If you mix 9 g of NaOH with 90 mL of water, what is the mass/volume (g/mL) concentration of the solution?

Q: how much copper ion remains at equilibrium?

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Q: How much of a 10x buffer should be added to 900ml of water to make a 1x solution?

A: In this question, we are given with- 1. Concentration of stock solution= 10X 2. Required…

Q: 1) What is the prefix that is used when we are expressing 1/1000 of the unit?

A: Units are measured as metric units based on the International System of Units or SI. The units and…

Q: Indicate whether a solution will have more OH- or H+if the value of the solution is 10

A: The pH of the solution determines the acidity or basicity of the solution by measuring the molar…

Q: A beaker with 1.40x102 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The…

A:

Q: What is the molarity of a 30% solution of NaCI

A: Let us first define the percentage solution : 30% NaCl solution= 30% w/v solution = 30g/100 ml.Since…

Q: You record the absorbance of your unknown BSA sample at 0.276. What is the concentration in ug/mL of…

A: Standard curve can be used to determine the concentration of unknown sample by determining their…

Q: Your patient drank the following liquids for breakfast: 220 ml of orange juice, 180 ml of milk and…

A: Fluid intake is essential for the proper functioning of the body. It helps maintain the balance of…

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: 0.47 absorbance/ 4713.6 mol/L = In scientific notation please & 0.57 abosorbance/4713.6 mol/L=

A: Beer-Lambert law states a linear relationship between concentration and absorbance. When…

Q: You have a 1000X stock solution of sodium chloride (NaCl). The concentration of NaCl in the stock…

A: Sodium chloride (NaCl) is a salt made of an equal composition of sodium and chloride ions. NaCl is…

Q: Which of the following represents a Buffer solution?

A: Buffer solution can be defined as the solution which resists changes in pH when acid or alkali is…

Q: What is meant by the term “two-dimensional fluid”?

A: Answer: Introduction: In 1972, Singer and Nicolson proposed the fluid mosaic model of the plasma…

Q: Define buffer.

A: An aqueous solution that comprises of a weak acid and its conjugate base's mixture or a weak base…

Q: What is the pH of an aqueous solution of 7.37x10-2 M potassium hydroxide? PH =

A: Introduction  A solution's pH value indicates how basic or acidic it is. It is based on the quantity…

Q: You have started with 0.37 g of an unknown acid. You follow the procedure outlined in the video…

A: The scale which is helpful for measuring the acidic nature or basic nature of aqueous solutions is…

Q: You need to use a dilute hydrochloric acid solution in an experiment. However, the only bottle of…

A: The  pH scale is a scale used to specify the acidity or basicity of an aqueous solution. A strong…

Q: You have 150 g of dextrose available and you need to compound a 20% solution. If you use the entire…

A: When we describe a concentration as a percentage without specifying the type of formula, we imply…

Q: How will you dilute 100 μl of 25 mg/ml BSA into a final concentration of 2 mg/ml BSA?

A: BSA stands for bovine serum albumin. It has several applications in laboratories. In a microbial…

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: What is the concentration of hydrogen ions [H+] in a solution that has a pH of 2? (write out using…

A: The pH, a standard unit that is used to specify whether an aqueous solution is acidic or basic, is…

Q: How many grams of NaOH would you need to make 3,982 mL of a 3 M NAOH solution (m.w. = 40.00 g/mol)?…

A: By the concept of molarity, we can determine the concentration of a solution. It is the total number…

Q: our patient drank the following liquids for breakfast;220 ml of orange juice,180 ml of milk and 150…

A: Nutrition is a process in which an organism uses food to support its life as food provides energy…

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: What is the pH of 0.4 M formic acid (weak acid) solution? (Ka = 1.77 x 10-4 M)

A:

Q: Michelle's doctor orders 0.044 g of chlorpromazine, which is used to treat nausea. If the stock…

A: 1 gm is equivalent to 1000 milligrams. Hence,

Q: Convert the following to mL or μl: 700 μl 50 μl (approximately 1 drop of water) 2000 μl 5 ml 3x 106…

A: 1 mL = 1000 µL 1 µL = 0.001 mL

Q: föllowing would dispersion forces be the most important factor in determining physical properties in…

A: The London dispersion forces are defined as the weakest existing intermolecular forces. It is a…

Q: You want 235mL of a solution that consists of 10% BSA, 2.37mM KCl and 120µM EDTA.  You have stock…

A: BSA is a globular proteins which is a well studied proteins and used as standard protein molecule in…

Q: When 0.5 mol of a certain ionic substance is dissolved in 1.0 kg of water, the freezing point of the…

A: The physical properties (freezing and boiling point) of a solvent caries n addition of solute. The…

Q: You have a 100X stock of a buffer. You need 100 ml of 1X buffer.  How much buffer solution do you…

A: Stock solutions of the standard concentration are present in the laboratories. Using these stock…

Q: Calculate pH of buffer prepared by mixing; 10ml of 0.10M of CH3COOH and 20ml of 0.10M of CH3COONa.

A: A buffer is defined as the mixture of a weak acid and its conjugate base or weak base and its…

Q: What is the pH of a buffer that contains 0.9 M ammonia and 0.3 M ammonium ion? (Ka for ammonium ion…

A: The objective of this question is to calculate the pH of a buffer solution containing ammonia and…

Q: 12 grams of glucose will make how many mL of a 0.5 g/mL solution?

A: Given Values: Weight of glucose = 12 g Concentration = 0.5 gml How much volume of water needs to…

Q: If a 1.20 L of strawberry wine is 10.5% alcohol by volume, how many ml of the solution is ethanol?

A: Wine is an alcoholic beverage produced from honey, fruits like grapes, pineapple, strawberry, etc.…

Q: What is the pH of a 6.7 × 10⁻⁶ M HBr solution?

A: Hydrobromic (HBr) acid is considered a strong acid, which means it gets completely dissolved into an…

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: A 196 g saturated solution has a solubility of 96.0 g/100 g water. If somebody sneakily sip 6 g of…

A: Solubility represents the maximum amount of a substance that dissolves in a given amount of solvent…

Q: A buffer solution contains an equal concentration of weak acid HX and its conjugate base ion X™. The…

A: The objective of the question is to calculate the pH of a buffer solution containing equal…

Q: What mass in grams of dextrose and sodium chloride are required to prepare 250 mL of D10 NS…

A: Introduction: The term molar mass is defined as the mass of one mole of a substance. It is…

Q: A patient is prescribed 15mmol of potassium chloride injection. The ampoule contains 20mmol in 10ml.…

A: Given data    A 10 ml ampule contains = 20 mmol