What is the empirical formula of the compound
A chemist wanting to determine the molecular formula of pseudolaric acid A burned 1 g of the compound in an elemental analyzer. The products of the combustion were 2.492 g of CO2 and 0.6495 g of H2O. What is the empirical formula of the compound?
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A charge q1 is inside a spherical surface ( although not necessarily at the exact center of the sphere). A second charge q2 sits just outside the surface. Choose whether the following statements are true or false.
The coefficient of static friction between the table and the block is 0.460 and the coefficient of kinetic friction between the table and the block is 0.320. Sand is gradually added to the bucket until the system just begins to move.
A golf ball is struck off a tee (negligible height and air resistance) with initial velocity of 50 meters per second at an angle of 30 degrees above the horizontal. What will be the vertical component of velocity after 2.5 seconds?
Define green reveloution and gene reveloution, explain concisely how they differ in their approach to the improvement of crop production.
A sealed-end water manometer attached to an air duct reads 1598 cm. An open-end water manometer attached to the same duct reads 556.2 cm. What is the absolute pressure in the duct (atm)?
At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 287 N/C. At a distance r2 from the charge, the field has a magnitude of 128 N/C. Find the ratio of the distances.
Pilots can be tested for stresses of flying high speed jets in a whirling "human centrifuge," which takes 1.0 minute to turn through 20 complete revolutions before reacting its final speed a) what was its angular acceleration (assumed constant) an
What are the ways in which fertilizers can be applied to alleviate nutrient deficiencies in cropping systems identifying advantages and disadvantages of each method with respect to its suitability for the fertilizer being used.
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