particles smaller than 2.5 micrometers in diameter affect human health more than do larger particles. identify 5 chemicals that you might expect to see in high concentrations in these particles in polluted air. why did u pick these chemicals?

1) A 50.0-mL volume of 0.15 M HBr is titrated with 0.25 M KOH. Calculate the pH after the addition of 11.0mL of KOH

2) A 75.0-mL volume of 0.200 M NH3 (Kb=1.8

Q: A reaction vessel is pressurized with 1.600 atm of CO2 . At equilibrium, the pressure of CO2 is 1.200 atm. What is the equilibrium constant, KP? 2 CO(g) + O2 (g) −−−− 2 CO2 (g)

Any detail to this problem solution will help to better understand, thanks.

*I have posted this problem for help already but I'm not sure if the response was correct, mostly due to the division part. My understanding is that the sum which is 2 CO2 (g) goes first on top of division the, then 2 CO(g) + O2 (g) goes on bottom of divion line.Can someone solve this problem to better understand, thanks.

ClO(aq) + 3I(aq) + H₂O(I) ------> I₃(aq) + CI(aq) + 2OH(aq) (Equation 1)

I₃(aq) + 2S₂O₃^2-(aq) -----> 3I(aq) + S₄O₆^2- (aq) (Equation 2)

IO₃^- (aq) + 8I^-(aq) + 6H⁺(aq) ----> 3I₃^-(aq) + 3H₂O(I) (Equation 3)  

Part A: To standardize a thiosulfate (S₂O₃^2-) solution, 10.00 mL of a  1.199×10⁻² MM   KIO₃ solutionare treated with excess KI to generate I₃^- according to Equation 3. How many moles of I₃^- are generated?

Part B: If  5.99 mL of the S₂O₃^2- solution are required to reach the endpoint of the titration, what is the molarity of S₂O₃^2- in the solution? (Use Equation 2.)

Part C:  2.11 g of bleach solution are treated with excess KI to generate I₃^- according to Equation 1 on page 161 in the lab manual. 27.02 mL of the standardized S₂O₃^2- solution in Part B are required to reach the endpoint of the titration. How many moles of S₂O₃^2- is this? (Use Equation 2.)

Part D: How many moles of I₃^- are involved in the reaction? (Use Equation 2.)  

Part E: How many moles of ClO^- are involved in the reaction? (Use Equation 1.)

Part F: How many moles of NaClO are involved in the reaction?

Part G: What is the mass percent of NaClO in the bleach solution? Recall, the mass of bleach used in the reaction is 2.11 g .

350. mL of a NaOH solution was added to 500. mL of 2.50 M HNO₂. The pH of the mixed solution was 1.75 units greater than that of the original acid solution. Calculate the molarity (in M) of the initial NaOH solution. (K_a of HNO₂ is 4.5x10^-4)

17. In one or two well-developed paragraphs and in your own words, explain what "hybridization" means. As part of your explanation, describe the hybridization within NH3 and CH2O.

When 0.873 g of neon is added to an 700-cm3 bulb containing a sample of argon, the total pressure of the gases is found to be 1.73atm at a temperature of 298 K .
Find the mass of the argon in the bulb.

A doctor prescribed magnesium oxide as a health supplement. Assuming that a capsule contains 400mg magnesium oxide, determine the number of unit cells of magnesium.

Predict the kind various of copolymer and polymerization mechanism of depending on the reactivity ratio of
Nitro ethylene and propylene

If fermentation did not occur during anaerobic metabolism, glycolysis would come to a screeching halt. Why?

What is the cell potential for the reaction

Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)

at 43 ∘C when [Fe2+]= 3.10 M and [Mg2+]= 0.110 M .

E=____V

You are given a sample of several compounds to separate by paper chromatography. You draw a pencil line exactly 1.0 cm from the bottom of the paper, and place a spot of sample on it. You dry the sample, then develop it in a solvent.

When the chromatogram is taken out of the solvent, the paper is wet up to 9.0 cm from the bottom of the sheet. The compound you are interested in shows up as a spot 7.3 cm from the bottom of the paper.

Calculate the following:

How far did the compound move?

In the same time, how far did the solvent move?

What is the Rf factor for the compound?

Predict the following to be primary secondary or tertiary: Hexane if insoluble in water. 1-Hexene if insoluble in water but tests positive for a Br2 test. 1-bromobutane if insoluble in water but tests positive for a AgNO3. Ethanol and cyclohexane if they both tests postive for a Lucas test. and finally Ether if it tests negative for a Lucas test.

Write the electron configurations for the following ions, and determine which have noble-gas configurations.

A) Ru ³⁺   B) As^3-   C) Y³⁺  D) Pd²⁺   E) Pb²⁺ F) Au³⁺