

(CuSO4*5H2O) va suvning massasini toping.

A) 10 ;140	B) 13 ; 137
C) 12 ; 138	D) 14 ; 136

45. Kobalt (II) xloridning massa ulushi 15% bo’lgan eritmasini tayyorlash uchun 476 g CoCI2*6H2O kristallgidrat necha gr suvda eritilishi kerak?
A) 628 B) 958 C) 727 D) 1257

46. 
    Temir (II) sulfat tuzining 10% li eritmasini tayyorlash uchun 30 gr FeSO4*7H2O tuziga necha millilitr suv qo’shish kerak?
    

A) 141,2 B) 131,2 C) 133,2 D) 134.0

47. 
    Ruh sulfatning 8% li eritmasini tayyorlash uchun 57,4g ZnSO4*7H2O ga necha gramm suv qo’shish kerak?
    

A) 345 B) 218 C) 366 D) 380

48. 
    47,6 g CoCI2 *6H2O kristallgidrat suvda eritilib, kobalt (II) xloridning 13,15% li eritmasi hosil qilindi. Kristallgidrat qancha hajm suvda eritilgan?
    

A) 176,1 B) 150,0 C) 158,5 D) 168,5

49. 16% li 400 g temir (III) sulfat eritmasini

tayyorlash uchun temir kuporosi (Fe2(SO4)3*12H2O) va suvdan qanchadan (g) olish kerak?

A) 98,6;301,4	B) 301,4;98,6
C) 110,4;289,6	D) 50;350

50. 
    20% li 300 g rux sulfat eritmasini
    

tayyorlash uchun rux kuporosi (ZnSO4*6H2O) va suvdan qanchadan (g) olish kerak?

A) 200;100	B) 100;200
C) 150;150	D) 25;275

51. 30g kristall soda Na2CO3*10H2O dan foydalanib tayyorlangan 150g eritmadagi natriy karbanatning massa ulushini 2% gacha kamaytirish uchun eritmaga qancha gramm suv qo’shish kerak?
A) 253 B) 325 C)275 D) 407

52. 
    345g suvda 57,4 g ZnSO4*7H2O ning eritilishidan hosil bo’lgan eritmadagi tuzning massa ulushini 4% gacha kamaytirish uchun eritmaga qancha suv qo’shish kerak?
    

A) 400.5 B) 250.8 C) 397.6 D) 402.6

52. 
    105. 345g suvda 57,4 g ZnSO4*7H2O ning eritilishidan hosil bo’lgan eritmadagi tuzning massa ulushini 2% gacha kamaytirish uchun eritmaga qancha suv qo’shish kerak?
    

A) 1150.5 B) 1050.5 C) 1297.6 D) 805,2

54. 
    57.4 gr ruh sulfatning kristallgadrati ZnSO4*7H2O dan foydalanib tayyorlangan 402.4 g eritmadagi ruh sulfatning massa ulushini 5% gacha kamaytirish uchun eritmaga qancha suv qo’shish kerak?
    

A) 255.6 B) 241.6 C) 376.2 D) 237.6

54. 
    30g natriy karbanat kristallgidratidan Na2CO3*10H2O foydalanib tayyorlangan 200g eritmadagi natriy karbanatning massa ulushini 3% gacha kamaytirish uchun qancha suv qo’shish kerak?
    

A) 130 B) 155 C) 140 D) 171

56. 
    Massa ulushi 0,1 bo’lgan natriy karbonatning eritmasidan 300 g tayyorlash