If the pH of a solution is decreased from 9 to 8, it means that? the concentration of H* decreased by 10 fold and the OH" increased by 10 fold the concentration of H* decreased by 10 fold the concentration of H* increased by one fold the concentration of OH" increased by 10 fold the concentration of H* decreased by one fold the concentration of H* increased by 10 fold and the concentration of OH" decreased by 10 fold A 1-L unbuffered solution needs the pH adjusted from 3 to 1.5. How many mL of 2 molar HCI solution need to be added to reduce the pH? Report your answer using exponential notation to two decimal places! For example 100 would be 1E2, or 0.001 would be 1e-3 For this question, assume the volume of HCI being added is negligible and the total volume of the solution does not change.

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Q: Calculate the pH of the solution that results from mixing 20.0 mL of 0.0500 M HCN solution with 80.0…

A: The given solution contains: 20.0 mL of 0.0500 M HCN and 80.0 mL of 0.030 M NaCN solution.

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A: Given: Volume of buffer solution = 659 mL moles of NaOH = 5.0×10-3 mol moles of HCl = 5.0×10-3 mol…

Q: You have 100mL of 0.1M HCI in a beaker and you begin to add NaOH to the beaker. Consider the…

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Q: A student forgot to label two bottles of acid. One contained HCl and the other HClO. What test could…

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Q: 1.0 M HCl solution has a volume of 20.0 mL. Determine the pH of the solution that results from…

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Q: 8.0T 7.6 7.2- 6.8 6.4 6.0+ 10 20 30 40 50 60 70 80 90 Temperature (°C) In pure water, some of the…

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Q: Butyric acid, C3H,COOH, has ionization constant of 1.54 x 10-5. a) Calculate the pH of 50.0 mL of a…

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Q: Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.40. You…

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Q: An analytical chemist is titrating 88.9 mL of a 0.2700M solution of ammonia (NH3) with a 0.4900M…

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Q: Phenol, once known as carbolic acid, HC6H5O is a weak acid. It was one of the first antiseptics used…

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Q: Pls help ASAP. Pls show all work and calculations.

A: Balanced Chmical equation for the reaction is as follows: HCl + NaOH ------> NaCl + H2O Both HCl…

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Q: A chemist prepares dilute solutions of equal molar concentrations of CH3 NH2, CH3 NH3 CI, NANO2, and…

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A: Given Volume = 0.4 L molarity = 7 M

Q: A 0.1-L unbuffered solution needs the pH adjusted from 4 to 1. How many microliters of a 12 molar…

A: Calculation of [H+] when pH=4: pH=-log[H+]4=-log[H+][H+]=10-4 Calculation of [H+] when pH=1:…

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Q: A 1-L unbuffered solution needs the pH adjusted from 5.5 to 4. How many mL of 1 molar HCl solution…

A: Given: Volume=1 L pH=5.5 to 4 Molarity of HCl=1 M To find: pH is reduced to 4 Solution: Molarity is…

Q: A1 liter solution is made by adding 0.5983 moles NaH2PO4 and 0.5456 moles NazHPO4. What will be the…

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Q: You add 7.00 mL of 0.100 M NaOH to 50.00 mL of pure water, and to this mixture you then add 12.00 mL…

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Q: A 0.4-L unbuffered solution needs the pH adjusted from 10.0 to 3.0. How many microliters of a 5…

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Q: has a pH of 11.30. How many grams of NaCN are in 865 mL of a solution with the same pH? Kb (CN–) =…

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Q: Clorazepate (abbreviated CZH, chemical formula C16H11CIN epilepsy. It is also a street drug known as…

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A: pH = pKa + log[Conjugate base]/[acid]

Q: what is the pH of a solution made by mixing 30 mL of 0.100 M HCl with 40.0 mL of 0.100 M KOH? Assume…

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Q: Calculate the pH of each of the following strong acid solutions:(a) 0.0167 M HNO3, (b) 0.225 g of…

A: To calculate pH of each of strong acid solutions: (a). 0.0167 M HNO3

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A: NH3 and NH4Cl make a basic buffer solution because NH3 is weak base and NH4Cl is strong acid salt

Q: An analytical chemist is titrating 139.2 mL of a 0.2600M solution of ammonia (NH3) with a 0.5900M…

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A: pH of pyridinium bromide solution = 3.10 Kb for pyridine = 1.7×10–9

Q: Calculate the pH of a 1L aqueous solution that is 0.13 M in NH3 and 0.26 M in NH4NO3 after 0.013 mol…

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Q: Which of the following statements concerning aqueous salt solutions is false? A) For any salt of a…

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Q: A typical vitamin C tablet (containing pure ascorbic acid, H2CgHgOg) weighs 500 mg. One vitamin C…

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