10/19/23

Find the percent ionization of : a 1.35 M solution of generic base B. Kb = 6.62 x 10-3

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10/19/23

Calculate the resulting pH when 100. mL of 0.200 M HOCl is mixed with
Calculate the resulting pH when 100. mL of 0.200 M HOCl is mixed witha. 75 mL of 0.15 M KOH b. 275 mL of 0.15 M KOH
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10/19/23

Suppose Kw is 4.0 × 10-14 at some temperature.
Suppose Kw is 4.0 × 10-14 at some temperature.a. Calculate pH and pOH for pure water at this mystery temperature. pH = pOH = b. Suppose you have a solution with a pH of 6.75 at this mystery... more
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10/19/23

Complete the balanced chemical equation for the following reaction between a weak base and a strong acid. KNO2+H2SO4
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10/18/23

Determine the formal charge on each atom in the structure.
Determine the formal charge on each atom in the structure.Answer Bank: -4,-3,-2,-1,0,1,2,3,4 H H B H H
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10/18/23

calculate the number of molecules of oxygen required to react with 16.0g of sulfur in the following reaction S + O2 --------SO3
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10/18/23

Calculate the final concentrations of K+(aq), C2O4^2-(aq), Ba^2+, and Br^-(aq)in a solution prepared by adding 0.100 L of 0.200M K2C2O4 to 0.150 L of 0.250M Babr2. Ksp value is 2.3 x 10^-8
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10/18/23

Use the structure to determine the molecular formula, molar mass, and percent by mass of sulfur in this compound.
Use the structure to determine the molecular formula, molar mass, and percent by mass of sulfur in this compound.molecular formula:?molar mass:? g/molpercent by mass of sulfur:? %Biological studies... more
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10/18/23

Indicate the direction of polarity of any polar covalent bonds. If a bond is covalent or ionic, leave it blank.
Indicate the direction of polarity of any polar covalent bonds. If a bond is covalent or ionic, leave it blank. C−C C−H C−S S−S S−O Answer Bank: +--> or <--+
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10/18/23

o A diprotic acid (HA) has Kal = 4.60 × 10-7 and Ka2 = 5.24 × 10-¹¹. What is the pH of a 0.489 M H₂A solution? pH =
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10/18/23

calculate the moles of oxygen needed to react with 1.20 g of cigarette lighter gas, butane, C4H10 in combustion reaction
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10/18/23

Calculate the solubility at 25 °C of Co(OH)2 in pure water and in a 0.0130M CoCl2 solution.
Calculate the solubility at 25 °C of Co(OH)2 in pure water and in a 0.0130M CoCl2 solution.Co(OH)2 Ksp = 5.92 x 10-15 Round both of your answers to 2 significant digits.solubility in pure water:... more
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10/17/23

Heat capacity Gen Chem
Two solid objects, A and B, are place in boiling water and allowed to have the same temperature there. Each object is then lifted out and placed in separate beakers containing 1000 g of water at... more
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10/16/23

Calculate the solubility at 25 °C of Ni(OH)2 in pure water and in a 0.0170M NaOH solution.
Calculate the solubility at 25 °C of Ni(OH)2 in pure water and in a 0.0170M NaOH solution. Ni(OH)2 Ksp = 5.48 x 10-16 Round both of your answers to 2 significant digits.solubility in pure water:... more
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10/16/23

Calculate the solubility at 25 °C of BaCrO4 in pure water and in a 0.0180M BaCI2 solution.
Calculate the solubility at 25 °C of BaCrO4 in pure water and in a 0.0180M BaCI2 solution. BaCrO4 Ksp= 1.17 x 10-10Round both of your answers to 2 significant digits.solubility in pure... more
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10/16/23

The solubility of Mg(OH)2, in water at 25 ° is measured to be 0.0096 g/L. Use this information to calculate Ksp for Mg(OH)2.
The solubility of Mg(OH)2, in water at 25 ° is measured to be 0.0096 g/L. Use this information to calculate Ksp for Mg(OH)2.Round your answer to 2 significant digits.
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10/16/23

The solubility of PbCO3, in water at 25 °c is measured to be 7.3 x 10-5 g/L. Use this information to calculate Ksp for PbCO3.
The solubility of PbCO3, in water at 25 °c is measured to be 7.3 x 10-5 g/L. Use thisinformation to calculate Ksp for PbCO3.Round your answer to 2 significant digits.
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10/16/23

Calculate the solubility of PbF2 in water at 25 °C.
Calculate the solubility of PbF2 in water at 25 °C. PbF2 Ksp = 3.3 x 10-8Round your answer to 2 significant digits.___g/L
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10/16/23

Calculate the solubility of ZnCO3 in water at 25 °C.
Calculate the solubility of ZnCO3 in water at 25 °C. Ksp data is given below.ZnCO3 Ksp = 1.46 x 10-10Round your answer to 2 significant digits.___g/L
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10/16/23

Complete the solubility constant expression for CaF2. 
Complete the following solubility constant expression for CaF2. Ksp =
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10/16/23

Complete the following solubility constant expression for AgBrO3.
Complete the following solubility constant expression for AgBrO3.Ksp = 
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10/16/23

Write the balanced chemical equation that corresponds to the titration of aspirin with NaOH.
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10/16/23

General chemistry
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 550. mL of a solution that has a... more
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10/16/23

What is the approximate vapor pressure (to the nearest 50 torr) of H2O at 75 oC?
What is the approximate vapor pressure (to the nearest 50 torr) of H2O at 75 oC?
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10/16/23

What the approximate boiling point (to the nearest 10 oC) of CCl4 at 500 torr?
What the approximate boiling point (to the nearest 10 oC) of CCl4 at 500 torr?
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