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The estimated atmospheric carbon dioxide concentration in the Northern Hemisphere in 1950 was 310 ppmv. It may be predicted with some certainty that the concentration in 2020 will be 406 ppmv. Calculate the pH of pure rain that would be in equilibrium with the carbon dioxide in each of the 2 years cited, and comment on the contribution that carbon dioxide makes towards precipitation acidity.
*Work out the pH for the 310 ppmv CO2 case only. You can ignore water vapor pressure and assume a 298 K temperature.
How many calories are needed to heat 45g of iron from 14 degrees celsius to 47 degrees celsius. (specific heat = 0.11 cal/g degrees celsius)
Write the balanced net ionic equation for the following reaction in basic solution. Be sure to show phase labels in your final answer
Write a partial decay series for {\rm Th}-232 undergoing the following sequential decays: \alpha , \beta , \beta , \alpha . Part A \alpha -decay Express your answer as a nuclear equation.
If 4.00 L of HCl(g) at 1.00 barr and 273K and 26.0g of I2(s) are transferred to a 12.00 L reaction vessel and heated to 25C, what will the equilibrium concentrations of HCl, HI, and Cl2 be? Kc = 1.6 x 10^-34 at 25C for 2HCl(g) + I2(s) 2HI(g) + C..
A mass suspended on a spring is pulled down and released. It oscillates up and down as illustrated in Fig. 4.23. Assuming the total energy to be conserved, use the letter designations to identify the spring's position(s) as listed in Question 15. ..
Compare HASAW Act with Occupational health and safety regulations of Sultanate of Oman. and give an outline of what would be needed to set up a suitable safety management system to control the hazards in a chemical process industry
What is the name of the haemoglobin variant? Would this haemoglobin demonstrate a left or right shift on an oxygen dissociate curve ? Fully justify your answer.
Using the Henderson-Hasselbach equation, calculate the volume of 0.10 M Na2HPO4 and 0.10 M NaH2PO4 that would be required to make 100.0 mL of a 0.10 M (total phosphate concentration i.e. HPO4 + H2PO4) buffer with a pH of 6.91.
In the lab you make 10-5.5 M solutions of HCl and of NaOH using pure distilled deionized water. What would be the pH after the solutions equilibrate with the atmosphere
Reffering to the structure of estrone, a female sex hormone. What is the number of carbon atoms in estrone that are sp2 hybridized
determine the amount of ascorbic acid? Does the volume of ascorbic acid solution added before titration influence how much iodine solution will be needed?
Problem- At room temperature, the surface tension of water is 72.0 mJ m-2. What is the energy required to change a spherical drop of water with a diameter of 2.00 mm to four smaller spherical drops of equal size
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