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A metal (M) forms an oxide with the formula MO. If the oxide contains 63.97% O by mass, what is the identity of the metal. Express answer as a chemical symbol.
A 515- sample of unknown solution reacts completely with to form 20.1 . What was the concentration of the solution?
Calculate the amount of work in kilojoules (kj) needed to move an object that weighs 500 grams through a distance
Working with partition function and entropy what is the ratio of the number of particles in the J= 14 to the J=4 level at a temperature of 1900 K?
The dipole moment and the normal boiling point of acetaldehyde (CH3CHO) are 2.7 D and 293 K, respectively. The dipole moment and the normal boiling point of n-octane (C8H18) are 0 D and 298 K.
How many types of nonequivalent protons does the following compound contain
When a gas is collected by displacement of water,the gas often appears foggy as it is generated. what it means to say that a gas collected by this technique is saturated with water vapor.
How would this affect the calculated Ksp (for Ca(OH)2)? How would this affect the calculted molar solubility of Ca(OH)2
Suppose you wanted to make a pH=4.25buffer. What would be the best acid/base system: acetic acid/acetate or lactic acid/lactate? THe Ka of lactic acid is 8.32x10(exponent -4). Throughly explain your reasoning.
What is the positional entropy at absolute zero for two moles of CF3Cl?
health risk does each of the following classification represent Corrosive Carcinogen Teratogen Mutagen
To obtain the same antifreeze protection requires 76 of propylene glycol to replace each 62 of ethylene glycol. Calculate the mass of propylene glycol required to replace 7.00 of ethylene glycol.
It takes 49.0 to raise the temperature of an 11.8 piece of unknown metal from 13.0 to 24.5. What is the specific heat for the metal?
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