A5.00 ml sample of h3po4 solution of unknown concentration is titrated with a 0.1090 m naoh solution. a volume of 7.12 ml of the naoh solution is required to reach the equivalence point. what is the concentration of the unknown h3po4 solution?

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?

Why is the bottom layer of a trophic pyrimid the