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August 30, 2016

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

Number of results: 37,037

physics
What change in temperature occurs in order to increase the volume of 16 L of ethyl alcohol to 17 L? a)56.8*C b)1450*C c)53.5*C d) 90*C I can't seem to get one of the answers. I used the equation (change in volume)=beta(initial volume)(change of time). 1 L=(3)(1.12x10^-4)(16 L...
November 21, 2007 by Anonymous

Chemistry
Cr(OH)3<-->Cr+3+3OH- 1. which direction will equilibrium change if CrCl3 is added, why? 2. which direction will equilibrium change if HCL is added, why?
February 27, 2011 by kappie

Algebra 2
Use Cramer's rule to find the number of items the company must sell each week to break even. y= 20x + 200 y= 25x D= |20 -1|. -20 - (-25) . |25 -1| D= 5 Dx= |200 -1|. -200 - 0 . |0 -1| Dx= -200 Dy= |20 200|. 0 - 5000 . |25 0 | Dy= -5000 x= Dx/D x= -200/5 x= -40 y= Dy/D y= -5000...
October 29, 2014 by Jacqueline

chem
you are trying to dissolve 5 grams of sugar in 1 L of water. The sugar will not dissolve fast enough. Explain how you can increase the rate of dissolving? do you increase temperature?
April 30, 2012 by bkue

Chemistry
I have liquid concentrated HCl (37%w/w) To prepare 100ml of 10g/L HCl as a solvent medium, is it acceptable to just weigh 1g of liquid conc HCl and dilute to 100ml with water? What volume of conc HCl should we use to make 100ml of 10g/L HCl?
May 28, 2012 by anne

Chemistry
if 3.00 g of iron metal are reacted in a calorimeter with a heat capacity of 500 J/ degrees Celsius, what would be the final temperature of the calorimeter if its initial temperature were 23.0 C?
November 7, 2012 by Gabby

Chemistry
if 3.00 g of iron metal are reacted in a calorimeter with a heat capacity of 500 J/ degrees Celsius, what would be the final temperature of the calorimeter if its initial temperature were 23.0 C?
November 7, 2012 by Gabby

Chemistry
If some NH4Cl is added to an aqeous solution of NH3: A. pH of solution will decrease B. PH will not change C. pH will increase D. NH4Cl cannot be added to NH3 E. The solution will not have pH I think the answer is B, because if NH4Cl is added to the solution of NH3, then ...
March 7, 2013 by Robby

chemistry
Draw the tritration curve for the neutralization of a 100ml sample of 1M solution of HCl with a .6M solution of Naoh point 1: 2 ml NaOH edded point 2: 40 ml NoOH ADDED POINT 3: EQUIVALENCE POINT 4: 80 ML NaOH added
April 3, 2011 by sam

Chemistry
At room temperature, 80.0 ml of 0.125 M AgNO3(aq) and 20.0 ml of 0.500 M Fe(NO3)2(aq) are mixed together, generating the following equilibrium system Ag+ (aq) + Fe2+(aq) Ag(s) + Fe3+(aq). At equilibrium, the concentration of Fe3+ is 0.00505 M. (a) (4 pts) Calculate the initial...
September 27, 2013 by Anonymous

5th grade
what is the mode for the following numbers? 900,700,500,600,600,300,600,200,100,300,200. please! show me how to do this problem? than you!
January 20, 2011 by pat

chemistry
Assume that no heat is lost to the surroundings and calculate the enthalpy involved when 200. mL of .10 M potassium hydroxide and 200. mL of .10 M hydrochloric acid are mixed. Both solutions began at room temperature, 24.5 degrees celsius, and have densities very close to 1.00...
April 14, 2014 by Devon

Algebra
The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the oven is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7 minutes? "Write an ...
August 2, 2009 by Mary K

Accounting
If a company erroneously records a $500 deposit as $50 in its records, which of the following must occur when reconciling its bank statement? a. The company must increase the balance per its records by $500. b. The company must decrease the balance per its records by $500. c. ...
September 30, 2012 by Anton

AP Chemsitry
A solution of an unknown monoprotic weak acid was titrated with 0.100 M NaOH. The equivalence point was reached when 37.48 ML of base had been added. From a second buret, exactly 18.74 of 0.100 M HCl were added to the titration solution. The pH was then measured with a pH ...
April 1, 2012 by Keith

Chemistry
A solution is prepared by dissolving 50.0 g of pure HC2H3O2 and 20.0 g of NaC2H3O2 in 975 mL of solution (the final volume). what is the ph? What would the pH of the solution be if 50.0 mL of 0.900 M NaOH were added? What would the pH be if 30.0 mL of 0.30 M HCl were added to ...
November 12, 2012 by Bella

Chemistry
How much concentrated 12 M HCl is needed to prepare 200 ml of a 2.5 M solution?
March 7, 2016 by Sam

Chemistry
A volume of 150mL of 0.35M HCl is to be prepared from 80% HCl stock solution. (Density of HCl = 1.191g/mL). Calculate the molarity of 80% HCl stock solution.
August 9, 2013 by K

Accounting
a net loss of $50,000 in 2009 and net income of $250,000 in 2010. The increase in net income of $300,000 can be stated as 200% increase cannot be stated as a percentage can be stated as 0% can be stated as 100% increase
January 9, 2010 by Don

AP Chemistry
In the titration of 50.0 mL of 1.0 M CH3NH2 (kb=4.4 x 10^-4), with 0.50 M HCl, calculate the pH a) after 50.0 mL of 0.50 M has been added b) at the stoichiometric point.
March 29, 2009 by some kid

chemistry
calculate the volume of 0.1M NaOH which must be added to 50 mL of 0.1M HCl to give a final solution of pH 6???
March 4, 2010 by sara

College Chemistry
How do i calculate the pH when 200ml of .200M HCl is added .4998M of sodium acetate?
May 9, 2010 by Jim

College Chemistry
How do i calculate the pH when 200ml of .200M HCl is added .4998M of sodium acetate?
May 9, 2010 by Jim

Chemistry
Approximately how much water should be added to 10.0 mL of 12.0 M HCl so that it has the same pH as .90 M acetic acid(Ka= 1.8 x 10^-5)?
March 13, 2011 by Sue

science
How much water should be added to 55.0 mL of 0.201 M HCl to dilute the solution to 0.155 M?
April 18, 2011 by Lauren

chemistry
If tums is added to 20.0 mL of 0.400 M HCl solution, how many grams of CO2 gas are produced?
April 22, 2011 by Starlit

Chemistry
How does Le Chatelier's principle explain the result you obtained when you added HCL to a suspension of Ca(OH)2 in water?
October 9, 2011 by mary

Chemistry
100 ml of 0.01N HCl is added to 0.9L of distilled water. What would the final pH of the solution be?
August 30, 2012 by Kristin

AP chemistry
1). In a titration 20 mL of 0.100 M of HCl is added to 50.0 mL of 0.150 M of ammonia. A). What is the pH of NH3? B). What is the pH of the resulting solution? HELP :(
March 21, 2013 by Amanda

chemistry
How many liters of 0.50M NaOH must be added to 125 mL of 0.75M HCL to neutralize it
May 19, 2013 by KJ

AP Chemistry
Approximately how much water should be added to 10.0 mL of 12.4 M HCl so that it has the same pH as 0.90 M acetic acid (Ka = 1.8 10-5)?
February 16, 2014 by Debbie

Chemistry
What volume (mL) of .20 M HCL needs to be added to 1.23 L of .10 M acetic acid to reduce percent ionization to 1.00%?
March 2, 2015 by Molly

Chemisty
How many milliliters of 5.50 M HCl must be diluted to make 350. mL of a 0.500 M solution?
April 10, 2012 by Wyatt

chemistry
How many milliliters of 4.50 M HCl must be diluted to make 400. mL of a 0.500 M solution?
November 10, 2014 by Cassie

chemistry
How many milliliters of 5.50 M HCl must be diluted to make 350. mL of a 0.500 M solution?
November 10, 2014 by Brendon

Math>> Help!!
You complain that the hot tub our hotel suite is not enough. The hotel tells you that they will increase the temperature by 10% each hour. If the current temperature of the hot tub is 75 Fereneit Degrees, what will be the temperature of the hot tub after 3 hours, to the ...
April 16, 2013 by Jnr John

physic
Hi! help me please, Thank you. A spherical steel ball bearing has a diameter of 2.540 cm at 23C. (a) What is the diameter when its temperature is raised to 94C? cm (b) What temperature change is required to increase its volume by 0.9%? I only need help on part b.Thank
December 1, 2009 by Chan

Math Help please
You complain that the hot tub in your hotel suite is not enough. The hotel tells they will increase the temperature by 10% each hour. If the current temperature of the hot tub is 75 degrees Fahrenheit, what will be the temperature of the hot tub after three hours to the ...
April 17, 2013 by Seth

Chemistry
Determination of Ksp, ΔG, ΔH and ΔS for Ca(OH)2. *** Need help on problem #3 & #4 *** CALCULATIONS: 1. Calculate the average solubility of calcium hydroxide, Ca(OH)2, at each temperature. 2. Calculate the Ksp for Ca(OH)2 at each temperature. 3. Calculate the...
March 18, 2014 by Airin

Chemistry
Consider the reaction: M + 2HCl MCl2 + H2 When 0.85 mol of the metal, M, reacted with an aqueous HCl solution (the HCl is in excess), the temperature of the solution rose because the reaction produced 6795 J of heat. What is ∆H in kJ per mol of M for this reaction? (...
May 4, 2015 by Jessica

CHEM
A cylinder with a movable piston contains 2.00g of helium, He, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from ...
October 28, 2007 by K

Chem
Use a chemical equation to help explain why the pH of an aqueous solution changes after HCl solution has been added This is what I got HCL + H2O = H30+ plus CL- Hope that makes since (those are a positive and negative signs at the right side of the equation) Tell if I'm right...
April 5, 2013 by meghan

finance
I need help bad. You have been running your small business, Crafts Boat Shop, for several years now and have been very successful. You have come to the point where you expect sales to increase next year and want to be sure that you have enough assets available to support ...
September 2, 2014 by karen

chemistry
Finding out if the amount of heat produced depends on an increase in the concentration of Hcl
April 28, 2013 by Silence

chemistry
Finding out if the amount of heat produced depends on an increase in the concentration of Hcl
April 28, 2013 by Silence

Basic Accounting
Complete an Income Statement, Statement of Owner's Equity, and Balance Sheet using the information provided below for Ryas Planning Services. Cash $21,500 Accounts Receivable17,500 Office Supplies 500 Equipment 15,000 Accounts Payable...
July 7, 2011 by MaS

math
you complain that the hot tub in your hotel suite is not enough. the hotel tells you that they will increase the temperature by 10% each hour. If the temperature of the hot tub is 75%F, what will be the temperature of the hot tub after 3 hours, to the nearest tenth of a degree?
April 27, 2013 by Jeconiah. please a needy help!!!

Chemistry
In a solution of copper(II) chloride, the following equilibrium exists: CuCl42-(aq) (dark green) + 4H2O(l) <--> Cu(H2O)42+(aq)(blue) +4 Cl-(aq) Predict the shift in the equilibrium and draw a graph of concentration versus time for relevant reactants to communicate the ...
November 28, 2010 by Mary

science
you are given one litre each of 0.5 M HCL and 0.2 M HCL. How should they be mixed so as to give maximum volume of 0.4 M HCL.
March 26, 2016 by mehreen

Science
A piece of copper at 90C is added 2.200 KG of water at 15C inside an aluminum calorimeter that has a mass of .100 KG the final temperature of the copper water and calorimeter is 25C what is the mass of the copper piece
March 2, 2015 by Michaela

chemistry
What volume of 4.50M HCl can be made by mixing 5.65M HCl with 250 mL of 3.55M HCl?
July 24, 2010 by casey

science
How many ml of concetrated HCl are required to make 2 liters of 3N HCl from concentrated HCl that is 37% w/v and has a specific gravity of 1.2. H=1 Cl=35.5
September 7, 2010 by j

Chemistry
Suppose that 85 mL of 0.4 M NaF and 50 mL of 0.4 M HCl are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.? Ka of HCl 1/Ka of HCl Ka of HF 1/Ka of HF Kb of F- 1/Kb of F- Kb of Cl- 1/Kb of Cl- Kw 1/Kw There is no reaction.
March 29, 2016 by Sarah

Chemistry
Na₂CO₃ (s) + 2HCL (ag) → 2NaCl (ag) + CO₂ + H₂O (l) If 4.25g of sodium carbonate is reacted completely with excess hydrochloric acid as 3M HCl, how many mL of HCl would be consumed? Note: Assume 3M HCl contains 3.00 moles of HCl per liter of ...
April 30, 2012 by Shelby

Chemistry***
A mixture containing 19.8 moles of H2 and 7.2 mole of I2 was allowed to reach equilibrium in a 5 L closed vessel at ToC according to the equation: H2 (g) + I2 (g) 2HI (g) At equilibrium, 14 moles of H2 was present. The equilibrium constant for this reaction is denoted as Kc(1...
December 30, 2014 by plasma membrane

chemistry
HCl is titrated with NaOH. When doing the titration, some of the NaOH splashed onto the inside surface of the Erlenmyer flask, and you forgot to rinse it into your sample. Would the systematic error be falsely high, low, or unaffected and why? Thanks. As I understand the ...
September 17, 2006 by bria

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

Accounting
At the beginning of April, Owl Corporation has a balance of $12,000 in the Retained Earnings account. During the month of April, Owl had the following external transactions. 1. Issue common stock for cash, $10,000. 2. Provide services to customers on account, $7,500. 3. ...
April 13, 2012 by John

chem
another calorimetry experiment is performed in which a 500. gram peice of gray metal at 67 degrees celsius is added to 493 grams of water. the water's temperature, originally at 17 degrees celsius, changes to 22 degrees celsius. What is the specific heat of the gray metal? I ...
April 24, 2008 by miley

Chemistry
1) How many drops of 12M HCl would you add to 1.00 L of 0.100 M HC2H3O2 to make [C2H3O2-] = 1.0 x 10^-4 M? Assume that 1 drop = 0.050 mL and that the volume of the solution remains 1.00 L after the 12 M HCl is diluted. [Hint: What must be the [H3O+] in the solution?] 2. What ...
August 10, 2009 by Chem

Chemistry
A buffer contains 5.00 M acetic acid and 5.00 M acetate anion. Gaseous HCl (0.010 mole) is added to 1.00 L of this buffer solution (the total volume does not change). For this buffer solution, the initial pH is_______and the final pH after the addition of the HCl gas is_______...
May 2, 2010 by Ivana

urgent help chemistry!!
2H2 +O2 ---> 2H20 A container at a o degrees celcius is filled with a mixture of oxygen and hydrogen. The fastest way to establish an equilibrium is.. 1. add more H2 2. do nothing, equilibrium will occur 3. increase the temperature 4. increase surface area. which is correct?
February 14, 2011 by Anonymous

Physics
55) A 200-g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300-g glass container. What is the final temperature of the mixture?
November 30, 2010 by Y0gi

physics
How much heat ( In calories)is needed to warm 200 grams of water from an initial temperature of 24 degrees celsits to a final temperature of 84 degrees celsuis
September 24, 2013 by teresa

Thermodynamics
An insulated rigid tank contains 1.5 kg of helium at 30∘C and 500 kPa. A paddle wheel with a power rating of 0.1 kW is operated within the tank for 30 minutes. Cvof helium = 3.12 KJ/Kg.K Problem 7A. Calculate the net work done by helium, in kJ. Enter the number with ...
October 17, 2014 by Phy

Biochemistry
Calculate the pH that would result if 0.40mL of 1.50 M HCl is added to 12.0 mL of a 0.065 M solution of the fully deprotonated form of the tripeptide glu-asn-leu. I know I'm supposed to do an ICE table... and the equation will look like this initially: deprotonated + HCl ---&...
January 17, 2009 by Andrew

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
calculate kole fraction of hcl in solution of hcl contaning 24.8% of hcl by mass
August 28, 2015 by dipak

Science
what is the required amount of con hcl needed to prepare 100ml of w/v dilute Hcl? strenth of Hcl 36.5 w/w and is specific gravity is 1.17
October 26, 2015 by M hari Dhas

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

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

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

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

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
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

Chemistry-Dr.Bob222
A 25.0 mL sample of 0.125 M pyridine is titrated with 0.100 M HCl. Calculate the pH at 0 mL of added acid.
April 19, 2016 by Nevaeh

quimica
In assessing 20.0ml of NaOH 0.175M , calculate how many ml of 0.200M HCl must be added to obtain a pH of 12.55
June 4, 2016 by marco

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
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

chemistry
"Stomach acid" is hydrochloric acid. A sample of gastric juice having a volume of 6.68 mL required 13.90 mL of 0.0161 M KOH solution for neutralization in a titration. What was the molar concentration of HCl in this fluid? C(HCl) = If we assume a density of 1.00 g mL-1 for the...
June 14, 2015 by walter

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
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

science
If a reaction rate increases with temperature, how will the rate constant of the reaction change with temperature? A. The rate constant only changes upon addition of a catalyst to the reaction. B. The rate constant will decrease with temperature. C. The rate constant will not ...
August 25, 2016 by evelyn

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

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

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

Science
This has already been posted, however the provided answer does not make sense. Anyone have additional insight for this one? An excess of aluminum metal is added to 200.0 mL of 0.025 M solution of CuCl2, reducing the Cu+2 ions to metallic Cu. If the temperature of the solution ...
January 4, 2016 by Chem Help

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