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a 250.0ml sample of air at 100.0k is warmed to 200.0k at constant pressure. what is the volume of the air sample at the new temperature?
How many milliliters of 0.200 M NaOH will be required to titrate 7 mL of 0.479 M H2SO4
A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.12 M NH3. What is the resulting pH?(kB FOR NH3= 1.8 x 10^-5)
Isra fills two identical balloons at identical temperatures. She fills one with O2 gas and the other with O3 gas. Which balloon will deflate faster? Why?
Compute delta Hf for CaC2 : CaC2 + 2H2O-->Ca(OH)2 +C2H2 From the given enthalpy of reaction data as water(H2O) =(2*-285.83),calcium hydroxide Ca(OH)2=(-986.2) , AcetyleneC2H2 =(226.77)?
Determine how many moles of Trisodium phosphate would be required to react with 4.0mol of Silver Nitrate?
A bottle of wine contains 14.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality.
What is the temperature change If 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? It is given that the Specific heat capacity of Au= 0.128
A compound with molecular formula C5H11N has no ? bonds. Every carbon atom is connected to exactly two hydrogen atoms.
A feed mixture weighing 200 kg of unknown composition containing water, acetic acid, and isopropyl ether is contacted in a single stage with 280 kg of a mixture
A thief plans to steal a gold sphere with a radius of 30.0 cm from a museum. If the gold has a density of 19.3 g/cm^3, what is the mass of the sphere?
When aluminum reacts with concentrated hydrochloric acid, hydrogen gas evolves. The hydrogen is collected by displacement of water at 22ºC at a total pressure of 750 torr.
Relationship between refractive index and mole fraction, How can you use refractive indices to calculate weight % composition of a distillate and its residue? How can you convert the weight % composition to mole fractions?
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