房水充满前房和后房,含量为()
A: 0.10~0.12ml
B: 0.06~0.10ml
C: 0.20~0.40ml
D: 0.12~0.15ml
E: 0.15~0.30ml
A: 0.10~0.12ml
B: 0.06~0.10ml
C: 0.20~0.40ml
D: 0.12~0.15ml
E: 0.15~0.30ml
举一反三
- (单选题)房水充满前房和后房,全量约为。 A: 0.10~0.12ml B: 0.06~0.10ml C: 0.20~0.40ml D: 0.12~0.15ml E: 0.15~0.30ml
- Which of the following mixtures can work as a buffer and has the strongest buffer capacity? A: 200 mL of 0.20 mol/L [img=77x22]1803a221d13ee32.png[/img] and 100 mL of 0.20 mol/L NaOH B: 200 mL of 0.10 mol/L [img=77x22]1803a221d13ee32.png[/img] and 200 mL of 0.10 mol/L NaOH C: 200 mL of 0.10 mol/L [img=77x22]1803a221d13ee32.png[/img] and 100 mL of 0.10 mol/L NaOH D: 200 mL of 0.10 mol/L [img=36x22]1803a221e9e372e.png[/img] and 200 mL of 0.10 mol/L HC1
- All of the following mixtures can function as a buffer solution, except A: equal volumes of 0.10 mol/L HAc and 0.10 mol/L NaAc B: 100 mL of 0.10 mol/L HAc and 50 mL of 0.10 mol/L NaOH C: 100 mL of 0.10 mol/L HAc and 100 mL of 0.10 mol/L NaOH D: 50 mL of 0.10 mol/L NH3 and 25 mL of 0.10 mol/L HC1
- 下列各组混合溶液中,不具有缓冲作用的是() A: 100 mL 0.10 mol·L-1 KH2PO4溶液和50<br/>mL 0.10mol·L-1 NaOH溶液 B: 100 mL 0.10 mol·L-1 HAc溶液和50<br/>mL 0.10mol·L-1 NaOH溶液 C: 100 mL 0.10 mol·L-1 NaH2PO4溶液和50<br/>mL 0.20mol·L-1 NaOH溶液 D: 100 mL 0.10 mol·L-1 KH2PO4溶液和50<br/>mL 0.10mol·L-1 HCl溶液
- 某标准试样为10μg/mL,吸光度为0.12,若被测试样吸光度为0.48,则其浓度为:( ) A: 5μg/mL B: 10μg/mL C: 20μg/mL D: 40μg/mL