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Ammonium cyanate reacts in water to form urea. Utilizing the rate law for the reaction, forecast the amount of ammonium cyanate remaining after 90.0 minutes from a starting amount of 0.555 mol/L.
Rate law for the reaction: NH4NCO->(NH2)2CO rate = k[NH4NCO]^2.
The value of K = 0.00511 L/mol min.
The normal boiling point of a liquid is 62 c and it has aheat of vaporization of 32.5 kj/mol. What is the vapor pressure at 25 c
A sample of oxygen that occupies 2.5 × 10-6 mL at 508 mm Hg is subjected to a pressure of 1.2 atm. What will the final vol ume of the sample be if the temperature is held constant?
An electron in the n = 7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 397nm. What is the value of n for the level to which the electron relaxed?
Gold has cubic crystals whose unit cell has an edge length of 407.9 pm. The density of the metal is 19.3 g/cm3. Calculate the number of gold atoms in a unit cell. What type of cubi lattice does gold have
Explain how many mmol of NaOH will react entirely with 50ml of 1.5M H2C2O4. Explain how many moles of H3O+ are present in 250ml of 0.30M solution of H2SO4
.Alkenes can have cis-trans isomerism. b.Alkenes are chemically reactive at the double bond. c.Alkenes are nonpolar compounds. d.Alkenes are less dense than water
at 25 degrees C calcium fluoride has a solubility product constant Ksp= 3.0*10/\(-11). If enough CaF2 is added to saturate the following solutions, determine the equilibrium concentrations
a certain dry mixture contains only three compounds- silver nitrate magnesium chloride and barium nitrate. when 1.253 g
If 225.6 grams of calcium phosphate are produced in a precipitation reaction, how many moles of the salt have been formed
Use the data in the simulation to find the concentration of hydroxide, \rm OH^-, ions in a 0.100 M solution of \rm HOAc , acetic acid.
If the pollutant to be removed has a concentration of 100 mg/L and decays by 1st-order kinetics with a rate coefficient of 2.25 d-1, what percent removal is achieved if one uses the theoretical hydraulic retention time of the reactor. What percent..
What mass of solid silver chloride will precipitate from a solution containing 1.5 grams of calcium chloride if an excess amount of silver nitrate is added? CaCl2(aq) + 2AgNO3(aq) = 2AgCl(s) + Ca(NO3)2 (aq)
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