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85. Kristalgidrat formulasini aniqlashga oid.

1. 
   Uch valentli metal o’rta sulfat tuzi kristalgidratining 0,12 mol miqdorida elementlar atomlari jami soni 25,284 _* 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 20,8 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) Cr₂(SO₄)_{3 *} 6 H₂O B) Cr₂(SO₄)_{3 *} 12 H₂O
C) Al₂(SO₄)_{3 *} 12 H₂O D) Fe₂(SO₄)_{3 *} 8 H₂O

2. 
   Ikki valentli metal o’rta sulfat tuzi kristalgidratining 0,14 mol miqdorida elementlar atomlari jami soni 17,7 * 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 25,6 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) CaSO_{4 *} 2H₂O B) CaSO_{4 *} 5H₂O
C) CaSO_{4 *} 0,5H₂O D) CuSO_{4 *} 5H₂O

3. 
   2 valentli metal o’rta sulfat tuzi kristalgidratining 0,135 mol miqdorida elementlar atomlari jami soni 9,7524 _* 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 23,256 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) CaSO_{4 *} 5H₂O B) CuSO_{4 *} 5H₂O
C) CuSO_{4 *} 2H₂O D) CaSO_{4 *} 2H₂O

4. 
   Ikki valentli metal o’rta sulfat tuzi kristalgidratining 0,185 mol miqdorida elementlar atomlari jami soni 1,3875 * 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 27,6 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) CaSO_{4 *} 2H₂O B) CuSO_{4 *} 10H₂O
C) CuSO_{4 *} 12H₂O D) CaSO_{4 *} 0,5H₂O

5. 
   Bir valentli metal o’rta sulfat tuzi kristalgidratining 0,22 mol miqdorida elementlar atomlari jami soni 49 * 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 14,3 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) Na₂CO_{3 *} 10H₂O B) Na₂SO_{4 *} 10H₂O
C) Na₂CO_{3 *} 8H₂O D) Na₂CO_{3 *} 12H₂O

6. 
   Bir valentli metal o’rta karbonat tuzi kristalgidratining 0,235 mol miqdorida elementlar atomlari jami soni 50,93 * 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 16,084 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) Al₂(SO₄)_{3 *} 12H₂O B) Na₂CO_{3 *} 12H₂O
C) Na₂CO_{3 *} 10H₂O D) Na ₂SO_{4 *} 10H₂O

7. 
   Uch valentli metal o’rta sulfat tuzi kristalgidratining 0,38 mol miqdorida elementlar atomlari jami soni 121,2428 _* 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 9,68 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) Na₂CO_{3 *} 12H₂O B) Al₂(SO₄)_{3 *} 10H₂O
C) Na₂CO_{3 *} 5H₂O D) Al₂(SO₄)_{3 *} 12H₂O

8. 
   Ikki valentli metal o’rta xlorid tuzi kristalgidratining 0,115 mol miqdorida elementlar atomlari jami soni 14,5383 _* 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 18,265 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) CaCl_{2 *} 6H₂O B) CuCl_{2 *} 3H₂O
C) CuCl_{2 *} 2H₂O D) CaCl_{2 *} 3H₂O

9. 
   Ikki valentli metal o’rta xlorid tuzi kristalgidratining 0,218 mol miqdorida elementlar atomlari jami soni 11,81124 _* 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 37,427 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
   

A) CuCl_{2 *} 3H₂O B) CuCl_{2 *} 2H₂O
C) CuCl_{2 *} 5H₂O D) CaCl_{2 *} 2H₂O

10. 
    Ikki valentli metal o’rta xlorid tuzi kristalgidratining 0,43 mol miqdorida elementlar atomlari jami soni 54,36 _* 10²³ taga teng. Agar kristalgidratdagi metalning massa ulushi 24,8 % ga teng bo’lsa, kristalgidrat formulasini aniqlang.
    

A) CuCl_{2 *} 3H₂O B) CoCl_{2 *} 6H₂O
C) CuCl_{2 *} 5H₂O D) CaCl_{2 *} 2H₂O