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What is the direction of the acceleration vector of a person on the spinning Earth if the person is
(a) at the equator?
(b) at some other latitude?
(c) at the poles? For projectile motion, what quantities are constant? (Neglect air resistance.)
Using resonance structures, show why the NH2 group of aniline is an ortho/para director in electrophilic aromatic substitution
Polonium metal crystallizes in a lattice which contains only one Po atom per cubic unit cell. The radius of polonium atom is 1.67 A. Calculate the density of the polonium metal
An unknown metal M reacts with Oxygen to give the metal oxide MO2. Identify the metal based on the following information.
Question- Calculate the pH at the equivalence point for the titration of 0.180 M methylamine (CH3NH2) with 0.180 M HCl. The Kb of methylamine is 5.0× 10-4.
A container (8.65-L ) holds two gases mixture at 31 °C. The partial pressures of gas X and gas Y, respectively, are 0.206 atm and 0.867 atm. If 0.200 mol a third gas is added with no change in temperature or volume determine the total pressure be..
A 25.00 ml aliquot of a nitric acid solution of unknown concentration is pipette into a 125ml Erlenmeyer flask and 2 drops of phenolphthalein are added.
discribe how to prepare this solutions show all work and calcualtion? a) 50mL of asolution containing 0.15M malonic acid [CH2(COOH)2 plus 0.02 manganese sulfate [ MnSO4] b) 100 mL of 0.08M sulfuric acid
a solid block of exactly 100.0 cm cubed has a mass of 153.6g. Determine its density.Will the block sink or float on water.
Determine the minimum wavelength of light necessary to overcome the work function of the following metals
When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of Cr(OH)3(s) will be: Cr(OH)3(s) + Cl2O7(aq) --> CrO42-(aq) + ClO2-(aq)
hat mass of KOH, in grams, is required to prepare 125 mL of 2.35 M KOH solution? How many grams of NaOH will react completely with 187 ml of 0.430m HCl?
Draw the neutral major organic product pentanoic anhydride & 2 equivalents of dimethyl amine [HN(CH3)2] given that one equivalent of amine acts as the nucleophile
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