Kiruvchilar uchun kimyo fanidan

10. Kristalgidrat tarkibidagi “n” qiymatini topish.
1. Taxir tuz deb ataluvchi MgSO₄ ^. n H₂O modda tarkibida S - 13% bo’lsa, “n” qiymatini toping.

A) 5 B) 6 C) 7 D) 8

2. Bura deb ataluvchi Na₂B₄O₇ ^. n H₂O modda tarkibida Na-12.04% bo’lsa, “n” qiymatini toping.

A) 12 B) 8 C) 10 D) 11

3. Pretsipitat deb ataluvchi CaHPO₄ ^. n H₂O modda tarkibida P-18.02% bo’lsa, “n” qiymatini toping.

A) 1 B) 2 C) 3 D) 4

4. Mis kuporosi deb ataluvchi CuSO₄ ^. n H₂O modda tarkibida S-12.8% bo’lsa, “n” qiymatini toping.

A) 6 B) 5 C) 4 D) 8

5. Kristall soda deb ataluvchi Na₂CO₃ ^. n H₂O modda tarkibida Na va C massa ulushi 20.28% bo’lsa, “n” qiymatini toping.

A) 10 B) 9 C) 11 D) 5

6. Gips deb ataluvchi CaSO₄ ^. n H₂O modda tarkibida Ca-23.25% bo’lsa, “n” qiymatini toping.

A) 2 B) 0,5 C) 1 D) 5

7. Albaster deb ataluvchi CaSO₄ ^. n H₂O modda tarkibida S va Ca massa ulushi 42.76% bo’lsa, “n” qiymatini toping.

A) 0,5 B) 1 C) 5 D) 2

8. MnSO₄ ^. n H₂O modda tarkibida S-14.35% bo’lsa, “n” qiymatini toping.

A) 1 B) 2 C) 3 D) 4

9. Temir kuporosi deb ataluvchi FeSO₄ ^. n H₂O modda tarkibida Fe va S ning massa ulushi 31.65 % bo’lsa, “n” qiymatini toping.

A) 5 B) 6 C) 8 D) 7

10. Al(NO₃)₃ ^. n H₂O modda tarkibida N-15.73% bo’lsa, “n” qiymatini toping.

A) 1 B) 2 C) 3 D) 4