1-Nazorat ishi

To’ldiruvchi savollar


------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------To’ldiruvchi so’rov bali ________


II variant
1 .4,6g natriy mol miqdori suv bilan reaksiyaga kirishganda qancha hajm (n.sh.da)vodorod
ajralib chiqadi?
2. 25⁰C da to’yingan 220 g eritmada 20 g tuz bo’lsa, shu tuzning eruvchanlik koeffitsiyentini
aniqlang.
3. 150 g 15% li osh tuzining eritmasiga 200 g suv qo’shildi.Hosil bo’lgan eritmaning
konsentratsiyasi (%) nechaga teng?
4..2 litr natriy gidrooksid NaOH eritmasida 40g NaOH bor. SHu eritmaning molar
konsentratsiyasini toping.
Masalalarni yechilishi_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Nazorat ishining bali _________