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A cube of osmium metal 1.500 cm on a side has a mass of 76.31 g at 25°C. What is the density in g/cm3 at this temperature? (b) The density of titanium metal is 4.51 g/cm3 at 25 degrees C. What mass of titanium displaces 125.0 mL of water at 25 degrees C? (c) The density of benzene at 15 degrees C is 0.8787 g/mL. Calculate the mass of 0.1500 L of benzene at this temperature.
An empty aerosol can at 25 degree celcius still contains gas at 1.00 atmosphere pressure. If an empty can is thrown into a 488.2 degree celcius fire, what is is the final pressur in the heated can.
Determine the number of valence electrons for each of the following atoms. Enter each answer as a numeral. For example, if an atom has two valence electrons, enter the numeral 2. B ,H ,Kr ,Si
How many milliliters of 0.123 M H2SO4 are needed to neutralize 0.200 g of NaOH
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
50.0 mL of a 1.70 M solution is diluted to a volume of 248 mL. A 124-mL portion of that solution is diluted using 185 mL of water. What is the final concentration
A cumbustion analysis was carried out on 1.621g of newly synthesize compound which was known to contain only carbon,hydrogen and oxygen.
A 27.0-g sample of water at 250. K is mixed with 47.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Calculate the spring constant of this silicone band including units. I know Hooke's law is F=-KX, where F is force, -K is the consent of the spring which I need to find and X is the displacement from relaxed position, but i'm giving the oscillatio..
Calculate the radius of a Au (gold) atom if Au atom has a face-centered unit cell ? it is given that its density = 19.32 g/cm 3 .?
For example if your compound is water and you have the information the boiling point, Tb=(99.98 C), the enthalpy of vaporization= (40.65 kJ/mol) and the molar mass= 18.02g/mol.
What is the hydronium ion concentration in an aqueous hydrochloric acid solution that has a pOH of 11.540 ?
the solubility of a salt in water represents the amount of solute necessary to reach a state of equilibrium between saturated solution and undissolved
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