04/09/22

Determine the ph of each solution
Determine the pH of each solution.Part ApOH= 12.0Part BpOH= 4.5Part CpOH=0.85Part DpOH= 9.98
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04/09/22

Chemistry 212 titration question. Please Help!
Find the pH during the titration of 20.00 mL of 0.1860 M benzoic acid, C6H5COOH (Ka = 6.3  10-5), with 0.1860 M NaOH solution after the following additions of titrant.(a) 0 mL2.47(b) 10.00 mL?(c)... more
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04/09/22

chemistry 102 college

When 32.1 mg of a compound is dissolved in enough water to make 11.2 mL of solution at 25°C, the solution has an osmotic pressure of 554 torr. Calculate the molar mass of this compound.What is the... more
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04/09/22

Calculate the amount of americium-241 consumed in a smoke detector
Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a smoke detector (initially containing 5.00 µg of Am), in micrograms, that has been used for one... more
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04/08/22

What is the PH of a solution of 25mL of 0.100M CH3CO2H titrated with 25mL of 0.100M NaOH?
I calculated the moles of OH- in solution from the NaOH to be 0.0025 moles and 0.00003354 moles from acetate, the conjugate base. I also calculated the H+ to be 0.00003354 moles from the acetic... more
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04/08/22

At 22 ∘C, an excess amount of a generic metal hydroxide, M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.22. What is the 𝐾sp of the salt at 22 ∘C? 𝐾sp=
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04/08/22

Calculate the solubility (in g/L) of CaSO4(s) in 0.400 M Na2SO4(aq) at 25°C . The 𝐾sp of CaSO4 is 4.93×10−5 . solubility: g/L
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04/08/22

The Ksp of tin(II) hydroxide, Sn(OH)2, is 5.45 x 10^-27. Calculate the solubility of this compound in grams per liter
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04/08/22

What concentration of SO2−3 is in equilibrium with Ag2SO3(s) and 2.20×10−3 M Ag+ ?
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04/08/22

At a particular temperature, the solubility of In₂(SO₄)₃ in water is 0.0048 M.

A) What is the value of Ksp?B) If solid ln2(SO4)3 is added to the solution that already contains .200 M Na2SO4, what will the new solubility of the solid be?C) If solid ln2(SO4)3 is added to the... more
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04/08/22

chemistry question pls help i am struggling

A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 4.791 g is added to a 2.00 L flask containing carbon dioxide, CO2, at 30 ∘C. The CaO and BaO react completely with the... more
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04/08/22

What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.090 mol of HCl were added?
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04/08/22

Balanced equation

How would you write a balance equation between sodium hydroxide and oxalic acid ?
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04/08/22

Acid determine H3O and OH
Part AFor the strong acid solution 0.0750 M HCI, determine [H3O+] and [OH-].Part BFor this solution determine pH.Part CFor the strong acid solution 7.9×10−4 M HI, determine [H3O+] and [OH-].Part... more
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04/08/22

chemistry 102 college
What mass of glycerin (C3H8O3) must be dissolved in 171.0 g water to give a solution with a freezing point of –3.23°C? Kf for water = 1.86 °C∙kg/molDetermine the molality of C3H8O3.
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04/08/22

Chemistry question please help
A container of N2O3(g) has a pressure of 0.270 atm. When the absolute temperature of the N2O3(g) is tripled, the gas completely decomposes, producing NO2(g) and NO(g). Calculate the final pressure... more
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04/07/22

A mixture of two gases P and Q occupying volumes of 300cm(cube) and 100cm(cube) Respectively Exerts A Total pressure of 1800mmHg... What is the total pressure of Q?
Pls i'd love to have the answer in a very detailed way🙇‍♂️
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04/07/22

Calculate the [OH−] of a solution with a pH=13.43 at 25 °C .
I keep getting the answer 2.69 x10^-29
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04/07/22

How would you determine the equivalence point of a titration experiment between NaOH and vinegar

Im very confused on this whole equivalence thing
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04/07/22

Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases are optional.
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04/07/22

Complete and balance the equations according to acid and base behavior in water. Phases are optional.
HNO3 (aq) ---->Ba(OH)2 (s) ---->HF (aq) <---->
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04/07/22

Calculate the hydroxide ion concentration, [OH−] , for a solution with a pH of 11.25 .
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04/07/22

25.00 mL of a H2SO4 solution with an unknown concentration was titrated to a phenolphthalein endpoint with 43.25 mL of a 0.1481 M NaOH solution. What is the concentration of the H2SO4 solution?
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04/07/22

An employee at a party store inflates a spherical helium balloon to a diameter of exactly 12 inches.
An employee at a party store inflates a spherical helium balloon to a diameter of exactly 12 inches. While doing so, she notices that the thermostat is set to 72.0 degrees Fahrenheit. She then... more
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04/07/22

Based on the thermodynamic properties provided for water, determine the energy change when the temperature of 0.750 kg of water decreased from 125 °C to 63.5 °C.

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