Thursday
April 24, 2014

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

Number of results: 10,351

Converting Roman numerals to arabic Numbers
1) CCXIX C = 100 X = 10 I = 1 because there are 2 C's I added them together and I got 200 because there are 2 X's I added them together and got 20 because there is 1 I that equaled 1 So I added 200 + 20 + 1 = 221 which is my final answer But according to the back of the book ...
Tuesday, March 15, 2011 at 7:59pm by Rina

IPC
The latent heat of vaporization of ethanol is 200 calories/gram. This means that _____. a) about 200 calories of heat must be added to 1 gram of ethanol to change its temperature b) about 200 calories of heat must be added to 1 gram of ethanol to convert it from a solid to a ...
Tuesday, October 26, 2010 at 11:00am by Jon

Chemistry
What mass of solid aluminum hydroxide can be produced when 50.0mL of .200 M Al(NO3)3 is added to 200.0 mL of .100 M KOH
Wednesday, September 5, 2007 at 5:42pm by Anonymous

Chemistry
(ii) between 0 and 100.0 mL NaOH added H2A H2O HA - Na+ A2- OH - (iii) 100.0 mL NaOH added H2A H2O HA - Na+ A2- OH - (iv) between 100.0 mL and 200.0 mL NaOH added H2A H2O HA - Na+ A2- OH - (v) 200.0 mL NaOH added H2A H2O HA - Na+ A2- OH - (vi) after 200.0 mL NaOH added H2A H2O...
Friday, March 8, 2013 at 12:13am by Franklin

physical science
If 500 kg of water at 200 degrees F is poured into a lake that is 50.0 degrees F, how much heat is added to the lake? Joules added = mass x specific heat water x delta T. mass = 500 kg Look up specific heat water in cal/kg delt T is 200. Solve for Joules added. Isn't the ...
Friday, June 22, 2007 at 8:30pm by jan

chem
0.949 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 389C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC.
Monday, May 18, 2009 at 7:17pm by Anonymous

Chemistry
A 100.0 mL sample of 0.100 M formic acid, CHOOH, is titrated with 0.200 M KOH. Calculate the pH after 40.0 mL of 0.200 M KOH has been added.
Monday, December 7, 2009 at 11:37pm by John

chemistry
Consider the titration of 50.0 mL of 0.200 M HOCl by 0.200 M KOH for the next five questions (Ka for HOCl = 3.5 x 10-8). Calculate the pH after 150.0 mL of KOH has been added.
Sunday, March 23, 2014 at 9:50pm by bekah

stoichiometry
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200 M aluminum nitrate is added to 200.0 mL of 0.100M potassium hydroxide?
Tuesday, February 26, 2008 at 7:10pm by omar

Accounting
A deposit of $1,250 that was incorrectly in the checkbook as 1,200 should be a. added to the checkbook b. deducted from the cheeckbook c. added to the bank statement balance d. deducted from the bank statement balance ok so I know for sure its not c or d as the bank has the ...
Wednesday, February 13, 2008 at 9:36pm by Chels

Chemistry
A 100 milliliter sample of 0.100-molar NH4Cl solution was added to 80 milliliters of a 0.200-molar solution of NH3. The value of Kb for ammonia is 1.79 x 10^-5. (a) What is the value of pKb for ammonia? (b) What is the pH of the solution described in the question? (c) If 0.200...
Monday, April 26, 2010 at 8:49pm by Nicole

Chemistry
A 100 milliliter sample of 0.100-molar NH4Cl solution was added to 80 milliliters of a 0.200-molar solution of NH3. The value of Kb for ammonia is 1.79 x 10^-5. (a) What is the value of pKb for ammonia? (b) What is the pH of the solution described in the question? (c) If 0.200...
Monday, April 26, 2010 at 8:58pm by Nicole

Finance
What is the present value of the following payments? The interest rate is 8.5%. $200 $200 $200 $200 $200+$1,000 I--------I-------I-------I-------I-------I 0 1 2 3 4 5
Tuesday, February 1, 2011 at 2:06pm by FinanceQ

Chemistry
When 0.969 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 397C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. Delta Hrxn, for the reaction of CaO(s) + 2H+(aq) Ca2+(aq) + ...
Sunday, February 24, 2008 at 3:37pm by Anonymous

chem-help pls!
When 0.975 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 400C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. Hrxn, for the reaction of CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) ...
Monday, February 25, 2008 at 1:06pm by Anonymous

chemistry
When 0.638 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 104C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. The molar heat of reaction for the reaction of Ca(s) + ...
Wednesday, February 18, 2009 at 7:55pm by Anonymous

chemistry
When 0.627 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 102C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. The molar heat of reaction, H rxn, for the reaction of ...
Sunday, February 24, 2008 at 4:12pm by joshua

chemistry
When 0.627 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 102C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. The molar heat of reaction, H rxn, for the reaction of ...
Monday, February 25, 2008 at 12:42pm 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 ...
Thursday, April 29, 2010 at 10:34am by Lauren

Chemistry
When 0.655 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 107C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Monday, February 25, 2008 at 1:01pm by Anonymous

chemistry
When 0.949 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 389C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. what is molar heat of reaction, Hrxn, for the reaction of CaO...
Monday, February 15, 2010 at 6:28pm by blasting

Chemistry
0.200 moles of NaF are added to 1L 2.0 molar HF. What is the pH? a) 2.14 b) 6.70 c) 10.80 d) 3.00 e) 7.00
Sunday, April 29, 2012 at 11:19pm by Zac

Chemistry
When an excess of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 4.01C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Tuesday, April 10, 2012 at 3:08am by Katherine

chemistry
When 0.954 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 391C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Sunday, February 24, 2008 at 2:45am by Anonymous

chemistry
When 0.911 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 374C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Monday, February 25, 2008 at 1:55pm by jenivy

Chemistry
When 0.945 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 387C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Monday, February 22, 2010 at 5:15pm by eli

Chemistry
When 0.934 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 383C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Friday, February 11, 2011 at 1:12am by Shawn

Chemistry-Repost for DrBob222
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? Your answer was...
Friday, March 21, 2014 at 2:34pm by Anonymous

chemistry
When 0.969 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 397C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Saturday, February 21, 2009 at 6:01pm by tweety

chemistry
A 200 mL sample of 1.0 M nitric acid is added to 1.0 M water. What is the resulting pH?
Friday, October 8, 2010 at 11:16am by Anonymous

chem
what is the ph of a solution in which 250.0 ml of .200 M HNO3 is added to 280.0 ml of .150 Ba(OH )
Tuesday, November 13, 2012 at 12:24pm by k

chem
what is the ph of a solution in which 250.0 ml of .200 M HNO3 is added to 280.0 ml of .150 Ba(OH )
Tuesday, November 13, 2012 at 12:26pm by k

chem
what is the ph of a solution in which 250.0 ml of .200 M HNO3 is added to 280.0 ml of .150 Ba(OH )
Tuesday, November 13, 2012 at 12:30pm by k

chem
what is the ph of a solution in which 250.0 ml of .200 M HNO3 is added to 280.0 ml of .150 Ba(OH )
Tuesday, November 13, 2012 at 12:35pm by k

chem
what is the ph of a solution in which 250.0 ml of .200 M HNO3 is added to 280.0 ml of .150 Ba(OH )
Tuesday, November 13, 2012 at 12:44pm by k

chem
what is the ph of a solution in which 250.0 ml of .200 M HNO3 is added to 280.0 ml of .150 Ba(OH )
Tuesday, November 13, 2012 at 2:08pm by k

Chem1LB
When 0.917 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 3.76C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Wednesday, February 17, 2010 at 5:35am by Alex Le

chemistry
When 0.712 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 116C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Monday, May 18, 2009 at 5:14pm by wilson

Chemistry
10.0 g of H2SO4 are added to 50. 0 mL of water. Is the answer 200. If not how do you approach the problem to get the solution.
Saturday, September 6, 2008 at 4:06pm by George

CHEMISTRY
When 0.756 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 123C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Sunday, February 24, 2008 at 2:44am by Anonymous

chemistry
When 0.667 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 108C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Saturday, February 13, 2010 at 3:25am by blasting

Chemistry
When 0.689 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 112C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Friday, February 19, 2010 at 9:30pm by Adam

chemistry
When 0.767 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 125C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Sunday, February 21, 2010 at 3:22pm by Kelly

Chem 1LB
When 0.678 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 11.0C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Sunday, February 21, 2010 at 4:32pm by Libit

Chem 1LB
When 0.678 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 11.0C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Sunday, February 21, 2010 at 4:49pm by Libit

chemistry
The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium sulfate is added, a ...
Wednesday, April 11, 2012 at 6:23pm by bill

Chemistry
Consider the following equilibrium reaction: NaHCO3(s) Na2CO3(s) + H2O(g) + CO2(g) When 100 g of sodium hydrogen carbonate are added to a reaction vessel, the temperature is increased to 200C, and the system comes to equilibrium. What happens to the partial pressure of carbon...
Monday, February 27, 2012 at 9:13pm by Tanner

chemistry lab
When 0.969 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 397C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not round ...
Monday, February 23, 2009 at 5:27pm by tweety

Chemistry
When 0.702 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 114C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Monday, February 22, 2010 at 12:15am by Taylor

Chemistry
When 0.655 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 107C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Monday, February 22, 2010 at 5:17pm by eli

Chemistry Lab
When 0.671 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 109C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Friday, February 11, 2011 at 1:11am by Shawn

biochemistry
The pH of 0.02M solution of a weak acid was measured at 7.6. What is the [OH-] in this solution? B) The Ka for benzoic acid is 6.4 x 10-5M. 150 ml of 0.1 M NaOH is added to 200 ml of 0.1 M benzoic acid, and water is added to give a final volume of 1 L. What is the pH of the ...
Friday, September 21, 2012 at 9:38am by Emma

Chemistry
When 0.689 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 112C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Friday, February 19, 2010 at 9:35pm by Adam

chem
Calculate the final concentration of a. 4.0 L of a 4.0 M HNO3 solution is added to water so that the final volume is 8.0L b. Water is added to 0.35L of a 6.0M KOH solution to make 2.0L of a diluted KOH solution. c.A 20.0 mL sample of 8.0% (m/v)NaOH is diluted with water so ...
Thursday, November 8, 2012 at 1:32pm by tracy

Chemistry
How much corn syrup should be added to water to make 200 ml of a 10% by volume solution?
Saturday, March 14, 2009 at 6:12pm by P

AP Chemistry
100. mL of 0.020 M CaCl2(aq) is added to 200. mL of 0.20 M K2SO4(aq). Calculate the equilibrium concentrations of Ca^2+ (aq) and SO4^2-(aq)
Wednesday, April 21, 2010 at 10:06pm by Bob

General Chemistry
How many milliliters of 0.5M NaOH must be added to 200 mL of 0.1M NaH2PO4 to make a buffer solution with a pH of 6.9?
Thursday, January 31, 2013 at 11:05am by Joanna

Chemistry
How many milliliters of 1.0 M NaOH must be added to 200. mL of 0.10 M NaH2PO4 to make a buffer solution with a pH of 7.50? (5 points)
Thursday, April 4, 2013 at 7:27pm by bill

chemistry
500.0 mL of 0.140 M NaOH is added to 625 mL of 0.200 M weak acid (Ka = 1.37 10-5). What is the pH of the resulting buffer?
Wednesday, November 13, 2013 at 7:34pm by samm

macro econ
I need to find whether or not the company is making an optimal inout choice. largo publishing house uses 400 printers and 200 printers to produce books. A printers wage is 20. and the price of a printing press is 5000. the last printer added 20 books to total output while the ...
Sunday, December 6, 2009 at 9:01pm by joy

chem
part 1 When 0.633 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 103C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do ...
Friday, May 14, 2010 at 4:18pm by Anonymous

chemistry lab
please help its due at 5 When 0.671 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 109C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to ...
Monday, February 23, 2009 at 5:26pm by tweety

chemistry
Given this data in a study on how the rate of a reaction was affected by the concentration of the reactants Initial Rate, RUN # A], M [B, M C], M mol L-1 s-1 1 0.200 0.100 0.600 5.00 2 0.200 0.400 0.400 80.0 3 0.600 0.100 0.200 15.0 4 0.200 0.100 0.200 5.00 5 0.200 0.200 0.400...
Friday, February 17, 2012 at 9:19pm by senior pup

chemistry
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200M Al(No3)3 is added to 200 Ml of a 0.100M KoH
Friday, November 6, 2009 at 3:20pm by Kaylee

chemistry
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200M Al(No3)3 is added to 200 Ml of a 0.100M KoH
Friday, November 6, 2009 at 3:21pm by Kaylee

Chemistry II
Calculate how many milliliters of 0.100 M HCl must be added to 25.0 ml of a 0.200 M solution of NH3 to prepare a buffer that has a pH of 9.50? Kb = 1.76 x 10^-5
Wednesday, June 29, 2011 at 1:13pm by Terence

Chemistry 12
Calculate the volume of 12 M Na2SO3 which needs to be added to 500.0 mL of water in order to produce a solution in which [Na+]= 0.200 M.
Tuesday, October 8, 2013 at 1:13am by Riann

chemistry
When 0.752 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 12.2C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Friday, February 9, 2007 at 11:52pm by nickel

pre algebra
14 is what percent of 200 100/200 =x/14 read as 100% is to 200 as x% is to 14 solve for x by cross multiplying x=7 check it .07 times 200 = 14 vola!
Thursday, February 8, 2007 at 11:24pm by jen

Chemistry
When 0.689 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 11.2C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Sunday, May 15, 2011 at 8:44pm by ChemGeek

Chemistry(Thank you for helping)
1) Given this data in a study on how the rate of a reaction was affected by the concentration of the reactants Initial Rate, RUN # (A), M (B), M (C), M mol L-1 s-1 1 0.200 0.100 0.600 5.00 2 0.200 0.400 0.400 80.0 3 0.600 0.100 0.200 15.0 4 0.200 0.100 0.200 5.00 5 0.200 0.200...
Monday, February 20, 2012 at 7:15pm by Hannah

Chemistry
1.Calculate the pH of a solution prepared by mixing 20mL of the .07222M aspirin solution with 10mL of .2M NaOH. 2. Calculate the pH for the titration of 40mL of .1M solution of C2H5NH2 with .1M HCl for a)0 mL added and b)20 mL added c)40 mL added d)50mL added. Kb= 6.4x10^-4
Saturday, November 26, 2011 at 8:14pm by Jessica

Chemistry
If 100. mL of 0.400 M Na2SO4 is added to 200. mL of 0.600 M NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.
Sunday, January 16, 2011 at 12:15am by emoni

Chemistry
Calculate the OH− concentration after 51.3 mL of the 0.100 M KOH has been added to 25.0 mL of 0.200 M HBr. Assume additive volumes. Answer in units of M.
Tuesday, March 22, 2011 at 10:50pm by Mandy

Chemistry
If 8.00 kJ of heat are added to 200. g of water at 20.0 ◦C, what is the final temperature of the water
Thursday, September 16, 2010 at 10:27pm by Ponyboy

chemistry
if 8.00kJ of heat added to 200. g of water at 20.0 C what is final temperature of water?
Thursday, September 23, 2010 at 11:08pm by Brianna

chemistry
If 8.00 kJ of heat are added to 200. g of water at 20.0 C, what is the final temperature of the water?
Monday, January 17, 2011 at 5:33pm by jane

Chemistry
How many grams ammonium chloride and how many milliliters 3.0 M sodium hydroxide should be added to 200 ml of water and diluted to 500 ml to prepare a buffer of 9.50 with a salt concentration of 0.1 M? Ka=9.24
Monday, March 18, 2013 at 5:24pm by ---

Chemistry
How many mL of 0.200 M H3PO4(aq) must be added to 25.0 mL of 0.0888 M BaCl2(aq) to precipitate all the barium as barium phosphate?
Saturday, October 20, 2012 at 11:09pm by Sam

Chemistry!!
A solution has [Al^3+]=8.010−2 M and [HC2H3O2]= 1.10 M. What is the maximum quantity of NaHC2H3O2 that can be added to 200.0 mL of this solution before precipitation of Al(OH)3 begins?
Friday, April 13, 2012 at 11:20pm by John

chemistry
When 0.667 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 108C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. what is the molar heat of reaction, H rxn, for the ...
Wednesday, February 17, 2010 at 6:14pm by blasting

accounting srajmcgain
indicate whether the following items in a bank reconciliation should be: A)Added to the check book blance B) DEDUCTED FROM THE CHECKBOOK C)added to the bank statement balance D) deducted from the bank statement balance 1) deposit of 1,250 that was recorded incorrectly in the ...
Friday, April 10, 2009 at 7:16pm by anonymous

chem
calculate the pH during the titration of 100 mL of .200 M HCl with .400 M NaOH after 0,25, 50, and 75 mL NaOH have been added
Wednesday, March 28, 2012 at 10:03pm by Brynn

Chemistry
In the titration of 20.00 mL of 0.175 M NaOH, calculate the number of milliliters of 0.200 M HCl that must be added to reach a pH of 12,55. I know the answer is 11,9 mL but I don't know how to calculate it.
Friday, November 22, 2013 at 6:04am by Helga

chmistry
When 0.633 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 103C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
Monday, February 12, 2007 at 5:03pm by alexis

chemistry
A buffer is formed by mixing 100 mL of 0.2 M HClO2 and 200 mL of 0.7 M KClO2. What volume of 0.2 M KOH can be added before the buffer capacity is reached?
Wednesday, March 2, 2011 at 6:34pm by Bria

Chemistry
(a)What is the pH of a solution made by combining 200 mL of 0.1 M Lactic Acid with 300 mL of 0.075 M sodium lactate? (b) If 20 mL of 0.4 M HCl is added to the solution from (a) what is the resulting pH?
Tuesday, January 28, 2014 at 10:12pm by Anonymous

Chemistry
A buffer is prepared by mixng 150.0 mL of 0.500 M ammonia, 250.0 mL of 0.200 M ammonium chloride and 600.0 mL of water. To this solution is added 50.0 mL of 0400 M hydrochloric acid. What is the final pH?
Wednesday, December 9, 2009 at 9:37pm by Cathy

chemistry
What volume of WATER MUST BE ADDED to 10.0 mL of 6.0 M NaOH to make a solution that is 0.30 M in NaOH? Assume that the volumes are additive. a. 10 mL b. 190 mL c. 200 mL d. 210 mL e. 500 mL
Monday, March 29, 2010 at 6:30am by lawrence

Physics
Inside an insulated container, a 250-g ice cube at 0C is added to 200 g of water at 18C. (i) What is the final temperature of the system? (ii) What is the remaining ice mass?
Saturday, April 27, 2013 at 10:05am by Meder

Chemistry
If 200. mL of 2.00 M H3PO4 solution is added to 600. mL of 2.00 M NaOH solution, the resulting solution will be ____ molar in Na3PO4.
Tuesday, October 4, 2011 at 3:36pm by Fran

Chemistry
What is the molar heat of reaction? When 0.732 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 119C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention...
Wednesday, February 17, 2010 at 3:47am by Chris

linear programing.
plant warehouse SUPPLY __________1______2______3_______________ 5 8 6 1 250 3 2 3 2 200 5 3 4 3 200 demand 200 300 150 / oh oh..help please how to do this transportation cost problem thank you very much
Tuesday, September 1, 2009 at 4:00am by prowny returns

Math 116
Q1) there are two plans available, but they only have 38 homes available. write an equation that illustrates the situation. use x and y to denote plan 1 and plan 2. A1) X+Y=38 Q2)Plan 1 sells for $175,000 and plan 2 sells for $200,000. All available houses combined are worth $...
Saturday, November 1, 2008 at 7:09pm by Carmen

holy school
CaCO3 + H2 SO4 ------> CaSO4 + CO2 + H2 O 200 g of calcium carbonate are added to 4 L of water. a. What is the molarity of the calcium carbonate solution? b. How many moles of hydrogen sulfate would be needed to react with a 25 mL sample of the calcium carbonate solution? c...
Sunday, March 3, 2013 at 12:00am by mamta

Chemistry --Help 2! :)
Predict whether Fe(OH)2 will dissolve, precipitate, or do neither after: (a) water is added --> dissolve (b) Fe(OH)2 is added--> neither (c) Solid Fe(NO3)2 is added--> precipitate (d) Solid KNO3 is added---> neither I'm given hte answers...but no explanation. I am...
Tuesday, March 9, 2010 at 11:26am by Val

Physics
Ice of mass 51.5 g at -10.2 C is added to 218 g of water at 13.5 C in a 111 g glass container of specific heat 0.200 cal/g-C at an initial temperature of 24.9 C. Find the final temperature of the system.
Tuesday, December 10, 2013 at 1:48pm by BrandiB123456789

chemistry
The solubility of KI is 50 g in 100 g of H2O at 20 ?C. If 110 grams of KI are added to 200 grams of H2O, what would happen?
Monday, June 20, 2011 at 12:14am by Glo

Physics
How much water at 80.0C must be added to 200.g of water at 10.0C to give a final temperature of 36.0cc? I know the answer comes to 1.2x10^-1kg but I need to know how to solve the question... ie: the long work involved.
Thursday, December 8, 2011 at 2:33am by Dorrito

Chemistry
Calculate the pH of the titration of 100.00 mL of 0.200 M HOCI with 0.400 M KOH after 0, 25.00, 50.00, & 75.00 mL of KOH have been added. The Ka for HOCI is .000000035...Please Help!!!!
Saturday, April 17, 2010 at 11:30pm by Need Chem Help

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