To deliver 80 mL of fluid over 16 minutes, what burette pump setting (mL/h) is required?

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Multiple Choice

To deliver 80 mL of fluid over 16 minutes, what burette pump setting (mL/h) is required?

Explanation:
To deliver a specific volume in a set time, use the flow rate equal to volume divided by time, making sure time is in hours when the rate is in mL per hour. Convert 16 minutes to hours: 16/60 = 0.2667 hours. Then the required rate is 80 mL ÷ 0.2667 h = 300 mL/h. Setting the pump to 300 mL/h will deliver 300 mL/h × 0.2667 h ≈ 80 mL in 16 minutes. Higher or lower rates would finish sooner or later, respectively, than the 16-minute window.

To deliver a specific volume in a set time, use the flow rate equal to volume divided by time, making sure time is in hours when the rate is in mL per hour. Convert 16 minutes to hours: 16/60 = 0.2667 hours. Then the required rate is 80 mL ÷ 0.2667 h = 300 mL/h. Setting the pump to 300 mL/h will deliver 300 mL/h × 0.2667 h ≈ 80 mL in 16 minutes. Higher or lower rates would finish sooner or later, respectively, than the 16-minute window.

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