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February 9, 2016

Search: What is the molality of a glucose solution prepared by dissolving 18.0 g of glucose, C6H12O6, in 125.9 g of water?

Number of results: 42,234

Molarity
Determine the molarity and normality of a solution prepared by dissolving 55 mg of sodium bicarbonate (NaHCO3) in 750 mL of water.
January 14, 2010 by joe

Chemistry
If a saturated solution prepared by dissolving solid BaSO4 in water has [Ba2+]= 1.04*10^5M, what is the value of Ksp for BaSO4?
February 8, 2011 by Melissa

Chemistry
A 500.0-mL sodium iodide (NaI) solution was prepared by dissolving 37.7g of solid NaI in water. Chlorine gas was bubbled through a 100.0-mL sample of this solution until the reaction was complete. How many grams of molecular iodine were produced?
November 6, 2009 by L

chemistry
this is a really long question. i don't understand how to answer it. help please. A 10.0% aquueous solution of sulfuric acid has a density of 1.0661 g/mL at 20 degrees celsius. A. how many grams of H2SO4 are found in 50.0 g of this solution? B. how many grams of water are ...
April 7, 2013 by Nicole

AP Chem
What is the freezing point in degrees Celsius of a solution prepared by dissolving 11.3 (g) of calcium nitrate in 115 (g) of water? K of f for water is 1.86 degrees Celsius/m
January 22, 2013 by Anonymous

Science
The vapor pressure of water at 25 oC is 23.8 torr. Calculate the vapor pressure of a solution prepared by dissolving 35.0 g of urea [(NH2)2CO] in 75.0 g of water at 25 oC.
February 17, 2013 by Carlos

Chemistry105
1. (a) What is the molarity of a solution prepared by dissolving 4.315 g of NaOH in water to exactly 100 mL in a graduated flask? (Na = 23.0; O = 16.0' H = 1.0 amu).    (b) What volume of the above solution is required to neutralize exactly 25.00 mL of 0.1500 M HCl solution...
December 4, 2012 by Mira

Science
Which of the following is true about diabetes? A. The pancreas overproduced glucose, and so insulin must be injected to reduce glucose levels. B. The pancreas underproduced glucose, and so insulin must be injected to increase glucose levels C. The pancreas overproduced insulin...
February 12, 2015 by Anonymous

Chemistry
What is the structural formulae for the hydrolysis of lactose? Lactose is a disaccharide that consists of â-D-galactose and â-D-glucose molecules bonded through a â1-4 glycosidic linkage. So if you are referring to the hydrolysis to the individual saccharides then you need to ...
April 2, 2007 by Desmond

bio - cell and molec
for what values of delta G would the following reactions have? (no numerical value, just positive or negative) a. ATP -> ADP + P(subscript i) b. ADP + P(subscript i) -> ATP c. Glucose -> Pyruvate d. glocose -> oxygen e. starch -> glucose
April 1, 2009 by han

Chemistry
What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water? The molal freezing point depression constant for water is 1.86°C/m. (Note that when Ca(NO3)2 dissolves in water Ca2+ and NO32- ions are produced).
May 25, 2012 by Henry

science
solution A was prepared by dissolving 0.63g of HNO3 in 100cm3 solution. Solution B is a sodium calcium hydroxide solution of unknown concentration. state a balanced chemical equation for the reaction
August 25, 2015 by Zoe

glucose monitors
In my class, we have to research on glucose monitors and pick two disadvantages and find a way to solve those disadvantages. The teachers know the students are not expert on designing a new product but using creativity, we have to come up with solutions For example: I put that...
October 9, 2007 by kelly

chemistery
the mass percent of a solution prepared by dissolving 0.500 moll KCL ( Molar mass = 74.6 g) in 850 g of water is ?
December 9, 2012 by ogb

Chemistry
Sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. The densities of Na(s) and Hg(l) are 0.97 g/cm3 and 13.6 g/cm3, respectively. A sodium amalgam is made by dissolving 1.0 cm3 Na(s) in 20.0 cm3 Hg(l). Assume that the final volume of the ...
December 11, 2011 by bernan

Chmistry
Sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. The densities of Na(s) and Hg(l) are 0.97 g/cm3 and 13.6 g/cm3, respectively. A sodium amalgam is made by dissolving 1.0 cm3 Na(s) in 20.0 cm3 Hg(l). Assume that the final volume of the ...
December 13, 2011 by bernan

Chemistry 102
What is the freezing point in ∘C of a solution prepared by dissolving 6.60 g of MgCl2 in 110 g of water? The value of Kf for water is 1.86 (∘C⋅kg)/mol, and the van't Hoff factor for MgCl2 is i = 2.7.
September 23, 2015 by Dee

Chemistry: Freezing point
An aqueous solution is prepared by dissolving 1.08 g of human serum albumin, a protein obtained from blood plasma, in 50.0 mL of water. The solution has an osmotic pressure of 0.00770 atm at 298 K. What is the molar mass of the albumin? Answer: 6.86 x 10^4 g/mol
February 25, 2013 by JJ

chemistry
calculate the molarity of each of the following solution: 2.00 mol glucose in 4.00 L solution.
June 25, 2010 by Ana

chemistry
calculate the molarity of each of the following solution: 2.00 mol glucose in 4.00 L solution.
June 25, 2010 by Ana

Chemistry
A solution has a volume of 2L and contains 36g of glucose, what is the molaritiy of the solution?
April 19, 2011 by Bobbi

chemistry
If you have 2 moles of glucose in 8 liters of solution, what is the molarfity of this solution?
March 11, 2012 by idk

chem
A solution is prepared by dissolving 15.0 g of pure HC2H3O2 and 15.0 g of NaC2H3O2 in 600 mL of solution (the final volume). What is the pH of the solution?
February 22, 2015 by Jen

mcckc.edu
A 0.10MNaCl solution is blank (iso/hypo/hypertonic) to a 0.10M glucose solution
January 29, 2011 by paulina

Math
A pharmacist is to prepare a 50 fluid ounce solution that contains 54% glucose. The pharmacy has a 30% solution and a 90% solution on hand. How many ounces of each solution should be mixed to prepare the desired perscription?
February 26, 2010 by Madison

chemistry
What is the pH of a buffer system prepared by dissolving 10.70 grams of NH4Cl and 25.00 mL of 12 M NH3 in enough water to make 1.000 L of solution? Kb = 1.80 x 10-5 for NH3.
January 16, 2011 by emoni

Chemistry
What is the percent ionization of a solution prepared by dissolving 0.0286mol of chloroacetic acid, in 1.60L of water?for choloroacetic acid, Ka=1.4x10^-3
March 22, 2013 by Bb

Chemistry (science)
I dont know how to answer this. An aqueous solution of glucose has a freezing point of -0.37. What is the concentration of the solution?
August 26, 2012 by Camela

Chemistry
Is the boiling point of 0.01 m potassium fluoride solution higher or lower than that of 0.01 m glucose solution? Explain
December 8, 2014 by Sean

chemistry
if you have 2 mol of glucose in 4L of solution, what is the molarity of the solution?
April 28, 2011 by lilly

Biology
If .03 M of sucrose and .02 M of glucose rest inside a cell and .01 M of sucrose, glucose, and fructose rest outside in the environment, which solutes will exhibit next diffusion into the cell and out of the cell?
February 15, 2007 by Bioq

biology help plz?????????????????
Complete the following paragraph relating to the enzyme, β–galactosidase. This enzyme hydrolyses the disaccharide lactose to constituent monosaccharides, galactose and glucose. Drag and drop the appropriate words into the correct space. For white spaces in the sentences ...
February 28, 2013 by centya

Chemistry
How many grams of CaCl2 * 6H2O are required to make 500 milliliters of a solution having the same concentration of Cl- as one that was prepared by dissolving 75.6 grams of NaCl in enough water to make exactly 1 liter of solution?
January 20, 2015 by Anonymous

chemistry
the vapor pressure of carbon sulfide is 355.6 torr at 25 degrees Celsius. what is the vapor pressure of a solution prepared by dissolving 12.52 g naphthalene (C10H8, 128.2 g/mol) in 125.0 mL CS2 liquid (76.14 g/mol, 1.261 g/mL)? Assume the solution obeys Raoult's law, and ...
March 4, 2015 by alexis

chemistry
wHAT IS THE MOLALITY OF A SOLUTION MADE BY DISSOLVING 43.3 GRAMS OF SODIUM CHLORIDE?
October 6, 2010 by bErNaDeTtE

Chemistry
Raoult's Law and Ionic or Organic Solutions At 55.0 C, what is the vapor pressure of a solution prepared by dissolving 62.8 g of LiF in 247 g of water? The vapor pressure of water at 55.0 C is 118 mmHg. Assume complete dissociation of the solute.
January 25, 2010 by Saira

Chemistry
1. The standard heat of formation of glucose and lactic acid are -1274.45 and -694.04 kJ/mole, respectively. The molar heat capacity of the two compounds are 218.86 and 127.6 J/(mol)K a.) What is the total heat of reaction at 25 degree Celsius for the formation of lactic acid ...
November 19, 2006 by Kimmy

Chemistry
The boiling point of pure water in Winter Park, CO ( elev. 9000 ft) is 94 oC. What is the boiling point of a solution containing 11.3 g of glucose (180 g/mol) in 55 mL of water in Winter Park? Kb for water = 0.512°C/m.
October 11, 2015 by JPR

chemistry
1. Find the molality of the solution prepared by dissolving 0.238g toluene, C7H8, in 15.8g cyclohexane 2. A pure sample of the solvent phenol has a freezing point of 40.85 degrees C. A 0.414 molal solution of isopropyl alcohol was observed to have a freezing point of 38.02 ...
February 9, 2015 by kales

confirmation of multiple choice questions biology
1. The net gain of ATP after glycolysis is .. A) two B) four C) 34 D) 36 I think it's A. 2. During photosynthesis water .. A) is made B) breaks down C) is not necessary I put B. 3. The most immediate effect of chloroplasts with non-functioning thylakoids is that .. A) glucose ...
December 29, 2007 by Angela

chemistry
0.0386mol glucose in 88.0ml of solution
December 8, 2012 by cynthia

Chemistry
A stock solution was prepared by dissolving exactly 0.4000 g of pure ASA (180.16g/mol) in 10.00 mL of NaOH and heating the solution to a gentle boil. After cooling to room temperature, the solution was poured into a 250 ml volumetric flask and diluted to the mark with DI water...
February 3, 2008 by Anonymous

Chemistry
How would you find the pH of a solution prepared by mixing 50 mL of 0.125 M KOH with o.050 L of 0.125 M HCl?
April 16, 2012 by Anne

chemistry
C6H12O6(s) +6CO2(g) +6H2O9g) 1) given 2 moles of glucose and 14 moles of O2, how many moles of CO2 could be produced? 2) which is the limiting reactant ? 3) how many moles of the excess reactant remain?
May 23, 2010 by Mickey

Chemistry 110, college
A solution is prepared by dissolving 56.5g of ethylene glycol in 874 g of water. Calculate the change in the boiling point and the freezing point.
April 22, 2013 by Holly

chemisrty
Q1) A solution of ascorbic acid (C6H8O6, Formula mass = 176 g/mol) is made up by dissolving 80.5 g of ascorbic acid in 210 g of water, and has a density of 1.22 g/mL at 55 oC. Calculate the following: a) the mass percentage of ascorbic acid b) the mole fraction of ascorbic ...
January 16, 2012 by lyan

Biochemistry
Muscle Hexokinase has a lower Km for glucose than live Hexokinase They both work best on Glucose, and convert Glc->Glc-6-P04. Would you expect their 3D shape to be identical? If not, how different would you expect them to be? Explain your answer. Thanks!
January 26, 2013 by Biochemistry

chemistry
What is the osmotic pressure in torr of a 0.0155 M glucose solution at body temperature ( 35.7 °C)? What are the boiling and freezing points for the same solution?
April 22, 2013 by Ali

chemistry
A saturated solution is prepared by dissolving 3.2 g of a salt in 9.10 g of water to yield a saturated solution. What is the solubility of the salt (in g salt/100g of H2O)?
March 18, 2012 by Riley

biochemistry
What is the composition of 17 g glucose in 375 ml solution in % (w/v)? 1. 22.1% 2. 4.53% 3. 2.21% 4. 0.453% 5. 17%
February 16, 2011 by Anonymous

general, organic and biochemistry
when a solution prepared by dissolving 4.00g of an unknown monoprotic acid in 1.00L of water is titrated with 0.600M NaOH, 38.7mL of the NaOH solution is needed to neutralize the acid. What was the molarity of the acid solution? what is the molecular weight of the unknown acid?
November 23, 2010 by Ksolo

chemistry
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 17.65 mL to reach a phenolphthalein end point. What is the molarity of...
April 4, 2013 by Ashley

Chemistry
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 24.71 mL to reach a phenolphthalein end point. What is the molarity of...
June 6, 2014 by Katie

Chemistry
A saturated Ni(OH)_2_ can be prepared by dissolving 0.239 mg of Ni(OH)_2_ in water to make 500.0 mL of solution. What is the Ksp for Ni(OH)_2_?
March 15, 2012 by Shane

chemistry
A stock solution was prepared by dissolving exactly 0.4000 g of pure ASA (180.16 g/mol) in 10.00 mL of NaOH and heating the solution to a gentle boil. After cooling to room temperature, the solution was poured into a 250-mL volumetric flask and diluted to the mark with DI ...
January 28, 2010 by Tasha

chem(freezing point)
please help! I am lost! Question: Find the expected freezing point of a water solution that contains 286g of aluminum nitrate (Al(NO3)3) in 8.5 kg of water. answer in celcius Note the correct spelling of Celsius. delta T = i*Kf*m Determine the molality of 286 g Al(NO3)3 in 8.5...
May 29, 2007 by Anonymous

chemistry
What is the molarity (mol/dm3) of a solution prepared by dilution of 0.125 moles of sodium chloride (NaCl) to 2.50x102 mL with water?
May 5, 2014 by Josh

chemistry
What is the molarity (mol/dm3) of a solution prepared by dilution of 0.125 moles of sodium chloride (NaCl) to 2.50x102 mL with water?
May 5, 2014 by pippiserra

Chemistry
I need to find the boiling point, but I am confused on this question 0.250M glucose in water (assume the density of water is 1.00 g/ml)
February 15, 2013 by Please please helppppp!!!!!

chemistry
Calculate the molarity of a solution prepared by dissolving 25.0 g NaCl in 1.0 L solution.
April 6, 2011 by Marilyn

Chemistry Class
What is the molality of a solution made by adding 0.145 g of sodium acetate to 119 ml water? How do I find molality?
November 1, 2012 by Trina

chemistry
Questions 2-3 refer to : 〖KClO〗_3 + C_6 H_12 O_6 = KCl + 〖CO〗_2 + 〖H〗_2O? 2. Balance the equation. How many mole of potassium chlorate react with 0.250 mole of glucose How many grams of carbon dioxide are formed. How many grams of ...
April 20, 2012 by jhong

About Chemistry
The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of water at 25 °C above a solution prepared by dissolving 35 g of urea (a nonvolatile, non-electrolyte, MW = 60.0 g/mol) in 75 g of water. im not sure about the steps for problems like ...
September 15, 2010 by BEN

Biology
Which of the following are the final by-products of glucose oxidation during aerobic cell respiration? A. ATP only B. heat only C. carbon dioxide only D. both ATP and heat only E. ATP, heat, and carbon dioxide I know that the following equation is true of the oxidation of a ...
September 28, 2009 by Billy

chemistry is this answer right
115 grams of KCl is dissolved in 750 ml of water. what are the molality, molarity, mole percent, % mass, ppm by mass. what would the freezing point and boiling point of that solution assuming Kf of water is 1.86 degree celsius/m and Kb is .0512 degree celsius/m chemisty - ...
February 8, 2011 by shaknocka lewis

chem
A solution is prepared by dissolving 25 grams of sodium sulfate in enough water to give a total volume of 500. mL. The molar mass of sodium sulfate is 142 grams per mole. What is the molarity of the solution?
November 14, 2012 by jennifer

Chemistry
which is more soluble in water: cyclohexane or glucose?
January 30, 2012 by Jeremy

chemistry
What is the molarity of a solution prepared by dissolving 8.5 g NaCl in enough H2O to give 600 ml of solution?
October 27, 2010 by mica

Chemistry
Calculate the molarity of a solution prepared by dissolving 10.0 grams of NaOH and then diluting the solution to 500mL.
November 8, 2015 by Anonymous

chemistry
how many grams of glucose are required to produce 50mL of 0.1 m solution?
December 3, 2008 by kelsie

cell biology
What is the mass of 2.00 L of an intravenous glucose solution w/ a density of 1.15 g/ml?
February 25, 2011 by Ann

chemistry
The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 mL of 0.125 M HCl is __________. i know the answer is 7.00, but im not sure how to solve it, do i create an ice chart?
November 23, 2010 by laney

Chemistry
A solution is prepared by dissolving 10.0 moles of Na2SO4 solid in 0.500 kg H2O. what is the vapor pressure of the solution at 30 C?
September 5, 2009 by Tammy

Biochemistry
Based on free energies of hydrolysisgiven below, for each of the followingreactions: i)Determine the overall ∆G of thereaction ii)State whether it is favorable(spontaneous)as written ∆Ghydrolysis Phosphocreatine   '43.1kJ/mol ...
April 18, 2013 by Riley

chemistry - vapor pressure
the vapor pressure of pure water at 25C is 23.8 torr. determine the vapor pressure (torr) of water at 25 C above a solution prepared by dissolving 35g of urea (a nonvolatile, non-electrolyte, MW = 60.0G/MOL) IN 76G of water. answer:21 i just want to know the steps bc im ...
September 13, 2010 by billy

college: Chemistry
Hi can someone help me with this other problem from my homework, The thermochemical equation is C6H12O6(s)+ 6O2(g)--> 6CO2(g)+ 6H2O(g) reaction is -2539.01 kJ/mol Part B) What is the minimum number of photons with wavelength of 645nm needed to prepare 135 grams of glucose? ...
February 10, 2009 by Shylo

chem class
The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 mL of 0.125 M HCl is __________. i know the answer is 7.00, but im not sure how to solve it, do i create an ice chart?
November 24, 2010 by laney

chemistry
compute for the pOH of a solution prepared by dissolving 5.50g KOH in enough to make a 100.0mL solution
February 13, 2012 by valerie faylogna

Chemistry
The media you need has .9% NaCl and 2% glucose. How would you make 1 L of this solution?
September 11, 2011 by Anonymous

chemistry
what is the molarity of an aqueous solution that is 6.75% glucose by mass? Assume a density of 1.03 g/ml
November 6, 2011 by swtnblk

chemistry
How many moles of glucose would be present in: 1Litre of a 5micromolar solution?
December 3, 2012 by Christina

chemistry
why spectrophotometric bioassay indirectly determine the concentration of glucose in solution
March 26, 2013 by amin

Chemistry
A solution is prepared by dissolving of pure HC2H3O2 and of NaC2H3O2 in of solution (the final volume). (a) What is the pH of the solution? (b) What would the pH of the solution be if of 0.250 M NaOH were added? (c) What would the pH be if of 0.40 M HCl were added to the ...
February 22, 2015 by Liam

Chemistry
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, calculate molality. Then molality x kg ...
February 11, 2008 by Lauren

chemistry
What would be the pH of a solution of hy- poiodous acid (HOI) prepared by dissolving 144 grams of the acid in 200 mL of pure water (H2O)? The Ka of hypoiodous acid is 2¡¿10−11 1. 7 2. 10 3. 13 4. 5 5. 1
February 25, 2010 by hello

chemistry
I have a 0.25 m aquaeous solution of HCL. It's density is 1.05 g/ml. WHat is the % by mass (m/m) of this solution? What is the molarity of the solution? define molality. m = # mols/kg solvent. We have 0.25 m so we must have 0.25 x 36.5 g/mol HCl = 9.125 g HCl/1000 g solvent. ...
March 20, 2007 by nancy

biology
__Glycolysis is used to gain energy from glucose. How efficient is it (give an actual number) in its ability to get the energy from glucose into ATP? (assume the organism is undergoing anerobic fermentation). __You are studying a particular reaction in cells and determine that...
September 24, 2008 by Omar

Basic Chemistry
What is the molar concentration of Na+ in a solution prepared by dissolving 100.0g of Na3PO4 in sufficient H20 to form 2.00L of solution??
February 28, 2011 by Steph

Chemistry
A solution is prepared by dissolving 0.1 mol of ethanoic acid (CH3COOH) in 500ml of water at 25 C. pKa of ethanoic acid is 4.7. What is the pH of the solution? I'm assuming the equation is pH = pKa + log[Base]/[Acid] but can't get it to work?
October 21, 2015 by Becca

natural product 2
: Chloral hydrate solution is prepared by dissolving ____gms of solid chloral hydrate in 20ml water
August 3, 2013 by ravi avaiya

Chemistry
determine the molarity of a solution of silver nitrate prepared by dissolving 5g of silver nitrate in 25.0mL of water
September 1, 2015 by Morgan

Chemistry.
The complete combusion of 0.5763 grams of glucose in a bomb calorimeter (Cbomb = 6.20 kJ/degrees C) raises the temperature of the calorimeter by 1.45 degrees C. what is the food value of glucose in calories per gram? (Hint: remember 1 Cal = 4.184 kJ) i do not know how to find ...
March 29, 2011 by Rachel

AP Biology
Okay, so in the Lab Assignment that I'm currently working on in AP Biology, there is a question that says: - What results would you expect if a dialysis bag were filled with glucose and iodine and then placed into a beaker of starch and water? Its a multiple choice question (...
October 22, 2008 by Christian

Biology
Okay, so in the Lab Assignment that I'm currently working on in AP Biology, there is a question that says: - What results would you expect if a dialysis bag were filled with glucose and iodine and then placed into a beaker of starch and water? Its a multiple choice question (...
October 22, 2008 by Rae

Chemistry
Calculate the ΔHrxn for the following reactions using the heats of formation given in the table at the end of this assignment: a)The complete combustion of methane, CH4, producing water as a liquid. b)The complete combustion of glucose, C6H12O6, producing water as a ...
February 2, 2015 by Abby K.

Chemistry 104
What is the percent ionization of a solution prepared by dissolving 0.0286 mol of chloroacetic acid in 1.60 L of water? For chloroacetic acid ,Ka=1.4x10^-3
March 19, 2013 by Chemistry

Bioprocessing
A continuously operated 1000 liter CSTR is used for production of biomass from glucose provided by the feed (feed rate of 100l/h and glucose concentration of 10 g/l). The bacteria show Monod type growth with a maximal specific growth rate of 0.4/h and an affinity towards ...
March 11, 2013 by Emily

Chemistry Lab Math
Prepare 600mL of a 100mM solution of glucose in 0.9% NaCl.
December 5, 2010 by margrav2

chemistry
If you have 2 moles of glucose in 8 liters of solution, what is the molarfity of this sol;ution?
March 11, 2012 by idk

Science
A solution is prepared by dissolving 15grams of table salt in 70grams of water. Find (a) mass percent of solute (b) mass percent of solvent.
July 7, 2014 by Araceli

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