The pH of a 1.25 x10-3 M NAOH solution is: O a 7 b 2.90 3.10 O d 11.10 O e 10.90

Q: how much copper ion remains at equilibrium?

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Q: How many moles of Na,SO4 are in 100.0 mL of a 0.2500 M solution ? The GFW is 142.07 g. O A. 0.0500…

A: 0.25 M Na2SO4 solution. Molarity = number of moles in 1L of solution So, 0.25 moles of Na2SO4 in 1 L…

Q: The density of a substance is 3.596 g/ml and has a weight of 32g. What is the volume?

A: Volume is defined as the total space occupied by a substance. Density can be defined as the…

Q: 40.00 mL of 0.1100 M HCl is diluted to 100 mL with H2O and titrated with 0.1M NaOH. Calculate the pH…

A: pH is generally a method to find acid or base. The ranges from 0 to 14, with 7 being neutral. pHs of…

Q: Based on the ternary phase diagram, a binary mixture of furfural and water will always split into…

A: * Ternary diagram is triangular coordinate system with axes at edges these are used to plot three…

Q: There are several different units that biochemists use to describe the concentration of a solution.…

A: BSA means bovine serum albumin. Given Values: Mol. wt of BSA = 80000 Dalton or 80 kD Weight of the…

Q: You have a 62% dextrose solution. How many mL will give you 35 g of dextrose?

A: Carbohydrates are molecules that include carbon, hydrogen, and oxygen and have the formula (CH2O)n.…

Q: You are given a solution of 0.117 M NaOH solution.  You need to neutralize 10.00 mL of the NaOH…

A: In order to calculate the molarity of potassium hydrogen phosphate, KHP, we either follow a direct…

Q: BSA mg/ml O.D. 550nm 1 0.12 2 0.23 3 0.34 4 0.41 5 0.52 Use the values above to draw a graph

A: BSA  Bovine serum albumin is a albumin protein which is extracted from cow  and used in experimental…

Q: The substance oxygen has the following properties: normal melting point: 54.8 K normal boiling…

A: There are three most common states of matter: solid, liquids, and gases. These states of matter can…

Q: Find the molarity of a solution that is made by dissolving 76.54g NaCl in enough water to make a…

A: Molarity is used to describe the concentration of a solution. It is the number of moles of solute…

Q: Determine the pH for the following solutions.  {H3O+}=2.4x10^-2 M

A: p in pH denotes negative of the logarithm(-log). So pH is negative logarithm of molarity of H pH…

Q: What is the pH of a solution that has an H¯ concentration of 1.75 x 10° mol/L

A: pH is the measure of the acidity or basicity of a medium.  It is measured as the negative logarithm…

Q: 1. Calculate the pH of the following solutions: A. [H+] = 1.36 x 10-9 M B. [OH] = 3.86 x 10-8 M 2.…

A: 1A- ph= -logH+ = -log  1.36 × 10^-9 = 9- log 1.36 pH=9-0.133 = 8.867   1B-  pOH = -logOH- = -log…

Q: 4. 25.0 mL of an unknown acidic solution was titrated with 42.7 mL of a 0.15 M NaOH solution. What…

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Q: How many grams of NaOH would you need to make 7,252 mL of a 230 mM NaOH solution (m.w. = 40.00…

A: Answer- Here molarity of the solution is provided and requires the amount of weight of NaoH.

Q: Calculate the percent by mass of a solution that is prepared by dissolving 385 grams of potassium…

A: Weight percentage %= [Weight of solute]/Weight of solvent+ Weight of solute x 100

Q: A 500 mL sample of a 0.100 M formate buffer, pH 3.75, is treated with 5 mL of 1.00 M KOH. What is…

A: The buffer solution consists of an acid and a salt of the conjugate base of the acid in a solution.…

Q: . Adding as little as 0.1 mL of concentrated HCl to a liter of H20 shifts the pH from 7.0 to 3.0.…

A: Acetic acid and sodium acetate is an example of the acid - base buffer, in order to understand how…

Q: How much magnesium chloride hexahydrate (MW = 203.3 g/mol) is required to make a 500 mL solution ata…

A: MW = 203.3 g/mol Concentration = 10 mmol/L Volume = 500 ml solution = 500/100 L = 0.5 L

Q: 5. A 0.8720 g sample consisting solely of sodium bromide and potassium bromide yields 1.505 g of…

A: NaBr is sodium bromide KBr is potassium bromide  AgBr is silver bromide Molecular weight, Na=23…

Q: How many grams of sodium chloride are needed to make 0.60L of 2.3M sodium chloride solution

A: The concentration of a solution is expressed in molarity. Molarity is defined as the number of moles…

Q: You made a buffer solution by combining 250.0 mL of a 0.20 M sodium acetate solution with 50.0 mL of…

A: Given Values: Volume and concentration of the sodium acetate = 250 m and 0.20 M Volume and…

Q: The OH ] of a solution can be determined from the pOH using the equation OH"]= 10" POH

A:

Q: 1M = 1 mole/L. To determine how many grams of a substance is equal to one mole the molecular mass is…

A: C₁ = the original concentration of stock solution  V1= the volume of stock solution needed to make…

Q: а. 1.3 b. 2.3 C. 3.3 d. 4.3 termine the pH of a 0.50 M NAH2PO4 and 0.10 M Na2HPO4 solution pka is…

A:

Q: A 510 mL IV bag contains a 25% dextrose solution. How much of the original solution must be replaced…

A: During IV transfusion and medicine administration, the concentration of the drug in a solution must…

Q: You need to prepare 1L of a 5×TE stock solution (1×TE buffer:10mM Tris,1mM EDTA).How much of Tris…

A: The mole is used as a unit in the SI system to quantify the amount of substance present. One mole is…

Q: To form S²⁻ ions from gaseous sulfur atoms requires 214 kJ/mol, but these ions exist in solids such…

A: The lattice energy is the amount of energy required in the formation of crystalline lattice of…

Q: Estimate the pH of a 7.18 x 106 MHF solution. You can calculate the lowest possible pH, knowing that…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The liquids butan-1-ol and butanal have similar molar masses. Which is expected to have the higher…

A: The boiling point of a substance or molecule is the temperature at which the pressure exerted by the…

Q: What is the final volume of NaOH solution prepared from 100.0 mL of 0.500 M NaOH if you wanted the…

A: The solution is a homogenous mixture of two or more components mixed together. It has two…

Q: Which of the following aqueous solutions has the lowest pH: 0.1 M HCl; 0.1 M acetic acid (pKa =…

A: pH is used to specify the acidity or basicity of an aqueous solution. It measures the hydrogen ion…

Q: Lisa and Jisoo wanted to prepare 150 mL of 0.650 M malonate buffer pH 5.00 by mixing NaC4H304 and…

A: Buffers are aqueous solutions that are made up of weak acid and its conjugate base or a weak base…

Q: A solution is made by mixing 56.9 g of water and 23.8 g NaCl. What is the concentration of NaCl in…

A: Given Values: Weight of the water = 56.9 grams Weight of NaCl = 23.8 grams

Q: Define the following terms: a. hydronium ion b. acid c. base d. Ka e. pKa

A: In the solution, when a compound reacts, there is a formation of the product. In the chemical…

Q: A KCC student titrated 100.00 mL of a NaOH solution using 55.00 mL of a 0.1000M H2SO4 solution. How…

A: The reaction of an acid with a base is called an acid-base reaction. It is also called a…

Q: A 35 mL of solution of hydrochloric acid is neutralized by 15 mL of 0.5 M potassium hydroxide. What…

A: Hydrochloric acid is the strongest base that will react with potassium hydroxide to produce water…

Q: How many moles of Nal would be found in 250mL of a 4.5 M solution? Write your answer with three…

A: Molarity (M) is calculated as the number of moles of solute per liter of solution (moles/Liter).

Q: What is the concentration in % (w/v) of a solution prepared from 50.0 g NaCl and 2.5 L of water? A.…

A: Percentage: The calculation of percentage is one of the simplest and most useful of mathematical…

Q: Make a 100 ml of a 1M stock solution of NaCl (you will need the molecular weight of NaCl).

A: molecular weight of Back is 58.4 Molarity (M) is the amount of a substance in a certain volume of…

Q: Ethyl mercaptan is an odorous substance added to natural gas to make leaks easily detectable. A…

A: Given: Ethyl mercaptan is an odorous substance added to natural gas to make leaks easily detectable.…

Q: An aqueous solution is 3.50 % by mass hydrochloric acid, HCl, and has a density of 1.02 g/mL. The…

A: Mole fraction is expressed in the terms of moles. It is can be calculated from the formula that is…

Q: In order to make a solution of the concentration 0.364 M, what mass of NaCl should be dissolved in…

A: The number of moles of a solute dissolved in one liter of solution is called molarity.

Q: Calculate the followings:  The pH of the final solution after adding 300 ml of 40 mM NaOH to 600 ml…

A: pH is the scale that is used to specify the acidity or basicity of an aqueous solution. Acidic…

Q: You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contains 2.70 L of solution,…

A: Given: v/v % of methyl alcohol solution =18.5 % The volume of the solution = 2.70 L To Calculate:…

Q: How many H2O particles were produced by creating the following structure? R H R R -N-Ç, H-N-C,- H H…

A: Extention of a polypeptide chain is a typical dehydration reaction where OH from carboxyl group and…

Q: What is the pH of an aqueous solution with {H3O+} = 6x10-12

A: pH is logarithm of the reciprocal of the H+  or H3O+ ion concentration in a solution that is…

Q: what is the pH of a 0.0250 M solution of calcium Hydroxide? A) 12.40 B) 1.60  C) 1.70 D) 12.30

A: pH of a solution represents amount of hydrogen ions present in the solution which in turns…