Q: If weak acids ionize only a few percent in aqueous solution, why is it possible to fully neutralize…
A: Concept: Weak acid: Weak acids are acids which don't completely dissociate in solution. In other…
Q: What is the weight percent (w/w) of NaOH in a solution prepared by dissolving 30.0g of NaOH in…
A: The given data contains, weight of NaOH =30.0 g weight of water =120 g
Q: H.W:- Calculate the Formal and Molar concentrations of the constituents in 2.30 g of ethanol (g. fw…
A: Given: Mass of ethanol= 2.30 g Formula Weight of ethanol= 46.1 g/mol Molar mass of ethanol= 46 g/mol…
Q: Write the whole acid base equation for the reaction of KOH(aq) with HC4H7O2(aq) b) write the net…
A: (a) Acid base equation KOH(aq) + HC4H7O2(aq) → KC4H7O2(aq) + H2O (l) (b) Net ionic…
Q: Using paleolimnological methods it is possible to estimate past pH values of surface waters. If the…
A: Solution: Given that pH of surface water using paleolimnological method is 5.787 So, pH = -log[H+]…
Q: Describe the clinical effects of elevated concentrations ofsodium ions in the blood.
A:
Q: Suggest how the cations in each of the following solutionmixtures can be separated: (a) Na+ and Cd2…
A: (a) The given solution mixture is Na+ and Cd2+ H2S is used to precipitate Cd2+ as CdS (the sulfide…
Q: 7. What is the pH of a 0.025 mol/L solution of methanoic acid? K₁ = 1.8 x 104
A:
Q: What products should form during the reaction between hydrochloric acid, HCl(aq), and a solution of…
A: In Balanced chemical equation number of atoms of each species are equal on both reactant and…
Q: The pH of the fluid in the human stomach following a meal is generally around 1.5. What is the…
A: Given, pH = 1.5 To find: hydrogen ion concentration, [H+]?
Q: What is the pH of a 0.35 M solution of trimethylamine, (CH3),N (Kb = 7.4 x 10 5)?
A: Given : concentration of (CH3)3N solution = 0.35 M Kb for (CH3)3N = 7.4 × 10-5 To calculate :- pH…
Q: The pH of an aqueous solution of 0.061 M ascorbic acid, H2C,H606 (aq), is
A: Please find your solution below : pH is the measure of extent of H+ concentration and the extent of…
Q: 8 g of potassium chloride is dissolved in a quart of distilled water. Calculate the pH value of the…
A: pH is the negative logarithm of the hydrogen ion concentration. It is a measure of acidity or…
Q: Define and describe the properties of acids and bases with respect to hydrogen ions?
A: The formation of salt and water takes place when acids and bases are reacted. Some of the examples…
Q: The pH of an aqueous solution of 8.08×10 M sodium hypochlorite, NaCIO (aq), is This solution is
A: Basic salt is the Salt formed from strong base and weak acid solution 8.08 x 10-2 = 0.0808 M NaCIO…
Q: Estimate the pH of 0.010 M NaCH3CO2(aq).
A:
Q: Calculate the energy released for the consumption of 350mL of 6.5 M LIOH in the following…
A:
Q: You have been contracted to determine how different salts affect the pH of water. Which of the…
A: Salts are basically formed when an acid reacts with a base. strong acid+strong base→salt+water To…
Q: The pH of an aqueous solution of 0.021 M hydrosulfuric acid, H2S (aq), is .
A: H2S is a weak diprotic acid. Since the Ka2 of H2S is << Ka1 of H2S Hence we can assume only…
Q: 5. A solution is initially 0.050 M in ammonia, NH3 (Kp = 1.8 x 10°). (a) Write the equilibrium…
A:
Q: At the freezing point of water, Kw = 1.2 x 1015, What is the pH of ice water?
A:
Q: Formulate the acid-base reactions with ions, mark conjugate acid-base pairs of the reaction of…
A: An acid is the species that donates H+ or accepts lone pair. A base is a species that accepts H+ or…
Q: Calculate the pH of a 2.61 mol/L solution of ammonium hydrogen carbonate, NH4HCO3
A:
Q: Write the chemical reaction involved in the preparation of sulphur sol.
A: A solution can be defined as the mixture that consists of two components; solute and solvent. Here…
Q: What are the respective concentrations (M) of K+ and CO32-afforded by dissolving 0.530 mol K2CO3 in…
A: Given, Moles of K2CO3 = 0.530mol. Volume = 1.50L. The molarity of the solution can be calculated as
Q: The pH of an aqueous solution of 0.0327 M ascorbic acid, H,C,H,O6 (aq), is
A: The solution is as follows:
Q: 5A.3(a) Suppose that na = 0.10ng and a small change in composition results in Ha changing by 8µ…
A:
Q: The pH of an aqueous solution of 0.0103 M hydrosulfuric acid, H2S (aq), is
A: Given, Molarity of H2S = 0.0103 M First acid dissociation constant of H2S = Ka1 = 1.0 x 10-7…
Q: Determine the pH of a 0.0400 mol / L solution of H 2 S (aq).
A: The pH of a solution can be determined by the hydrogen ion's concentration. It is the negative…
Q: Lactic acid (ch3ch(oh)cooh) is produced by bacteria in the mouth from food residues and is…
A: Given that, Concentration of lactic acid sample = 0.528 mol/L Ka value of lactic acid = 1.4×10-4…
Q: 98 grams of sodium acetate (Mol. wt =82 g/mol) were placed in 764 mL of water such that the final…
A:
Q: If a substitution process is associative, why may it be difficult to characterize an aqua ion…
A: Answer - Labile - a compound that undergoes reactions with a relatively high rate of. substitution.…
Q: The pH of an aqueous solution of formic acid (HCOOH) is 3.318. What is the initial molar…
A:
Q: When 0.650g of compound W is dissolved in 27.8g biphenyl (Kf= 8.0oC/ molal, fp= 70.0oC), the fp of…
A:
Q: Calculate the pH of 1.00M acetic acid, HC2H3O2(aq). (Ka = 1.8 x 10-5)
A: Dissociation constant, Ka = 1.8 x 10-5 Concentration of acid = 1 M
Q: Assuming the base completely dissociates in water, what is the pH of a 5.20 g/L solution of Ba(OH)2…
A: pH is basically the negative logarithm of concentration of H+ and it is given by the formula:…
Q: A brand of window-cleaning fluid is composed of ammonia solution, water, a colouring agent, and a…
A:
Q: Below is the reaction for the formation of acid rain due to high concentration of atmospheric…
A: Given reaction is : CO2 (g) + H2O (l) <---------> H2CO3 (aq) pH = 3.5 What is the…
Q: what should be done to mitigate the impacts of ocean acidification on the Great Barrier Reef
A: Mitigation the impact of ocean acidification on the great barrier reef
Q: Why does acid rain fall far from the source? Show the equations leading from the combustion of…
A: Interpretation- Tell why does acid rain fall far from the source and show the equation leading from…
Q: Calculate the saturation or equilibrium concentration (mg/L) of oxygen, nitrogen, and carbon dioxide…
A:
Q: The pH of an aqueous solution of 0.255 M hydrosulfuric acid, H2S (aq), is
A:
Q: Describe the preparation of a. 600 ml of 5 75% (w/v) aqueous glycerol (C.H.OH, 46.1 g/mol) b. 600gof…
A: Percent (w/v) is a form of expressing the concentration of a solution, that is weight/ volume…
Q: prove that for the weak acid CH3COOH and its conjugate base CH3COO- then (Ka x Kp = Kw ).
A:
Q: What are the pH and pOH of 0.075 M NaOH(aq)?
A: Since NaOH is a strong base Hence it will dissociate completely in solution Since the dissociation…
Q: Write an expression for the equilibrium constant for this reaction: N2O4(g)+ O3(g)=N2O5(s)+O2(g)
A:
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
- A mixture of methane and air is capable of being ignited only if the mole percent of methane is between 5% and 15%. A mixture containing 9.0 mole% methane in air flowing at a rate of 7:00 x 102 kg/h is to be diluted with pure air to reduce the methane concentration to the lower flammability limit. Calculate the required flow rate of air in mol/h and the percent by mass of oxygen in the product gas. (Note: Air may be taken to consist of 21 mole% O2 and 79% N2 and to have an average molecular weight of 29.0.)Hexanoic acid was added to an immiscible biphasic solvent system, water and CCl4 at 20.0OC and the equilibrium concentrations of hexanoic acid were determined to be 3.66 g/L in H2O and 67.0 g/L in CCl4. Caluclate the distrubution coeffiecent (D2) of hexanoic acid in water with respect to CCl4.One litre of a saturated aqueous solution of Ag2SO4 (MW = 311.79 g mol- 1) at 25 °C is evaporated to dryness. 4.844 g of Ag2SO4 residue was produced. What is the solubility product (Ksp)?
- Q3 / The solubility of sodium chloride NaCl in water at 290 Kis 35.8 kg / 100 kg of water. Express the solubility as the following: 1. Mass fraction and the mass percent of Naci 2. Mole fraction and mole percent of NaCl 3. kmol of NaCl per 1000 kg of water Note: molecular weight of NaCl = 135.8, and water = 18.016(a) The heat evolved upon dissolution of atmospheric ozone into water is determined to be +5 kcal/mol at 298 K. Given that ozone has a Henry’s constant of 9.4 × 10−3 mol/L/atm at 298 K, determine its Henry’s constant at 273 K. Note that the definition of Henry’s constant is for the process air to water. (b) If the atmospheric ozone concentration in a polluted air is 100 ppbv, what is the concentration in equilibrium with a body of water in that region at 298 K? Note that you need to assume no losses of ozone other than absorption into waterL-Serine is an amino acid important for its roles in synthesizing other amino acids and for its use in intravenous feeding solutions. It is often synthesized commercially by fermentation, and recovered by subjecting the fermentation broth to several processing steps and then crystallizing the serine from an aqueous solution. The solubilities of L-serine (L-Ser) in water have been measured at several temperatures, producing the following data:5T(K) 283.4 285.9 289.3 299.1 316.0 317.8 322.9 327.1x(mole fraction L-Ser) 0.0400 0.0426 0.0523 0.0702 0.1091 0.1144 0.1181 0.1248One of the ways such data can be represented is with the van’t Hoff equation: ln x =( a=T b).Graph the data so that the resulting plot is linear. Estimate a and b and give their units.
- Q1. Dissolved 0.273 grams of pure sodium oxalate (Na,C,O.) in distilled water and added sulfuric acid and titration the solution at 70 ° C by using 42.68 ml of KMNO, solution and has exceeded end point limits by using 1.46 ml of standard oxalic acid (H; C;O.) with 0.1024 N. Calculate the normlity of KMN0.. Note that the molecular weight of sodium oxalate (Na,C,O.) = 134 and its equivalent weight = 67A polymer of large molar mass is dissolved in the organic solvent m-cresol (C7H8O) at 25 °C, and the resulting solution rises to a final height of 13.4 cm above the level of the pure solvent, as solvent molecules pass through a semipermeable membrane into the solution. If the solution contains 5.24 g polymer per liter, calculate the molar mass of the polymer. Take the density of the solution to be 1.03 g cm-3.An experiment was conducted to determine the effect of glucose on the freezing point of water. Experimental data showed thatthe freezing point depression of water in solution was –2.6°C when 1.0 g of glucose was dissolved in 10g of solvent. Calculatethe expected freezing point for such solution and compare the expected freezing point to the value found experimentally. Give aplausible explanation for any discrepancies. (M.W. of glucose= 180.16g/mol; i=1). Show all your work.
- A 0.512 g sample of a commercial phosphate detergent was ignited at a red heat to destroy the organic matter. The residue was taken up in hot HCl, which converted the P to H3PO4. The phosphate was precipitated as MgNH4PO4.6H2O by addition of Mg2+ followed by aqueous NH3. After being filtered and washed the precipitate was converted to Mg2P2O7 by ignition at 1000 0C and the residue weighed 0.1151g. (a) What is the Gravimetric Factor to convert Mg2P2O7 to P? (b) Calculate the percent P in the sample could you type it out pleaseSuppose you have a soil that is made up of 10% organic matter with CEC = 200 cmol/kg, 40% kaolinitewith CEC = 10 cmol/kg, and 50% vermiculite with CEC = 100 cmol/kg.1- Calculate the overall CEC of the soil by taking a weighted average of the three soil components.2- What percentage of the overall CEC is contributed by the organic matter? How does that numbercompare to the 10% of the soil itself that is organic?A 100 g soil containing 20% smectitie mineral matter was mixed with 150 mL solution containing 0.10 M Pb. CEC of pure smectitie is 110 emol(+)/kg. CEC of the soil (cmol(+)/kg) is: