plan You are to design a rectangular primary clarifier for a domestic to settle 900 m³/day with an overflow rate of 25 m³/m²-day. The tank is to be 3.2 m deep and 4.0 m wide. How long should it be and what detention time would it have? Calculate the weir loading rate to see whether it is overloaded if only one end weir is used.

DATA AND CALCULATIONS   Reactant: Na2CO3   TEST TUBE A, B, C                                              TRIAL A       TRIAL B       TRIAL C   Mass of test tube and boiling chip 504g__      17.969g_      17.800g_        Mass of tube with Na2CO3 861g         18.314g         18.186g Net mass of reactant used __________    __________    __________ Number of moles of reactant __________    __________    __________     Mass of tube with NaCl product 882g         18.332g___    18.184g___ Mass after repeated heating                          18.879g         18.333g____  18.186g___ Net mass of NaCl product __________    __________    __________   Number of moles of NaCl __________    __________    __________                                                                                 Ratio of moles NaCl to moles of reactant __________    __________    __________   Average mole-to-mole ratio from your trials _______________

1 match Begins with : Q Gently insert the c Done Messages Courses Help Spring 2022 CHEM 106 Mengting Wu ▼ (Student - section: C54) Logou Main Menu Contents Grades Groups Course Timer Notes Evaluate Feedback Print Inf Follow proper technique when using a pipet: False A volumetric pipet should 'not be "blown out" to eject all liquid at the tip. Volumetric pipets are calibrated in a manner that takes into account the solution which remains at the tip. True Using the pipettor, you should turn the wheel on the pipette, draw up the solution until the meniscus is several centimeters above the calibration line, then quickly remove the pipette and put your thumb over the open hole of the pipet. True When the bottom of the meniscus coincides with the calibration mark, your pipet contains a precisely measured volume. True e Do not force the pipet into the pipettor, be gentle. Excessive force may cause the pipet to break and could potentially cut you while trying to insert or remove the pipet.…

Question 1. Find the force (in kN) required to hold the plug in place at the exit of the water pipe. The flow rate is 4.1m3/s and the upstream pressure is 3.5MPa. F 0.25 m 0.2 m

What is the control variable, independent variable, dependent variable for the filtration process.