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A 20.00 mL solution of nitric acid, HNO3, required 25.7 mL of 0.1313 M NaOH to reach a bromthymol blue end point. What is the concentration of the nitric acid solution?
Calculate delta H of this reaction. Assume that the total volume is the sum of the individual volumes and the density and specific heat capacity of the solution are the same as for pure water. d for water=1.00g/mL; c for water=4.184 J/g degrees Ce..
In a 50.0 L container, 4.00 moles of chlorine and 2.00 moles of bromine are placed and kept at 293.0 K until equilibrium is reached. At equilibrium there are 82.63 g of Br2
Which term or terms could be used to describe this sample of gold? Check all that apply. mixture heterogeneous mixture homogenous mixture solution pure chemical substance compound element
A 4.80 g nugget of pure gold absorbed 298 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
What happens to the interference pattern that results from the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour
What mass of ethanol, C2H5OH a nonelectrolyte, must be added to 10.0 L of water to give a solution that freezes at -10.0C? Assume the density of water is 1.0 g/mL. Kf of water is 1.86C/m.
calculate that how many liters of carbon monoxide gas, measured under the same conditions, is essential?
What is the partial pressure of each of the components. b. If the temperature is raised to 45°C, will the partial pressures change? If so, what will they be
A mixture of 70 mole% butane and 30 mole % hyrdrogen is burned with excess air. Fractional conversion of 85% of the butane and 90% of the hydrogen are achieved
what mass of sucrose should be combined with 474 of water to make a solution with an osmotic pressure of 8.55 at 310 ?
Crystalline silicon has a cubic structure. The unit cell edge length is 543pm. The density of the solid is 2.33g/cm3. Calculate the number of Si atoms in one unit cell.
One has a dipole of 0 D, and the other has a dipole moment of 2.95 D. Draw the structure of the stereoisomer with dipole moment of 2.95 D.
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