How do you calculate mass of two different solutes in solution? 1ml solution contains 20mg of...
How do you calculate mass of two different solutes in solution? 1ml solution contains 20mg of NaCOCH2CH3 and 40mg of NaBH4. Need to calculate mass and mmol of both.
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How do you calculate mass of two different solutes in solution?
1ml solution contains 20mg of...
1.- Calculate the % yield when you react 20mg of KBrO3 and produce 5 mg of...
1.- Calculate the % yield when you react 20mg of KBrO3 and produce 5 mg of KBr, assume all other reagents are in excess. Balance the equation, Indicate the reactants and the products. (KBrO: Molecular mass: 166.999 g/mol, KBr Molecular mass: 119.002 g/mol) KBrO; + KI + HBr → KBr + H2O a) If you start the reaction with 20mg of KBro; and 20mg of Kl (molecular mass=166.0028 g/mol) with an excess of HBr what is the limiting reagent? b)...
+iodine 1- Calculate the % yield when you react 20mg of KBrO, and produce 5 mg...
+iodine
1- Calculate the % yield when you react 20mg of KBrO, and produce 5 mg of KBr, assume all other reagents are in excess. Balance the equation, Indicate the reactants and the products. (KBrOs Molecular mass: 166.999 g/mol, KBr Molecular mass: 119.002 g/mol) KB O,+ KI HBr KBr+ H,O e a) if you start the reaction with 20mg of KBro, and 20mg of KI (molecular mass 166.0028 g/mol) with an excess of HBr what is the limiting reagent? b)...
You need to produce a buffer solution that has a pH of 5.50. You already have a solution that contains 10 mmol (millimol...
You need to produce a buffer solution that has a pH of 5.50. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The Pka of acetic acid is 4.74.
2. Below is a graph showing transport velocity of two solutes (A and B). Based on...
2. Below is a graph showing transport velocity of two solutes (A and B). Based on the observed kinetics, what conclusions can you draw about the transport mechanisms for each solute? (6) 2007 Transport Velocity 2 100 200 4 10 50 Solute (UM) 3. The reason carrier transport proteins that carry out carrier-mediated diffusion are incapable of active transport is (5) a. The turnover number is different in both "A" and "B" conformations b. Vmax is different in both "A"...
An aqueous solution contains 31% HCl by mass. Calculate the molality of the solution. Express your answer using two sign...
An aqueous solution contains 31% HCl by mass. Calculate the molality of the solution. Express your answer using two significant figures. Calculate mole fraction of the solution. Express your answer using two significant figures.
With this information how would I calculate the pH of .01 M Ammonia solution and the...
With this information how would I calculate the pH of
.01 M Ammonia solution and the pH of .01 M Ammonia buffer
solution
I need
Ph of acetic acid! sorry for the wrong wording!
A. Preparation of Acetic Acid-Acetate Buffer Solution An acetate buffer contains the acid-base pair, acetic acid and the acetate fon (typically added as sodium acetate). For acetic acid, pk, = -log (1.8 10 = 4.74. Consider the con ditions that will yield 100 ml of an...
Calculate the mass of solution (in grams) that contains 6.75gKOH and has a concentration of 20.0%...
Calculate the mass of solution (in grams) that contains 6.75gKOH and has a concentration of 20.0% (m/m) KOH. (The molar mass of KOH is 56.11 gimde 06015dl solution 135g of solution 3235d solution 2418 of solution 7572d solution
Can someone walk through a few simple algebraic solution-making problems? I know how to use formulas,...
Can someone walk through a few simple algebraic solution-making problems? I know how to use formulas, such as C1V1 = C2V2, however I'm having issues with the conceptual part, mostly for when using two solutes. Problem #1: Make 200 mL of a saline that has 5 mMol NaCl and 15 mMol KCl. Stocks are 0.1 M NaCl & 0.2 M KCl. (and if it's simply the C1V1=C2V2 of one, and then the second, added together in a 200 mL flask...
You need to produce a buffer solution that has a pH of 5.270. You already have...
You need to produce a buffer solution that has a pH of 5.270. You already have a solution that contains 10.0 mmol (millimoles) of acetic acid. How many millimoles of sodium acetate will you need to add to this solution? The pK a of acetic acid is 4.752.
You are required to make a solution that contains 50 mmoles of buffer (its molecular mass...
You are required to make a solution that contains 50 mmoles of buffer (its molecular mass is 121.1 g/mol), 300 mmoles of sodium chloride (its molecular mass is 58.44 g/mol), and 10% glycerol in a total volume of 0.75 L. Tell me (A) what weight of buffer and NaCl you will need, and (B) what volume of glycerol (diluted from a 100% stock concentration) you will need. Also, (C) what then makes up the additional volume to 0.75 L, and...
1.- Calculate the % yield when you react 20mg of KBrO3 and produce 5 mg of KBr, assume all other reagents are in excess. Balance the equation, Indicate the reactants and the products. (KBrO: Molecular mass: 166.999 g/mol, KBr Molecular mass: 119.002 g/mol) KBrO; + KI + HBr → KBr + H2O a) If you start the reaction with 20mg of KBro; and 20mg of Kl (molecular mass=166.0028 g/mol) with an excess of HBr what is the limiting reagent? b)...
+iodine
1- Calculate the % yield when you react 20mg of KBrO, and produce 5 mg of KBr, assume all other reagents are in excess. Balance the equation, Indicate the reactants and the products. (KBrOs Molecular mass: 166.999 g/mol, KBr Molecular mass: 119.002 g/mol) KB O,+ KI HBr KBr+ H,O e a) if you start the reaction with 20mg of KBro, and 20mg of KI (molecular mass 166.0028 g/mol) with an excess of HBr what is the limiting reagent? b)...
2. Below is a graph showing transport velocity of two solutes (A and B). Based on the observed kinetics, what conclusions can you draw about the transport mechanisms for each solute? (6) 2007 Transport Velocity 2 100 200 4 10 50 Solute (UM) 3. The reason carrier transport proteins that carry out carrier-mediated diffusion are incapable of active transport is (5) a. The turnover number is different in both "A" and "B" conformations b. Vmax is different in both "A"...
With this information how would I calculate the pH of
.01 M Ammonia solution and the pH of .01 M Ammonia buffer
solution
I need
Ph of acetic acid! sorry for the wrong wording!
A. Preparation of Acetic Acid-Acetate Buffer Solution An acetate buffer contains the acid-base pair, acetic acid and the acetate fon (typically added as sodium acetate). For acetic acid, pk, = -log (1.8 10 = 4.74. Consider the con ditions that will yield 100 ml of an...
Calculate the mass of solution (in grams) that contains 6.75gKOH and has a concentration of 20.0% (m/m) KOH. (The molar mass of KOH is 56.11 gimde 06015dl solution 135g of solution 3235d solution 2418 of solution 7572d solution
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