Part A In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and water into glucose and oxygen), the oxygen gas emitted by an aquatic plant is collected over water at a temperature of 293 K and a total pressure of 756.4 mmHg. Over a specific time-period, a total of 1.40 L of gas is collected. The partial pressure of water at 293 K is 17.55 mmHg. What mass of oxygen gas (in grams) forms? Express your answer with the appropriate units. m(02) = 7.29 g

In a hot combustion chamber, oxygen diffuses through air to a flat carbon surface where it reacts to produce CO and/or CO2.  Reduce the general differential equation for mass transfer to write a specific differential equation for oxygen that will describe the steady-state mass transfer process. The concentration of oxygen at z=δ is 21 mole percent. The reaction at the surface may be assumed to occur instantaneously. No reaction occurs in the gas film. What would be the form of the equation providing the flux of oxygen if (a) only carbon monoxide is produced on the carbon surface; (b) only carbon dioxide is produced on the carbon surface; (c) the following instantaneous reaction occurs on the surface, 4C+3O2→2CO+2CO2.

= O Kinetics and Equilibrium Calculating average and instantaneous reaction rate from a graph of... Here is a graph of the pressure of boron trifluoride (BF, in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. Explanation Check atm y 30+ 25.724 20- 15 10- 5 0 50 100 150 seconds Is BF3 being created or destroyed by the chemical reaction? If BF is being created or destroyed, what is the rate at which it is being created or destroyed 110 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. in beine If BF is being created or destroyed, what is the 200 250 created destroyed 300 x neither created nor destroyed 0 x10 010 X 0/5 Ś Izabella ? olo 18 Ar 8. © 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

Consider the reaction 2AB(g) → A2(g) + B2(g). If [AB] at 96 minutes was 0.71OM and dropped to 0.520M by 320.minutes, calculate the rate of consumption during this time frame.

In the nuclear industry, workers use a rule of thumb that the radioactivity from any sample will be harmless after 10 half-lives. What fraction of a radioactive sample remains after this time? (Radioactive decay obeys first-order kinetics.)

Here is a graph of the pressure of ozone (03) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. atm 3.00- 2.50- 200- 1.950 1.50- 1.00- 0.50- > 0 500 1000 1500 seconds 2000 2500 3000 3

The impact of CFCs on the ozone layer is amplified by the fact that the decomposition of a single CFC molecule can result in the destruction of thousands of ozone molecules. CFCs react with oxygen to produce many reactive intermediates. O CFCs replicate in the stratosphere. O CFCs decompose before reaching the stratosphere.

A metal cube dissolves in acid such that an edge of the cube decreases by 0.60 ​mm/min. How fast is the volume of the cube changing when the edge is 7.70 ​mm?