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May 27, 2015

Search: is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase

Number of results: 33,080

CORRECTED ECONOMICS ?
You own four firms that produce different products. The following table summarizes the conditions in each firm. After calculating the missing numbers for each firm, make one of the following four decisions regarding operations in each firm, and explain why a particular ...
August 25, 2008 by mat

college econ
You own four firms that produce different products. The following table summarizes the conditions in each firm. After calculating the missing numbers for each firm, make one of the following four decisions regarding operations in each firm, and explain why a particular ...
August 25, 2008 by mat

chemistry
60.5 grams of iron at an initial temperature of 87.5 degrees celsius are added to 125 grams of water at an initial temperature of 26.7 degrees celsius. calculate the final temperature of the mixture.
October 6, 2010 by alexja

chem
The pH of saturated Sr(OH)2 is found to be 13.12. A 15.0ml sample of saturated Sr(OH)2 is diluted to 250.0ml in a volumetric flask. A 15.0ml sample of the diluted Sr(OH)2 is transferred to a beaker, and some water is added. The resulting solution requires 29.3ml of a HCl ...
April 2, 2009 by tomi

Chemistry
What is the pH of a solution in which 25 mL of .10 M NaOH is added to 15 mL of .10 M HCl? I have calculated the amount of moles of each, but I'm not really sure where to go from there. Thanks!
April 11, 2010 by Hannah

Chemistry
What would happen to the color of a dilute solution containing FeCL4 if you added concentrated HCl?
April 26, 2010 by Christina

chemistry
AQUEOUS SODIUM HYDROXIDE IS ADDED TO SAMPLE X AND IS WARMED A GAS EVOLVES HCL WHAT IS THE EQUATION
May 12, 2011 by Anonymous

Chemistry
What mass of NaOH(s) must be added to 300 mL of HCl 0.25 M in order to completely neutralize this acid?
May 11, 2012 by Katie

Chemistry
Calculate the change in pH if 10mL of 0.1M HCl is added to the buffer made by mixing 25 mL of 1.0 M CH3COOH and 25 mL of 0.5 M CH3COONa.
January 19, 2015 by Lyca

science
A copper calorimeter of mass 150g, was half filled with water of mass 300g and temperature 0 degrees celcius. 5g of ice at 0 degrees celcius was added to the content, later some quanity of steam was passed into the mixture and the temperature rose by 20 degrees celcius. ...
March 2, 2014 by Tomex

Chemistry
If 5.00 mL of HCl require 4.59 mL of 0.9581 M NaOH to just consume the HCl, what is the concentration of the HCl?
February 22, 2010 by Caryn

chemistry
If 5.00 mL of HCl require 4.03 mL of 0.9581 M NaOH to just consume the HCl, what is the concentration of the HCl?
July 25, 2010 by Ellen

chemistry
What is the pH of 500 mL of water that had 0.00150 grams of NaOH added to it? The units are pH units with an error interval of 0.1 units. 0.00150 divided by 40NaOH 3.75e-5 divided that by 500= 7.5e-8 -log7.5e-8 =7.12 im lost on the last step
March 21, 2015 by danny

College Chemistry
A 50.0 mL sample of 6.0 M HCL is dulited to 200.0 mL. What is the new concentration of the acid?
December 8, 2010 by Sa ndra

Chemistry
A student mixes 45.0 ml of .150 M HCL with 30.0 ml of .200 M NaOH. What is the pH of the resulting solution?
February 10, 2012 by Juliano

Chem
what is the pH of solution made by mixing 100 mL of 0.030M HCL with 200 mL water?
September 16, 2012 by John

Phyics
Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?
November 19, 2013 by Carl

Physics
Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?
November 19, 2013 by Carl

Physics
Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?
November 20, 2013 by Help Please

Physics
Three moles of an ideal monoatomic gas are at a temperature of 345 K. Then, 2917 J of heat are added to the gas, and 1140 J of work are done on it. What is the final temperature of the gas?
April 21, 2015 by Adwait

Chemistry
If 50.00mL of 1.10M NaOH is added to 25.00mL of 1.86M HCl, with both solutions originally at 24.70 degrees Celsius, what will be the final solution temperature? (Assume that no heat is lost to the surrounding air and that the solution produced in the neutralization reaction ...
October 5, 2012 by Tasnim

chemistry
you add 13.7g HCL to water and make 500 mL solution. what will the solutions osmotic pressure be?
April 27, 2012 by Nicolette

Chemistry
Calculate the Ph and POH of an aqueous soltuion that is 0.500 M in HCl(aq) and 0.085 M in HBr (aq) at 25 degrees C.
February 20, 2014 by Help

chemistry
A titration was performed on 50.0 ml of .250 M NaOH. After the addition of 71.4 ml of HCl,the phenolphthalein indicator changed from pink to colorless. What was the concentration of the HCl? im not sure how to figure this one out but here goes 200*.250*1000=50000 1000*121.4=...
March 22, 2007 by unknown

Chemistry
Pure water boils at 100C (212F). When a substance is added to the water the boiling point increases due to what is referred to as the boiling point elevation. (a) What is the molecular mass of sucrose (C₁₂H₂₂O₁₁)? (b) If you add 100 g of ...
March 18, 2012 by Hannah

College Chemistry
2.50 mL of ethyl acetate and 2.50 mL of distilled water are added to the 5.00 mL of 3 Molar HCl and the mixture is allowed to sit for a week. At the end of this time, 28.30 mL of 1.000 Molar NaOH was needed to titrate the solution. (The HCl was the same as used in 1a. This ...
February 20, 2011 by Tichele

science
Hey, holidays is over. Time to get back to work. whats the answer to this one find the concentration of hcl in g hcl/kg Naoh + Hcl---> b +c 2.991 mol 25.00mL Density=0.952g/ml also Hcl=36.46g/mol I got approx 4.58 x 10^3 g/mol of the top of my head
September 1, 2009 by Jim_R

chemistry
Crushed ice, at -25 digrees was heated using a bunsen burner. The temperature was recorded over a period of 16 minutes. Between 5 and 9 minutes there is no increase in temperature. What change of state is taking place?
October 21, 2010 by Anonymous

6th grade math
In general, the air temperature decreases 12F for every 4000 feet increase in altitude. If a hiker climbs 3000 feet, by how much can she expect the temperature to decrease?
December 4, 2011 by Kate

Chemistry
50mL of 0.1M HCl is mixed with 50mL of 0.1NaOH. delta T = 3^oC. Calculate the enthalpy of neutralization per mole of HCl. assume the specific heat capcity of the solution is 4.18J/g/C and density=1.0g/mL. I tried it but got the wrong answer. What I did was I calculated the ...
August 10, 2007 by Vic

Chemistry multiple choice
During todays experiment we will produce hydrogen gas (H2) using zinc metal (Zn(s)) and hydrochloric acid (HCl). Which is a balanced net ionic equation illustrating this process? A. Zn (s) + 2 HCl (aq) --> Zn2+ (aq) + H2 (g) + 2 Cl- (aq) B. Zn (s) + 2 H+ (aq) --> Zn2...
December 1, 2010 by Nana

math
how does the no. of regions increase when another chord is added to the circle?
March 20, 2013 by esha

chemistry
describe how the changes would affect each of the following chemical equilibra involving gases.. 2NO2(arows facing both direction) N204+HEAT 1.THE TEMPERATURE IS INCREASE 2.THE PRESSURE IS DECREASED 3.THE CONCENTRATION OF NO2 is increase 4.THE CONCENTRATION OF N2O4 IS DECRESED
May 8, 2010 by CILLA

Chemistry, acids and bases
(a) Find pH and pOH of 1.0 M solution of sodium benzoate, NaC6H5COO. (Ka of benzoic acid is 6.2x10^-5) (b) Calculate pH after 0.205 moles per liter of HCl was added (assume volume does not change (c) Calculate pH after 1.0 moles per liter of HCl was added (assume volume does ...
May 6, 2008 by Marissa

Chemistry
In the reaction: Protection of 1-Phenylethanol by 3,4-Dihydro-2H-pyran, 1-phenylethanol, 3,4-Dihydro-2H-pyran and anhydrous ether were added first and stirred in ice-water bath before acid catalyst p-toluenesulfonic acid monohydrate was added. The reaction was kept at 0 deg ...
September 4, 2010 by Alan

Math
Please tell me if the answers I posted are correct with the questions given. I am terrible at math. A certain Metropolitan area is building a new Performing Arts Center with two auditoriums to be used as concert venues. Budget: $89,200,000 for construction costs $5,300,000 for...
November 5, 2009 by newcomb

Physics
A simple pendulum 1.50 m in length has a 500-g putty ball as an end bob. The pendulum is pulled aside 60 from the vertical and given an initial tangential speed of 1.20 m/s. At the bottom of the arc path, the bob hits and sticks to a 200-g putty ball sitting on a tee. (a) ...
June 20, 2012 by Tracy

Algebra
x: 0, 2, 4, 6 ,8 y: 1, 49, 2401, 117,649 How do the y-values in the table grow? A. The y-values increase by a factor of 49 for each x increase of 1. B. The y-values increase by 49 for each x increase of 1. C. The y-values increase by a factor of 7 for each x increase of 1. D. ...
July 6, 2014 by Emma

Chemistry
You are preparing 500 mL of a 0.300 M acetate buffer at pH 4.60 using only sodium acetate, 3.00 M HCl, 3.00 M NaOH, and water. Calculate the quantities needed for each of the following steps in the buffer preparation. 1. Add sodium acetate to ~400 mL of water in a large beaker...
February 28, 2012 by Unknown

Science
Which of the following is a way to improve the efficiency of a heat engine? increase Qh reduce Qh reduce Wnet increase Qc A What are the energies associated with atomic motion called? kinetic energy potential energy bond energy internal energy D A 0.10 kg piece of copper at an...
January 23, 2012 by Lena

Chemistry
Can someone please tell me if I did this correctly? Calculate the molarity of the HCl from the volumes of acid and base and the molarity of the NaOH. Use the following equation: (molarity of acid)x(volume of acid)=(molarity of base)x(volume of added base) equivalance point=...
February 20, 2008 by Brad

chemistry
Concentrated HCL acid is 38% by weight of HCL and has a density of 1.19 g/ml. What is the morality of HCL?
September 25, 2011 by Anonymous

Food Chemistry
Calculate the amounts and pH values for preparing the following acetic acid/acetate buffer solution. 1.) In the first step, If you plan to prepare a 2.00 M sodium acetate in 200.0 mL distilled water, how many grams of sodium acetate should be added in water? 2.) B. In the 2nd ...
April 29, 2010 by Lauren

Chemistry
A 100.0mL solution containing aqueous HCl and HBr was titrated with 0.1290M NaOH. The volume of base required to neutralize the acid was 47.56mL. Aqueous AgNO3 was then added to precipitate the Cl- and Br- ions as AgCl and AgBr. The mass of the silver halides obtained was 0....
November 19, 2012 by Melia

chemistry
25 ml HCl x 1L/1000mL x .200HCl/1L = .005 mol HCl. Using the balanced equation from this, how many moles of NaOh will you need to completely neutralize the HCl?
November 10, 2010 by Zac

math
Oakwood Plowing Company purchased two new plows for the upcoming winter. In 200 days, Oakwood must make a single payment of $23,200 to pay for the plows. As of today, Oakwood has $22,500. If Oakwood puts the money in a bank today, what rate of interest will it need to pay off ...
June 13, 2012 by Anonymous

Chemistry
Calculate the molarity of the HCl from the volumes of acid and base and the molarity of the NaOH. Use the following equation: (molarity of acid)x(volume of acid)=(molarity of base)x(volume of added base) equivalance point=number of mL of base to an acid 1mL=0.001L HCl volume=...
February 20, 2008 by Brad

Physics
For the situation: "A moving crate slides to a halt on a rough surface" Does temperature increase, decrease, or not change? Are work and heat positive, negative, or zero? Does thermal energy increase, decrease, or not change? My answer key says temperature increases, work is ...
November 16, 2014 by Courtney

chemistry
Assuming that the volumes are additive, what volume of water must be added to 35.0mL of 23.0 M HCl to make a solution which is 3.00 M?
April 13, 2011 by Denise

Biochemistry
Which of the following is the correct pH of a 211.7 mL solution (final volume) of pure water after 52.3 mL of 1.00 mM HCl was added?
September 17, 2013 by Rich

ASU
How much MnO2(s) should be added to excess HCl(aq) to obtain 215 mL of Cl2(g) at 25 C and 705 Torr?
October 15, 2013 by Kara

Math
What was the percent increase in the mean population from 1950 to 2000? 1950 - 426,000,000 2000 - 1,046,500,000 DO I divide 426,000,000 by 1,046,500,000 which is 40.7%? No. First you find the difference in the mean population. Then you take the diiference and you divide it by ...
June 7, 2007 by Maggie

chemistry
What is the pH of a solution prepared to contain 155 grams of HCl in 200.0 mL? Can you tell me how to do it? I can't remember how...
December 16, 2010 by Claudia

Chemistry
When 22.7mL of o.500 M H2SO4 is added to 22.7mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50 degrees Celsius, the temperature rises to 30.17 degrees Celsius. Calculate the delta h of this reaction. (Assume that the total volume is the sum of individual volumes and that ...
October 19, 2012 by Sean

oceanography
Compute the amount of heat is needed to raise the temperature of 1,200 grams of ice at -30 degrees C to 1,200 grams of water vapor at 140 degrees C. Show work.
April 21, 2015 by MB

Chemistry
What is the concentration of a solution prepared by diluting 25.0 mL of HCL 0.750 mol/L to a final volume of 500.mL?
April 30, 2008 by April

Chemistry
What is the concentration of a solution prepared by diluting 25.0 mL of HCl 0.750 mol/L to a final volume of 500. mL?
May 2, 2008 by Kate

chemistry
What formula do I use to figure how many mL of 6.00 M of HCl must be diluted to make 600 mL of a 0.500 M solution?
July 25, 2010 by Norma

chemistry
2. If you used 0.500 g of Mg and an excess of HCL, how much hydrogen gas should be produced at STP?
April 5, 2011 by Anonymous

Chemisttry
A 100.0-mL sample of 0.250 M aniline (C6H5NH2) is titrated with 0.500 M HCl. What is the pH at the equivalence point?
May 6, 2012 by Jake

Chemistry
What mass of hydrogen gas is produced when a 7.43 g chunk of zinc dissolves in 500.0 mL of 1.200M HCl?
April 14, 2014 by Chris

Chemistry
1.What mass of NaOH(s) must be added to 300 mL of HCl 0.25 M in order to completely neutralize this acid? 2.During a lab, you mix 2 solutions: a 100 ml solution containing 0.40 g of NaOH and a 100 mL solution containing 0.73 g of HCl. What is the concentration of H+ ions in ...
May 9, 2013 by Talulla

Mathematics
Hi, I dont like asking for help .. can someone check my work please ? In a biometric system under testing there are 500 users. 200 were legitimate users (authorised), and 300 were not ( unauthorised) At one threshold the system:- Shut out 10 individual users it should have ...
May 30, 2011 by Fred

Biometrics
Hi, I dont like asking for help .. can someone check my work please ? In a biometric system under testing there are 500 users. 200 were legitimate users (authorised), and 300 were not ( unauthorised) At one threshold the system:- Shut out 10 individual users it should have ...
May 31, 2011 by Fred

Chemistry
Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that you have 165 mL of a buffer that is 0.360 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO). Calculate the maximum volume of 0.250 M...
November 17, 2013 by Brody

Chemistry
Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that you have 165 mL of a buffer that is 0.360 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO). Calculate the maximum volume of 0.250 M...
November 17, 2013 by Brody

Chemistry
500 ml of a buffer solution with ph=2.10 must be prepared using .4 M HNO2 and solid KNO2. The ka value of HNO2 is 4e-3. a.) What mass of KNO2 should be added to 3 L of the HNO2 to make the buffer? b.) What is the buffer's pH after 150 ml of .5 M HNO3 is added?
March 20, 2014 by Anonymous

Chemistry
Consider the titration of 80.0 mL Ba(OH)2 by 0.400 M HCl. Calculate the pH of the resulting solution after the following volumes of HCl have been added. a.) 0.0 mL *Which molecular equation do I use? b.) 20.0mL Ba(OH)2__+2HCl_+=>+_BaCl2_+____2HOH 80.0 mL__20.0mL 0.100M___0....
January 10, 2012 by Summer

Chemistry
Why does the voltage increase when ammonia is added to a Cu2+ cell??
March 16, 2011 by Anonymous

chemistry
analysis of a mixture of carbonate and bicarbonate: I did an experiment where 2.306g of unknown was diluted with distilled water to 250ml. Then 3 25mL samples of this unknown were titrated with .0663 M HCl and end point volumes were: 41.12mL, 41.00mL and 40.99mL. Then 3 more ...
September 25, 2013 by martini

chemistry
A volume of 100mL of 1.00 M HCl solution is titrated with 1.00 M NaOH solution. You added the following quantities of 1.00 M NaOH to the reaction flask. Classify the following conditions based on whether they are before the equivalence point, at the equivalence point, or after...
August 6, 2012 by Anon

chemistry
why wouldn't a higher experimental ratio of HCl increase the reaction rate for synthesis of t-pentyl alcohol?
March 20, 2013 by Anonymous

Chemistry II
The enthalpy of neutralizatino for the reaction of a strong acid with a strong base is -56 kJ/mol of water produced. How much energy will be released when 230.0 mL of 0.400 M HCl is mixedwith 150.5 mL of 0.500 M NaOH? How do I figure out how much water is produced in the ...
May 20, 2007 by Jayd

Math-Algebra
The pressure of a gas varies directly as its temperature. IF the pressure of a gas is 200 pounds per square inch (lb/in^2) at a temperature of 65.5 degrees C, what is the pressure of the gas when the temperature is 250 degrees F?
November 11, 2013 by McKenna Louise

Physics
James Joule once attempted to measure the increase in temperature of the water in a waterfall resulting from its decrease in gravitational potential energy. How high would the waterfall have to be for the temperature at the bottom to be 1C higher than at the top?
April 17, 2012 by Alex

Physics
James Joule once attempted to measure the increase in temperature of the water in a waterfall resulting from its decrease in gravitational potential energy. How high would the waterfall have to be for the temperature at the bottom to be 1C higher than at the top?
April 17, 2012 by Alex

chemistry
When 50.0mL of 1.20 M of HCl (aq)is combined with 50.0mL of 1.30 M of NaOH (aq) in a coffee-cup calorimeter, the temperature of the solution increases by 8.01 Degrees C. What is the change in enthalpy for this balanced reaction? HCl(aq) + NaOH(aq) --yields-- NaCl(aq) + H20(l) ...
November 14, 2012 by marcus

Econ
A firm is considering locating a 100 employee microprocessor production facility in one of Alands cities. The products this firm will produce are expected to be exported to other places (other cities within and outside the country). City planners think it is possible that the...
November 29, 2010 by Candie

Chemistry
1. Isolation of aniline by steam distillation. (a) Why is NaOH added before performing thedistillation? (b) Suggest a reason for the milky appearance of the distillate and for the change in appearance upon addition of HCl. After having isolated the reduction product, aniline, ...
October 19, 2006 by Lindz

Science
Am I correct with my answeres below? During which hours of the day is the earth's emitted radiation highest and Why? My Answer: I think it is in the afternoon because of the increase in surface temperature. Why are values of LW^ higher in the summer than in the winter? My ...
March 9, 2009 by Mama Mia

College Chemistry
Given 20 mL NaOH; 0.1 M, add 0.05 M HCl, 10 mL at a time. What is the pH initially of NaOH? What is the pH after adding 10 mL 0.05 M HCl? What is the pH after adding 20 mL 0.05 M HCl? What is the pH after adding 30 mL 0.05 M HCl? What is the pH after adding 40 mL 0.05 M HCl? ...
July 7, 2010 by Erika

Barometric Pressure
I have been studying the reduction in barometric pressure and temperature with height and am happy with my findings ref temperature. With regard to pressure I read that for every increase in altitude of 32 feet the pressure drops 1 mb. For every increase in height of 1000m the...
August 28, 2006 by mike

math
Hi, I had a question about exponential growth. The problem says: The population in Woonsocket is 43,500. Every year the population increases by 2%. Write the exponential equation that represents this situation. I put that the equation was 43,500 (1+.2)^y (y standing for how ...
March 4, 2008 by Juliana

Science
Any help would be appreciated! Which of the following is a way to improve the efficiency of a heat engine? increase Qh reduce Qh reduce Wnet increase Qc A What are the energies associated with atomic motion called? kinetic energy potential energy bond energy internal energy D ...
January 18, 2012 by Anonymous

Science
Any help would be apreciated! Which of the following is a way to improve the efficiency of a heat engine? increase Qh reduce Qh reduce Wnet increase Qc A What are the energies associated with atomic motion called? kinetic energy potential energy bond energy internal energy D A...
January 19, 2012 by Anonymous

Chemistry
A quantity of 100 mL of .5M of HCl (aq) is mixed with 100 mL of .5M of NaOH (aq) in a constant pressure calorimeter. The initial temperature of the solutions is 22.30 C and the final temperature of the mixed solution is 25.00 C. What is "q" for solution and "q" for reaction?
April 8, 2012 by Dante

High School Chemistry
10mL of 0.10M HCl is given. What is the pH? How many milliliters of 0.10M NaOH would be required to neutralize it? What is the pH of the neutralized solution? What would the pH of the solution be if you added 20mL of NaOH? Here's what I have so far: pH of HCl=-log(0.10M)= 1 ...
March 21, 2011 by Becky

Chemistry - Solubility
INFORMATION: [HCl] = 0.1388 M We placed 0.5 g Ca(OH)2 in 100 mL of the following solutions: Flask A: Distilled Water (7.4 mL of HCl needed to titrate) Flask B: 0.05 M NaOH (7.5 mL of HCl needed to titrate) Flask C: 0.025 M NaOH (10.8 mL of HCl needed to titrate) Flask D: 0....
March 31, 2014 by PleaseHelpThankYou!

Chemistry HELP
In a constant-pressure calorimeter, 50.0 mL of 0.300 M Ba(OH)2 was added to 50.0 mL of 0.600 M HCl. The reaction caused the temperature of the solution to rise from 21.73 C to 25.82 C. If the solution has the same density and specific heat as water, what is ΔH for this ...
October 18, 2014 by wisa bedalie

Chemistry
I am pretty good at balancing oxidation reduction problems, but I can't do this one: HIO3 + FeI2 + HCL -> FeCl3 + ICl + HOH 5HIO3 + 4FeI2 + 25HCl -> 4FeCl3 + 13ICl + 15HOH I separated the three redox equations, added the two oxidation reactions together, then balanced ...
February 2, 2007 by Brendan

Chemistry
What volume of 6M HCl and 2M HCl should be mixed to get 2 litres of 3M HCl?
April 29, 2010 by Sreeraag

chem
A student placed 12.0grams of glucose in a flask added enough water to dissolve glucose by swirling then added additional water until the .100 ml mark. A 60.0ml sample of this glucose soon was diluted to 0.500 L. How many grams of glucose are in 100. ml of the final solution.
September 19, 2011 by ALISON

Chemistry
A buffer is made up of .300 L each of .500 M KH2PO4 and .317 M K2HPO4. Assuming tha the volumes are additive, calculate a) the pH of the buffer b) the pH of the bugger after the addition of .0500 mol of HCl to .600 L of the buffer. c) the pH of the buffer after the addition of...
May 1, 2007 by James

chemistry
A 0.500 L solution of 7.50 M hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. Calcium chloride a chemical used to control highway dust, strengthen concrete mixes, and add flavor to foods is produced by the reaction. 2 HCl + Ca(OH)2 → ...
March 1, 2010 by BT

Chemistry
How many moles of HCl must be added to 100mL of a 0.100 M solution of methylamine (pKb=3.36) to give a buffer having a pH of 10.0?
April 24, 2011 by Joe

chem
If 1.0 L of 0.2 M Ca(OH)2 is added to 2.5 L of 0.1 M HCl, the pH of the final solution is? can someone show me the working out of this question? im very confused by it. thankyou
August 18, 2011 by an

Chemistry
Calculate pH when 0.060 mols of HCl are added to 1.000 L of a buffer containing 0.499M KH2PO4 and 0.193M K2HPO4
February 10, 2012 by Jenn

Business/Accounting Question
You are to state what will increase and/or decrease in each of the transactions described below. 1) Mythical Services sold $500 of legal services on account. 2) Mythical collected the $500 from transaction nmuber 1 above 3) Mythical purchased office furniture on account in the...
June 15, 2006 by Laura

Calculus
The temperature of a cup of Starbucks coffee at time t (in minutes) is T(t)= 70 + c e^(-kt) . Initially, the temperature of the coffee was 200 degrees F. Three minutes later, it was 180 degrees. When will the temperature of the coffee be 150 degrees F? The back of the book ...
November 10, 2009 by Bill

Chemistry
A solution is prepared by adding 50.3 mL of concentrated hydrochloric acid and 16.6 mL of concentrated nitric acid to 300 mL of water. More water is added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution. [Hint: Concentrated HCl is 38% HCl...
February 28, 2012 by Andre

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