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Problem- Nitrogen monoxide (NO) and nitrogen dioxide (NO2) are toxic, corrosive gases that significantly lower blood pressure when inhaled. How are these gases produced in experiments? What should you do to protect yourself against their toxicity?
Not confident which formulas/units I require to solve something like this
Problem- A certain indicator, HA, has a Ka value of 0.000016 M. The protonated form of the indicator is yellow and the ionized form is blue. 1. What is the pKa of the indicator
A hydrocarbon, K, adds one mole of hydrogen in the presence of a platinum catalyst to form n-hexane. When K is oxidized vigorously with potassium permanganate, a single carboxylic acid, containing three carbon atoms, is isolated.
What is the boiling point of a solution of 30.20 g of ethylene glycol, HOCH2CH2OH, in 88.40 g of phenol?
A solution containing 100g of an unknown substance and 900g of water. The solution has a Freezing Point of -3.33*C. What is the molar mass of the substance?
Carbon dioxide makes up approximately 0.04% of Earth's atmosphere. If you collect a 2.8 sample from the atmosphere at sea level (1.00 ) on a warm day (28), how many molecules are in your sample
What is the concentration of [Cl?] in a solution of 10 mL of 12 M HCl when 6 mL of water is added
Is the reaction spontaneous?
Given the following thermodynamic data, calculate the lattice energy of CaBr2 (s). Term & Value Delta Hf[Ca(g)] 179; delta Hf[Ba(g)] 112; I1(Ca) 590; I2(Ca) 1145; E(Br) -325.
A mixture of NaCl and sucrose of combined mass 10.2g is dissolved in enough water to make 250 mL of solution. The osmotic pressure of the solution is 7.32atm at 23 C. Calculate the mass percent of sodium chloride.
Calculate the change in the entropies of the system and the surroundings, and the total change in entropy, when a sample of nitrogen gas of mass 14 g at 298 K and 1.00 bar doubles its volume in a.) an isothermal reversible expansion
if a temperature increase from 20.0deg.c to 36.0deg.ctriples the rate constant for a reaction what is the value of the
Why do you suspect that 1-propanol is used as the reaction solvent (Base-Catalyzed Dehydrochlorination of 2-Chloro-2-methylbutane), rather than the more common ethanol
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