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What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear?
a.)93.5 kJ/mol
b.)8.20×10-4 kJ/mol
c.)1800 kJ/mol
A 782 mL gas sample at STP is compressed to a volume of 131 mL, and the temperature is increased to 22?C. What is the new pressure of the gas in Pa?Answer in units of Pa.
What is the molarity of a solution of 10% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass. The density of the solution is 1.10 g/mL.
acidifying with dilute H2SO4 and titrating with a 0.01804 M KMnO4 solution. 33.15 mL of the permangate solution was needed to reach the end point of the titration. What is the actual molar concentration of the H2O2 solution?
The nitrite ion (NO2-) is commonly determined by a colormetric procedure using a reaction called the Griess reaction. Im this reaction the sample containing nitrate is reacted with sulfanilimide
If you have 240.0 mL of water at 25.00 °C and add 100.0 mL of water at 95.00 °C, what is the final temperature of the mixture.
If water at the boiling point is saturated with potassium hydrogen tartate, 30 mL of the solution requires 49.5 mL of 0.2 M NaOH in a titration. What is the KSP of potassium hydrogen tartate at this temperature and what is the solubility in g/L.
Can someone please provide me with the elementary steps (reaction mechanism with the curved arrows) to the oxidation of ethanol to ethanal
A lithium atom is contained in a cubic well 10 nm on a side. (a) Calculate the energy (joules) required to achieve the transitions from the ground state to the first excited state for this system
Which of the following pairs of atomic orbitals on adjacent nuclei can overlap to form a sigma bond? Consider the x-axis as the internuclear axis
1.00g sample of water is allowed to vaporize completely in a 10.0l container. what is the pressure of the water vapor
3-nitrophthalic acid will be first converted into 3 nitrophthalhydrazide by reacting with 25% hydrazine. Reduction of the nitro group to an amino group with sodium hydrosulfite affords luminol.
Thiosulfate was used to mask the copper in a 20.00 mL aliquot. Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution.
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