1. Which is more dangerous if you spill it on your hand a 0.025 M HBr...

1. Which is more dangerous if you spill it on your hand a 0.025 M HBr solution (Ka = 1.3 x 10⁶ ) or 0.75 M HClO₂ solution (Ka = 1.2 x 10^-2 )? Evaluate the H₃O⁺

^2. For each pair below indicate which is stronger and support your answer with an explanation. a. Which is a stronger acid, H₂S or PH₃? b. Which is a stronger base CO₃^-2 or C₂H₅O^-?

Expert Solution

queen_honey_blossom answered 1 year ago

1) Picture a Styrofoam packing peanut in your hand. If you close your hand around it...

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Please show all your work! Sol Conc. NH3 (M) Conc.NH4+(M) pH 2 0.025 M 0 M...

Please show all your work! Sol Conc. NH3 (M) Conc.NH4+(M) pH 2 0.025 M 0 M 10.82 4 0.025 M 0.025 M 9.26 5 0.0025 M 0.0025 M 9.26 (total volume) 6 2.5mL 0.10M NH3, 2.5mL 0.1M NH4Cl & 1.0mL 0.10M NaOH & 4mL H2O 10 mL 7 2.5mL 0.10M NH3, 2.5mL 0.1M NH4Cl & 1.0mL 0.10M HCl of & 4mL H2O 10 mL 8 2.5mL 0.10M NH3, 2.5mL 0.1M NH4Cl & 5.0mL 0.10M HCl 10 ml 9 2.5mL...

Assume you are carrying out the titration of 50 mL of a 0.025 M solution of...

Assume you are carrying out the titration of 50 mL of a 0.025 M solution of acetic acid with 0.1023 MNaOH. Acetic acid has aKaof 1.8×10−5. (a) Calculate the pH of the solution at V= 0, V= 0.3Veq, V=Veq, and V= 1.2Veq. (Veq is the equivalence point volume) (b) If a phenolphthalein indicator was used in this titration, where would the apparent endpoint occur? Assume the apparent endpoint would occur at the end of the color range of the indicator...

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From an ongoing perspective (once issued), which is more (possibly) dangerous to a company? A Bond or Stock? Why? Give specific examples both from a legal and cost of money and liquidity perspective to substantiate your opinion....

1.Consider the titration of a 23.0-mL sample of 0.180 M CH3NH2 with 0.150 M HBr. (The...

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Which acid has a higher hydrogen ion concentration? a) 0.050 M HNO3 c) 1.25 M HBr

2. M&M’s are delicious. “They melt in your mouth, not in your hand.” According to the...

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Air at 20°C (1 atm) is flowing over a 0.025-m diameter sphere with a velocity of...

Air at 20°C (1 atm) is flowing over a 0.025-m diameter sphere with a velocity of 3.5 m/s. If the surface temperature of the sphere is constant at 80°C, determine the Reynolds number corresponding to the sphere, its average drag co-efficient, and the heat transfer rate from the sphere. The properties of air (1 atm) at the free stream temperature T∞ = 20°C, ρ = 1.204 kg/m3, k = 0.02514 W/m∙K, μ = 1.825 × 10−5 kg/m∙s, and Pr = 0.7309. At the surface temperature Ts= 80°C: μs =...

Which of the following is a redox reaction? More than one answer may be correct. HBr(aq)...

Which of the following is a redox reaction? More than one answer may be correct. HBr(aq) + KOH(aq) → H2O(l) + KBr(aq) SO3(g) + H2O(l) → H2SO4(aq) HBr(aq) + Na2S(aq) → NaBr(aq) + H2S(g) NH4+(aq) + 2 O2(g) → H2O(l) + NO3–(aq) + 2 H+(aq) 2 Na(s) + Cl2(g) → 2 NaCl(s) None of the above are redox reactions.

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