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The value of electronegativity for Magnesium = 1.2 and the value for Oxygen is 3.5. determine what type of bond is expected for a compound formed between Magnesium and Oxygen Based on these values,?
what is the average density of the sun in units of grams per cubic centimeter? The volume of a sphere is (4/3)?^3.
The simulated APT spectrum of a compound with the molecular formula C4H8 is shown below. Draw a structure that is consistent with this data.
a chemical reaction produced .311 g sample of gas which occupied 225 mL at 55 degrees C exerting a pressure of 86 mm Hg. what is the molar mass of the gas?
Calculate K for the reaction between glutamate and ammonia. (The standard free energy change for the reaction is +14.2 . Assume a temperature of 298 K.
The student uses poor lab practice by writing down the mass of his unknown sample on a piece of paper towel and then copies down the value incorrectly onto his data page. The actual mass of the sample was 0.2145g. He mistakenly wrote down 0.1245g,..
Weight and volume measurements on a sample of pure cadmium showed its density to be 521 lb/ft3 is this a 3.5% error?
What concentration of CH3NH3Br is necessary to prepare a pH = 10.00 buffer solution assuming the base concentration is 0.69 M (Kb for CH3NH2 = 4.4 x 10-4). For this problem, include the correct units of M.
what fraction of the radioactivity will appear as CO2 during the first 2 turns of the TCA cycle? Draw the structure of OAA and indicate its labeling pattern after the second turn of the TCA cycle.
Calorimetry is a method used to measure changes in enthalpy, or heat, that occur during chemical processes. Two common calorimeters are constant-pressure calorimeters and constant-volume (or "bomb") calorimeters.
Calculate the mass of ethylene glycol, C2H6O2 , that must be added to 1.000 kg of ethanol, C2H5OH, to reduce its vapor pressure by 13.2 torr at 35°C. The vapour pressure of pure ethanol at 35°C is 1.00 x 10 -2 torr.
Calculate the molar solubility of Mg(OII)_2 in a solution with a pH of 12.8 (K_op of Mg(OH)^2 is 1.2 * 10^-11
NaOH + CO2 -→ Na2CO3 + H2O . If the average human body discharges 536 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft?
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