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How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
Calculate the volume of C2H2 that is collected over water at 23 Celcius by reaction of 0.751 g of CaC2 if the total pressure of the gas is 740 torr. (The vapor pressure of water is 21.07 torr .)
In HPLC, how often should I need to run standard with samples? Why? If the retention time is changed with real samples compared to standard
The density of helium gas at 273K and 1.00 atm is 1.76E-4 g/mL. What is the volume (in L) of a balloon containing 9.24 g of helium under the same conditions?
A rigid tank with a volume of 2.5 m3 contains 15 kg of saturated liquid-vapor mixture of water at 75 0C . The water is heated. Determine the temperature at which the liquid in the tank is completely vaporized.
Lead has a face-centered cubic lattice with all atoms at the lattice points and a unit-cell edge length of 495.0pm its atomic mass is 207.2 amu what is the density of lead?
where all compounds are assumed as covalent then determine which reaction must be endothermic and also explain your answer briefly?
An aqueous solution contains 167 g CuSO4 in 820 mL of solution. Calculate the : a. Molarity b. Percent by mass c. Mole fraction d. Molality of the solution, The density of the solution is 1.195 g/mL
A gas-filled balloon having a volume of 5.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth),
At 250C, the equilibrium constant Kp for the reaction PCl5(g) PCl3(g) + Cl2(g) is 1.80. Sufficient PCl5 is put into a reaction vessel to give an initial pressure of 2.74 atm at 250C. Calculate the pressure of PCl5 after the system has reached equi..
What is the Volume of 0.75 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
Explain why butyl alcohol and isopropyl iodide are not formed in the reaction. Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees C to form exclusively isopropyl alcohol and 1- iodobutane.
Concrete used in road construction is reinforced using steel bars in a grid, known collectively as "rebar." After many years, rebar will begin to corrode, and the concrete will weaken.
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