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Lithium is the only metal that reacts with nitrogen gas at room temperature to form lithium nitride. To avoid oxide formation, the reaction is performed under pure nitrogen gas. Given the experimental data in the table below, what is the empirical formula of lithium nitride? The molar mass of lithium is 6.94 g/mol and of nitrogen is 14.01 g/mol.
Question- A 3.00 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400 C. After equilibrium was established, it was found that 24.0 percent of the NOCl had dissociated: 2NOCl(g) 2NO(g) + Cl2(g) Calculate the equilibrium constant K..
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
Question- Write (reduced) balanced equations for each of the following by inserting the correct coefficients in the blanks. (Use the lowest possible coefficients.)
Wine goes bad soon after opening because the ethanol (CH3CH2OH) in it reacts with the oxygen gas (O2) from the air to form water (H2O) an acetic acid (CH3COOH). What mass of ethanol is consumed by the reaction of 5.9g oxygen gas?
The ice at an ice skating rink has a temperature of -5C (268.15 K). Use the Clapeyron equation to calculate the pressure (in atm) that an ice skate blade must exert to permit smooth skating.
Use the rydberg equation to calculate the wavelength in nm of the photon when an electron in a hydrogen atom undergoes a transition from n=6 to n=2
Alkenes can be converted into alcohols by acid-catalyzed addition of water. Assuming that Markovnikov's rule is valid, predict the major alcohol product from 2-methylbut-2-ene
Write ground-state electron configurations for these ions, which play important roles in biochemical processes in our bodies. (Use a noble gas core abbreviation) Na^+, Mg^2+ Cl^- K^+
although the use of absorbances at 450 nm provided you with maximum sensitivity the absorbaces at say 400 nm or 500 nm
Hydrogen and oxygen react to form water vapour according to the following chemical equation.
Complete the reaction of salicylic acid and 4-aminobenzenesulfonic acid by drawing the expected product.
a pH meter measures the concentration of hydronium ions, H3O+ in solution through the creation of a concentration differential between a standard hydrogen half cell inside the pH probe and the concentration of hydronium ions outside the probe
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