1、 - 1 - 1. 0.1 mol NaHCO 3 A 0.2 mol Na +B 0.05 mol CO 3 2-C 6.02 10 23 O D 0.1 mol H 2. A 0.4 mol NH 3 B 4 5.4 mL C 10 g D 6.02 10 23 3.N A 0.3mol/L A 1L 0.3NA K+ B 1L 0.9NA C 2L K+ 1.2mol/L D 2L 0.6NA 4. 1.204 10 24 H 2 ( ) A 1 mol O 2 ( ) B 4 mol H C 16 g CH 4 H D N A H 2 SO 4 H 5. 6.4 g 6.02 10
2、 22 ( ) A 64 B 32 C 96 D 124 6 n A (N A ) ( ) A 22.4 L Cl 2 n A Cl 2 B 1 L 0.1 mol L 1 Na 2 SO 4 0.1n A Na C 1 mol H 2 1 mol Cl 2 n A HCl D 1 mol Ca Ca 2 2n A7. ( ) ( ) 8. 2 mol L 1 NaCl 950 mL NaCl ( ) A 950 mL,111.2 g B 500 mL,117 g C 1000 mL,117 g D 111.2 g 9. VLK 2 SO 4 Al 2 (SO 4 ) 3 , c(Al 3+
3、) 0.4mol/L,c(K + ) 0.2mol/L SO 4 2- A.0.2mol/L B.0.4mol/L C.0.8mol/L D.0.7mol/L 10. 0.1 mol/L Na 2 SO 4 300 mL 0.1 mol/L MgSO 4 200 mL 0.1 mol/L Al 2 (SO 4 ) 3 100 mL ( ) A 1 1 1 B 3 2 2 C 3 2 3 D 1 1 3 11.( ) X 2Y=R 2M R M 22 9 1.6 g X Y 4.4 g R Y M ( ) A 16 9 B 23 9 C 32 9 D 46 9 12.( ) a g b c g ( ) A. 22.4 b acN AL B. 22.4ab cN AL C. 22.4ac bN AL D. 22.4bc aN AL 1. 12.4 g Na 2 R Na 0.4 mol Na 2 R _ R _ R 1.6 g Na 2 R _ 2. 10.6 g Na 2 CO 3 1 L 1 Na 2 CO 3 _ Na - 2 - _ 2 NaCl Na 0.4 mol/L( ) NaCl _ Cl _ 3. mg Mg mol -1 NA 1 _mol 2 _ _ 3 _L 4 1L _ 5 VL _g mol -1
