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0.30 g of hydrogen chloride (HCl) is dissolved in water to make 4.5 L of solution. What is the ph of the resulting hydrochloric acid solution?
How much more extra of the insufficient reactant would be needed to completely react with the excess remaining of the other reactant. (N = 14, H = 1, Cl = 35.5)
What is the volume of the gas at STP conditions? b.) What is the molar volume of the gas?
A laser pulse with a wavelength of 532 nm contains 3.85 mJ (milliJoule) of energy. (a) Calculate the frequency and energy per photon of the laser light. (b) How many photons are in the laser pulse? (c) What is the energy in kilojoules per mole (kJ..
what mass of water would need to evaporate from your skin in order to dissipate 1.7 times 105 j of heat from your body?
Use metric conversion factors to solve the following problem. A park has an area of 150000 m^2. What is the area in km^2?
Based on this equation, what is the value of the Rydberg constant (R) in m-1? (5 significant figures)
If the concentration of bromide ion in a saturated solution in equlibrium with PbBr2 solid is determined to be .0125M what is the solubility of PbBr2
determination of the partial pressures of the gases.a mixture of cs2nbspg and excess o2nbspg is contained in a
A sample of iron was dissolved iin hydrochloric acid. The liberated hydrogen was collected by displacement of water. The hydrogen occupied 262 mL at 26 c.
A solution of 2.00 g of para-dichlorobenzene (a clothes moth repellant) in 50.0 g of cyclohexane freezes at 1.05 C. What is the molar mass of
At 25 C the reaction from Part A has a composition as shown in the table below. What is the free energy change,delta G , in kilojoules for the reaction under these conditions. C2H2(g) 4.15 H2(g) 4.45 C2H6(g) 2.25×10-2 ?G = ??? kj
Find the mathematical relationship that relates energy of a photon emitted as an electron relaxes from a higher energy level to a lower energy level in a hydrogen atom. Use this equation to calculate the wavelength of the photon emitted in units o..
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