suv + tuz= eritma (noma’lum konsentratsiyali)-1
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2 1. suv + tuz= eritma (noma’lum konsentratsiyali)-1 1. 380 ml suvda 20 g mis sulfat erigan bo’lsa, erigan moddaning massa ulushini hisoblang? a) 2 b) 10 c) 20 d) 5 2. 15 g moddani 135 g suvda eritib olingan eritmaning kontsentratsiyasi (%) qanday bo’ladi? a) 13 b) 24 c) 10 d) 19 3. 180 g suvda 90 g modda erishidan hosil bo'lgan eritmaning massa ulushini aniqlang? a) 0,36 b) 0,38 c) 0,33 d) 0,30 4. 280 ml suvda 28 g osh tuzi eritildi. osh tuzining eritmasidagi massa ulushini (%) toping? a) 4 b) 5 c) 6 d) 9 5. 120 ml suvda 14,8 g magniy nitrat eritildi. eritmadagi magniy nitratning massa ulushini (%) toping? a) 7 b) 8 c) …
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