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 _________