Calculate the wight percent al in the original mixture
Calculate the Wight percent Al in the original mixture when solid residue weighing the 8.4448 g from an aluminum refining process was dissolved in the acid, treated with 8-hydroxyquinoline, an ignited to give Al2O3 (101.) weighing 0.8554g.
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Suppose you perform an acid-base titration, and the endpoint which is having 24.95 mL with an error of ±0.1 mL. Determine the relative uncertainty in the endpoint volume.
A turn-table consists of a moment of inertia of 1.2 kg*m and rotates at 300 rpm. When a kg blob of clay of 0.300 lands on the turn-table 6 cm from the center, then determine the new angular velocity of the system?
The 750 N painter finds that she can climb 2.75 m up the ladder measured all along its length, before it starts to slip. Find out the friction force and normal force which the floor applies on the ladder?
Determine minimum or maximum value of parabola f(x)=-x^2+8x-11 by first writing f(x) in form f(x)=a(x-h)^2+5. Ensure to say if your value is the maximum or minimum.
Find out the intensity level of the combined signal received all along the X-axis, at a distance of 2.00 m from the origin, if the three sources act concurrently. (Suppose for the velocity of sound the value V = 335 m/s)
Determine the number of grams of Carbon dioxide will be formed by burning 4.05moles of propane? Suppose the oxygen is the excess reagent in this reaction.
The object of specific gravity 2 weighs 100 N less when it is weighed while fully submerged in water than when it is weighed in air. Determine the real weight of the object?
The chemical potential energy of a typical apple is around 76 Calories. When all this energy could be transformed to gravitational potential energy, determine how high would you be lifted?
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