A.此氨水中NH3的物质的量浓度近似为0.224mol•L-1 |
B.此氨水中NH3的物质的量浓度近似为10mol•L-1 |
C.此氨水中NH3的物质的量浓度近似为8.55mol•L-1 |
D.此氨水中NH3的质量分数为0.17 |
28L |
22.4L/mol |
125g+21.25g |
1g/mL |
1.25mol |
0.14625L |
21.25g |
125g+21.25g |
A.200mL,0.5mol•L-1的FeCl3溶液 |
B.100mL,0.5mol•L-1的MgCl2溶液 |
C.150mL,1mol•L-1的NaCl溶液 |
D.50mL,0.5mol•L-1的CuCl2溶液 |
A.200mL0.25mol/LNaCl溶液 |
B.200mL1mol/LNaCl溶液 |
C.100mL 0.5mol/LNaOH溶液 |
D.100mL1mol/LNa2CO3溶液 |
© 2017-2019 超级试练试题库,All Rights Reserved.