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If a 4.86g of solid carbon dioxide was placed into an evacuated 2 L container, sealed, and then heated until it completely changed to a gas with a final temperature of 75 degrees calcium, what would be the pressure?
Gold has a face-centered cubic structure and has a density of 19.3 g/cm3. What is its atomic radius
The enthalpy of hydration associated with anhydrous LiI forming LiI?2H2O is -45.53 kJ/mol. The enthalpy of solution for LiI?2H2O is -14.77 kJ/mol. What is the enthalpy of solution for LiI
Draw the major organic product from reaction of 1-butyne with BH3 in THF, then H2O2, OH-. If no reaction occurs, writE ethane, CH3CH3.
the resulting solution exerts an osmotic pressure of 829 torr. what is the molar concentration of the solution? how many moles of solute are in the solution? what is the molar mass of the solute?
If a buffer solution is 0.220 M in a weak acid (Ka = 8.5 × 10-5) and 0.550 M in its conjugate base, what is the pH
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
A 890 mL sample of NO2 gas is at STP. If the volume changes to 644 mL and the temperature changes to 20ºC, what will be the new pressure in atmospheres?
If 24g Mg is used and the percentage yield is 95%, how many grams of magnesium hydroxide should be recovered?
A sample of vanadium haveing 5.67 grams of mass upon heating combined with oxegen of 4.45gramsto make vanadium oxide. Determine the emperical formula for this compound?
Several significant signals have been identified on the spectrum. Assign these signals to corresponding functional groups in the molecule of aspirin
draw electron flow arrows and complete the lewis structures for the reaction that occurs between an alkene and hydrogen
Calculate the potential developed bya voltaic cell using the following reaction if all dissolved species
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