Diethylamine c2h52nh is a weak base pkb316 at 25oc what is
Diethylamine, (C2H5)2NH, is a weak base (pKb=3.16 at 25oC). What is the pH of 0.155 mol/L (C2H5)2NH(aq) at 25oC? Give your answer accurate to two decimal places.
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What is the net upward force on an airplane wing of area 20.0 m2 if the speed of air flow is 221 m/s across the top of the wing and 206 m/s across the bottom
Given that the ionizable H atoms are associated with carboxyl groups, draw a plausible structure for maleic acid.
Constructing the foundation causes changes in the levels of vertical stress at all points in the soil. One such point lies at the centre of the footing plan and is at a depth of 10m. Determine the increment of vertical stress there.
A weather emergency siren is mounted on a tower, 177 meters above the ground. On one hand, you would like to make the siren very loud so that it will warn as many people as possible. what is the maximum power that the siren can put out
During the recent camping trip, a curious junior engineering student (like yourself) noticed that water is being discharged from a high reservoir to a stream in the valley through a 0.3 m diameter plastic pipe.
A sedimentation basin is used to remove suspended solids from a wastewater. The rate of flow of wastewater into the tank is 10 L/s, and the influent concentration of suspended solids is 200 mg/L.
Use the Gibbs phase rule to find the degrees of freedom for the following systems at equilibrium: a. Liquid water in equilibrium with water vapor. b. Liquid water in equilibrium with humid air.
A planet with mass 7 x 1024 kg orbits a sun with a period of 1 Earth's years. The speed of the planet around that sun is constant and |v|=49600 m/s
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As a general rule the of a virgin is tight and the rugosities are sharp and prominent. Insertion of a finger or instrument may show certain degree or resistance
What would be a measurable goal for Fluid Volume Deficit r/t insufficient fluid intake AEB dry mucus membranes and what would be four nursing intervention
The nose is pinched, the temple hollow, eyes sunken, ears cold, lips relaxed and skin livid. The appearance of the face is indicative of approaching death
A child will begin taking methylphenidate [Ritalin] for attention-deficit/hyperactivity disorder. Which of the following parameters is likely
A client reports experiencing 4 to 6 episodes of diarrhea each day. What should the nurse recommend to ensure for this client's nutritional status?
A nurse is obtaining a health history from an older adult patient in an outpatient clinic. The patient reports chronic difficulty falling asleep
A client is slowly adjusting to their diet changes in response to a recent diagnosis of irritable bowel syndrome (IBS);