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The concentration of OH- in a solution of household bleach is 3.6 x 10 M. (a) Determine the the pH and pOH of the bleach. (b) Discuss is the bleach acidic or basic?
Write down that ionization reaction of each of the following strong bases and determine the pH of the solutions. (a).0.010 M KOH, (b) 0.500M Sr(OH)2, and (c) 0.075 M NaOH.
At 75C the solubility of KNO3 is 155g per 100g water and 38.0g at 25C. Determine what mass of KNO3 will crystallize out of the solution if exactly the100g of its saturated solution at the 7
Determine the minimum quantity of 20C water required to dissolve all the KCl from the sample. Discuss how much KClO3 will be left after this treatment?
Discuss can this reaction be reversible? Find out the solubility of K2CO3 and KHCO3 and determine what might changes the solubility of these elements?
Determine the heat when 100 mL of 0.5 M HCl is mixed with the 300mL of 0.1M Ba(OH)2. Assuming that the final mixture has a mass of 400.0 g, the temperature of both solutions was initially 25 C and a
At sea level a barometer having a cross-sectional area of 1 cm2 calculates a pressure of 76 cm of mercury. The pressure exerted by this column of mercury is equal to the pressure exerted by all
A quantity of a diprotic acid which is having 5.00-g, was dissolved in the water and made up to exactly the 250 mL. Determine the molar mass of the acid if the 25.0 mL of this solution needed 11.1
Calculate the pH of (a) a solution that is 0.40 M CH3COOH and 0.20 M CH3COONa. (b) a 0.40 M CH3COOHsolution. Determine the pH of a saturated zinc hydroxide solution
Determine the numbers of grams of antifreeze must be dissolved in the 300 g of water in order to reduce the freezing point of the water to-13.02o C under 1 atm pressure (Kf:1.86 o C/m
Using iron and chromium as examples, explain the four chemical or physical properties in which the transition elements and their compounds differ from those of aluminum, magnesium and their
Determine the concentrations of Cu2+,Cu(NH3)42+, and NH3 at equilibrium if 2.50 g of CuSO4 are dissolved in the 9.0 X102 mL of 0.30 M NH3,. Explain in detail.
Calculate the molar mass of the acid when a 0.2688-g sample of a monoprotic acid neutralizes the 16.4 mL of0.8133 M KOH solution.
The synthesis of aluminum oxide is exothermic to the extent of 1672KJ/mol of oxide and the heat of formation of ferric oxide is-836 KJ/mol of ferric oxide.
What are the molarity and the molality of sucrose in this solution when a 10.0% aqueous solution of sucrose (C12H22O11) by mass has a density of 1.040 g/ml.
Determine the numbers of oxygen atoms are in the 53.5 g of calcium phosphate? Express your answer to the correct number of significant figures. Describe whether you would expect the same number of
At 910 mmHg and 36 oC a cylinder with a movable piston contains a 1024 ml sample of argon gas, determine the numbers of moles of gas are in the sample? Make sure to express the answer to the co
By assuming the complete reaction, determine what volume of .200 mol dm-3 HCl (aq) is needed to neutralize the 25.0cm 3 of .200 mol dm-3 Ba(OH)2
How can draw the structural formula and a sketch of the proton nmr spectrum of 3-bromo-2, 3-dimethylpentane, showing approximate chemical shifts and signal splitting. Illustrates the multiplic
In the procedure for the synthesis of 1-bromobutane some water was added to the initial reaction mixture. Discuss how might the yield of bromobutane be affected if the water were not added and expla
Compute the volume of the unit cell for Co if the cobalt has a HCP structure, atomic radius of 0.1253 nm, and the ac/a ratio of 1.623. Explain how does c/a relate to volume? And how do derive
Determine the numbers of milliliters of a .250 M KMnO4 solution are required to react totally with the 3.225 G of oxalic acid?
What percent of guanine would be in this sample if a sample of Dna were found to contain the 20 percent cytosine. Explain in detail.
By condensing 4.00L of a gas a solution is prepared, calculated at the 27 degrees Celsius and 748 mmHg pressures, into the 58.0g of benzene. Estimate the freezing point of the solution.
Identify the gram atomic mass of the silver using the information obtained in the calculation step. The mass of Ag= 1.57g of Ag divided by the mol of Ag= .22 mol of Ag which equals 71g/mol o Ag.