A buffer solution with a ph reading of 850 was prepared by
A Buffer solution with a pH reading of 8.50 was prepared by mixing 0.25 mole acid(HA) and 0.05 mole NaOH in 500.0ml DI water.
Expected delivery within 24 Hours
By appropriate K, MB, and CB analysis, calculate system pH and the amount of CaCO3(s) remaining on establishment of EQ. Show all pertinent work except arithmetic. (Assume a constant liquid-phase volume of 1.0 L.)
A three-phase load is Y-connected. The load has a phase voltage of 139 V and a phase current of 49 A. Each phase of the load consumes 5.1 kW of power. (A) Sketch and label the load. Find (b) the line voltage, (c) the line current, and
the enthalpy change is 25.8 KJ. How many grams of H2 gas are produced? and d: How many KJ of heat are released when 50.9 g of CO gas reacts completely with H2 to form CH3 OH at constant pressure?
A motor operated from a 480 V(rms), 60 Hz source has an output of 800 hp. The motor is 89% efficient and has a power factor of 69.5% lagging. What is the electrical input power in watts of the motor
For computer chip of 10mm (length), 10 mm(width) is operated by power of 0.345 watt, which surrounded by coolant material of temp of 70 F. The Internal energy rate is 3.5J/sec and kinetic energy rate is -4.5J/sec.
the saturated liquid and vapor mixture at t=300c and quality of 75%.the mixture occupies a volume of 0.05 m^3 (a) find the specific volume in m^3/kg (hints: vf= 0.0014 vg=0.02167m^3/kg at t =300c) (b) find the mass of the mixture in kg.
In ploystyrene beaker , we mixed 30 mL of 0.1 M sodium acetate and 15 mL of 0.1 M hydrocloric acid. we measured the PH ( in PH meter ) it was 4.86 and then we added 5 mL of 0.1 M NaOH to this buffer.
For each of these three possible indicators, give an example of an analyte and a titrant which best suits its use. changes color when the solution is slightly acidic (methyl red-HCl and ammonia?)
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult