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July 29, 2014

Search: How many mL of .210 M HCl are needed to react completely with 35.0 mL of 0.101M Ba(OH)2

Number of results: 9,943

chemistry
The titration of HCl with NaOH is represented by the equation HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) What volume of 0.100 M HCl is required to titrate 50.0 mL of 0.500 M NaOH?
December 6, 2011 by kathy

chemistry
how many ml of a 2M solution of HCl would be needed to neutrilize 2ml of a 5M solution of KOH?
April 26, 2011 by jackie3

Chemistry
How much acid is needed to neutralize a 5L solution with a pH of 12.5. The acid available is 1 N HCL.
February 14, 2013 by Ryan

Chemistry
How many milliliters of a 0.20 M KOH are needed to completely neutralize 90.0 milliliters of 0.10 M HCl?
May 5, 2010 by Danny

chemistry
how many grams of HCL is needed to produce 200 grams of hydrogen?
April 26, 2014 by Anonymous

Chemistry H
60.0 grams of Th-210 with a half life of 50,000 years is allowed to decay for 250,000 years. How much of the original quantity remains? In addition, Th-210 decays via beta emission. Write the equation for its transmutation.
June 20, 2013 by c

chemistry
how many drops of 0.5M NaOH are needed to neutralize 10 drops of 1.0M HCl? What would be the pH of the neutral solution?
May 2, 2010 by kristy

chemistry
how many moles of HCl are needed to react with 2.3 moles of Zn in the following reaction? 2HCl + Zn --> ZnCl2 + H2
July 6, 2010 by Anonymous

chemistry
How much of a 0.25 M NaOH solution is needed to neutralize 100 mL of a 0.15 M HCl solution? The units are mL
October 3, 2010 by jazmin

Chemistry
Can you show me the calculation? How many ml of a 2 M solution of HCL would be needed to neutralize 2 ml of a 5 M solution of KOH?
April 27, 2011 by Tia

chemistry
A flask containing 5ml of 3M hcl solution required 14.45ml of 1M NAOH for titration. How many moles of hcl are present in the solution. The density of 3M hcl is 1.05g/ml My calculation 0.005 x 3 = 0.015m 0.01445 x 1 = 0.01445m Who helps me to solve it
September 2, 2012 by Fai

physics
The leg and cast in the figure below weigh 210 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 125 N. Determine the weight w2 and the angle needed so that no force is exerted on the hip joint by the leg plus cast. 1 N 2
October 5, 2010 by Anonymous

Chemistry still don't understand the answer
How many ml of a 2 M solution of HCL would be needed to neutralize 2 ml of a 5 M solution of KOH?
April 28, 2011 by Tia

Chemistry
How many milliliters of a 0.66 M HCl solution are needed to react completely with 1.9 g of zinc to form zinc(II) chloride?
October 4, 2011 by Anon

Chemistry
How many milliliters of a 0.81 M HCl solution are needed to react completely with 2.2 g of zinc to form zinc(II) chloride?
September 29, 2012 by Emily

chemistry
How many mL of 0.416 M of HCl are needed to dissolve 8.68 g of BaCO3? 2HCl(aq)+BaCO3(s)=BaCl2(aq)+H2O(l)+CO2(g)
September 29, 2013 by christa

Science collage
A jetliner lands at speed of 210 km/h and breaks at rate of 20 km/h/s . If the jatliner travels at a constant speed of 210 km/h for 1s after landing before applying the breakes . What is the total displacement of the jetliner between couchdown on the runway and coming to rest ?
January 4, 2012 by Aisha

chemistry
Balance the reaction below in acidic conditions: IO3- + I- --> I2 What volume of 0.352 M HCl is needed to produce 2.48x10-3 moles of iodine, I2, with an excess of KlO3 and Kl?
December 14, 2010 by Sarah

math
What is the interest on $600 for 5 years is $210.What is the percentage rate? 600 x rate x 5 yrs = 210. Solve for rate, then multiply by 100.
November 11, 2006 by nae

math check
Round 210,290,290,290.21029 to the nearest ten million 210,300,000,000
February 16, 2014 by Gio

Chemistry
How much Ba(OH)2 is needed to neutralize 3.2 moles of H2SO4 and 4.5 moles of HCl mixed together in 755 mL of water?
October 24, 2010 by Lindsay

chemistry
How many milliliters of 0.237 M HCl are needed to react with 52.2g of CaCO3? 2HCl(aq) + CaCO3(s) --> CaCl2(aq) + CO2(g) + H2O(l)
July 6, 2012 by Jason

chemistry
if 16.o ml HCL is needed to neutralize from a 2.25g sample of organic material, calculate the mass percentage of N in the sample
October 13, 2012 by allison

chemistry
Calculate the pH at each stage in the titration of 25.0 ml 0.10 M KOH(aq) with 0.25 M HCl(aq). 1. Initiall ( before titration). 2. After addition of 5 ml of HCl. 3. After addition of 9.5 ml of HCl. 4. At the equivalent point. 5. After addition of 12 ml of HCl
April 30, 2011 by jonah

Chemistry Lab
A student who is performing this experiment pours an 8.50mL sample of saturated borax solution into a 10mL graduated cylinder after the borax has cooled to a certain temperature, T. The student rinses the sample into a small beaker using distilled water, and then titrates the ...
March 13, 2013 by ConfusedStudent

Chemistry
A 20.0 ml sample of an unknown HCl solution requires titration with 15.0ml of 0.1MNaOH solution to reach equivalent point. What is the concentration of the HCl solution? HCl + NaOH H2O + NaCl A. 0.000075 B. 75 C. none of these D. 0.075
March 5, 2011 by Aaron

chemistry- pH, neutralization
What volume of NaOH was required to have neutralized the HCl. HCl + NaOH --> H2O + NaCl There no other information given in the problem except in later questions like the NaOH had 0.1 M and that there was 50.00 mL of HCl.
February 2, 2012 by laura

pH- really hard one
What is the pH of the solution created by combining 1.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? NaOH + HCl ==> NaCl + H2O So all the NaOH is neutralized leaving NaCl, which will not affect the pH either way, ...
April 15, 2007 by Christine

chemistry
suppose u r given a conc soln of hcl which is known to be 37% hcl & has a soln density of 1.19g/ml. What is the molarity and molality of hcl in this soln
January 26, 2013 by oluchi

Chemistry
how many milliliters of a 0.78 M HCl solution are needed to react completely with 6.4 g of zinc to form zinc(II) chloride? Answer in units of mL.
October 5, 2010 by Nathan Espinosa

Chemistry for Engineers
How many mL of .2475M Sr(OH)_2 solution are needed to neutralize 25 mL of 0.1542M HCL solution in the reaction 2HCl + Sr(OH)_2 -> SrCl_2 + 2H_2_O
October 11, 2011 by Austin

Science
If you have a 12M container of HCl avaliable. How much of this solution is needed to make up a 5.0L solution of 0.10M concentration?
May 7, 2012 by Sue

chemistry
How many milliliters of a 0.16 M HCl solution are needed to react completely with 4.8 g of zinc to form zinc(II) chloride? Answer in units of mL
September 19, 2012 by cheri

AP Chemistry
How many milliliters of a 0.62 M HCl solution are needed to react completely with 4.7 g of zinc to form zinc(II) chloride? Answer in units of mL
September 10, 2013 by Gabriella

Science
Al(OH)3(s) + HCl(aq) AlCl3(aq) + H2O(l) How many moles of HCl are required to react with 0.470 g of Al(OH)3 in the above unbalanced reaction? Use at least as many significant figures in your molar masses as in the data given. mol HCl What mass of HCl is required? How many ...
November 16, 2011 by Megan

chemistry
Hello. In the class, we did the experiment to calculate the value of Kc for the following reaction: CH3COOH+CH3CH2OH CH3COOCH2CH3+H2O we measured the mass for 5 cm^3 of all 5 compound above: CH3COOH 5.236 g CH3CH2OH 4.021 g CH3COOCH2CH3 5.020 g H2O 5.020 g HCl 5.098 g when ...
November 1, 2008 by masaya

chemistry
if it requires 35.0 milliliters of 0.50 molar NaOH to neutralize 25.0 milliliters of HCl, what is the concentration of the HCl solution? Balanced equation: NaOH + HCl yields NaCl + H2O
November 17, 2010 by smith

Chemistry*
The following equation is given: S2O3 -2 + 2H +1 ---> S + SO2 + H2O [HCl] = 2 mol/L [Na2S2O3]= 0.3 mol/L what is the concentration (mol/L) of H+ if you were to add: a) 20 mL of HCL with 5 mL Na2S2O3 & with 5 mL H2O b) 15 mL of HCl with 5 mL Na2S2O3 & 10 mL H2O c) 7.50 mL of...
November 4, 2010 by Stephanies

Analytical chemistry
What is a pH of 20 mL of 0.08 M NH3 added to 40 mL of 0.04 M HCl? NH3 + HCl = NH4+ + Cl- c(NH3)=(0.02L * 0.08M)/0.06L= 0.02667 M c(HCl)=(0.04L * 0.04M)/0.06L= 0.02667 M c(NH4+)=c(HCl) Kb=[NH4+][OH-]/[NH3] Kb=1.76*10^(-5) So i tried to calculate it like this: Kb=[OH-] pOH=4....
September 2, 2013 by Gloria

chemistry
If you react 25.25 g of Na2CO3 with 50.0 mL of 6.0M HCl, answer the following questions: Na2CO3 + 2 HCl -> 2 NaCl + H2O + CO2 question: a) How many moles of HCl do you need to react completely with the 25.25 g of NaCO3? b) What is limiting reagent?
September 29, 2010 by Sarah

Chemistry
For the reaction: H2(g) + Cl2(g) HCl(g) (is this balanced?) calculate the mass, in grams of H2 needed to react with 25.0g Cl2. A. none of these B. 25.0 C. 0.711 D. 0.353
March 5, 2011 by Anthony

MAT 116
A moon is about 210,000 miles from the planet it orbits. Write in scientific notation. If a rocket traveled at 3 x 10^4 miles per hour, how long would it take for it to reach the moon from the planet? Write the number 210,000 in scientific notation. 210,00 = It would take the ...
September 25, 2012 by CC

Chem
Ca(s) + 2H+(aq) → Ca2+(aq) + H2(g) An experiment is performed to determine the volume of hydrogen gas produced when calcium reacts with excess HCl(aq) as represented by the net ionic equation above. A 0.0720 g sample of pure calcium and a solution of 1.0 M HCl(aq) were ...
April 23, 2013 by Jess

Chemistry
prepare some 0.1 HCl by diluting the appropriate volume of stock 'conc' HCl to 1L. The stock acid is 37.4% HCl by weight and has a density of 1.19g/mL . Measure out the required volume with a graduated clyinder
September 13, 2012 by chris

chemistry
Volume of distilled water used 12.09 mL Volume of HCl added 0.87 mL Concentration of added HCl 1.979 M pH of diluted HCl solution ___________________
July 30, 2013 by faruk

Chemistry
1. What does 'the time taken to reach completion decreases if 20cm^3 of hcl containing 4mol/dm^3' means? How to work out to find the concentration? 2(a)What does concentrated hcl means? (b)What does dilute hcl means? Which will react faster or slower / a or b? Thanks sooooo ...
October 30, 2011 by StuartKess

chemistry
Given the following equation: Mg(s)+2HCl(aq) goes to MgCl2(s)+H2(g) How many grams of hydrogen chloride (HCl) are needed to produce 200g of hydrogen H2?
January 17, 2011 by Jasmine

AP CHEM
HIO3 + FeI2 + HCl --> FeCl3 + ICl (in acidic solution) Show and label the two balanced half-reactions (oxidation and reduction). Add H2Os, H+s or OH-s as needed.
October 23, 2010 by dylan

college
HIO3 + FeI2 + HCl --> FeCl3 + ICl (in acidic solution) Show and label the two balanced half-reactions (oxidation and reduction). Add H2Os, H+s or OH-s as needed.
October 23, 2010 by jillian

CHEMISTRY
do you agree that HCL is the beast choice for a substance that has both dipersion forces and dipole-dipole forces ? The choices I have are : Br2 HCl H2 CO2 BCl3 HCL is the most sensible answer. Do you reckon so too? thanks andy
May 11, 2010 by Andy

chemistry
The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 65 mL of 0.145 M HCl is i solved it but my answer is wrong. the right one is 1.97. am i missing a step? moles of HCl left over = (moles of HCl) ( moles of KOH) moles of HCl left over = (0.009425 mol) ( 0....
November 23, 2010 by ben

Ap chemistry
how many milliliters of a 0.46 M HCl solution are needed to react completely with a 6.4 g of zinc to form zinc (ii) chloride answer in mL Help please :( I was absent and dont know where to start
September 10, 2012 by Chasm

chemistry
if 53.0mL of 0.150M of HCl is needed to neutralize all the NH3 from a 2.28g sample of organic material. what is the mass percent of notrogen in the sample?
November 1, 2012 by lisa mendez

chemistry
Question about titration calculations in analysis of antacids lab. We did a lab yesterday with antacids, HCl and NaOH and I'm having trouble doing the calculations. The information known is the following: 1)0.10M NaOH 2)0.10M HCl 3)Mass of Antacid .22g 4)Volume of NaOH ...
March 11, 2010 by Mindy

Chemistry
Question: A volume of 26.00ml of 4.30 M. HCL is mixed with 33.70 ml of 10.80 M H3PO4 s mixture is diluted to 1.00 liter with distilled water. A 50.00 ml portion of this diluted mixture is than titrated with .2200 M. NaOH. a) compute the concentration of phosphoric acid after ...
April 19, 2009 by Eliz

Chemistry
Antacid neutralizes stomach acid by the following reaction: Mg(OH)2 + 2HCl -----> MgCl2 + 2H2O Calculate the amount of Mg(OH)2 (in grams) needed to neutralize 2.5 grams of HCl.
March 9, 2008 by Allie

Chemistry
If 1.0L of spilled 1M HCl needed to be neutralized using solid sodium carbonate, how many grams of solid would be required? a)53g b)106g c)1060g d)530g
November 3, 2010 by Kelsey

Chemistry
What volume of .300 M CaCl2 is needed to react completely with 40.00 Ml of .200 M H2PO4. according to the following equation 3 CaCl2 (aq) + 2 H3PO4 (aq)-> Ca3(po44)2 + 6 HCL (aq)
June 7, 2011 by Vinny

Chemistry
A 0.450-gram sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is: CaCO3(s)+2HCl(aq) -> CaCl2(aq) + H2O(l) + CO2(g) The excess HCl(aq) is titrated by 9.75 mL of 0.125 M NaOH(aq). Calculate the mass percentage of CaCO3(s) in ...
April 10, 2012 by Katherine

Chemistry
I have troubles with a titration of NaOH and HCl. The volume of the HCl is 30 ml and its concentration is 0.1 mol per liter The volume of the NaOH is 25 ml and the concentration is to be worked out. I understand that the reaction ratio for HCl to neutralize NaOH is 1:1. But ...
May 17, 2010 by Jazz

chemistry
you extract 10 g of benzoic acid from an ether solution with aqueous NaHCO3 what is the min amount of concentrated HCl (37% by w/v%) that would be needed to convert the sodium benzoat back to free energy? (answer: 8.2 mL) I know that the 37% is basically 37g/ 100ml but how ...
October 26, 2009 by Anonymous

chemistry
What is the concentration of ammonia in a solution if 24.20 mL of a 0.1140 M solution of HCl are needed to titrate a 100.0 mL sample of the solution?
November 21, 2012 by Victoria

chemistry
What is the concentration of ammonia in a solution if 24.20 mL of a 0.1140 M solution of HCl are needed to titrate a 100.0 mL sample of the solution?
November 23, 2012 by Victoria

chem
I can't seem to figure this out! I know I have to use mass to mass conversions though. Can someone help me out? Hydrochloric acid can dissolve solid iron according to the following equation: Fe + 2HCl to form FeCl2 + H2 a) How much HCl in grams would you need to dissolve a 2.8...
March 1, 2007 by Abby

Chemistry
What volume of a .500 M HCl solution is needed to neutralize each of the following: 10 ml of a .300 M NaOH solution 10 mL of a .200 M Ba(OH)2 solution
March 8, 2011 by Monty

chemisty
What volume of HCl gas at 25◦ C and 1 atm should be bubbled into 375 mL of a 0.680 M aqueous solution of HClO4 so that the pH of the resulting solution is 0? Assume that all the HCl dissolves and that the volume of the solution does not change with the addition of HCl.
April 3, 2012 by Clayton

Chemistry
What is the concentration of ammonia in a solution if 22.35mL of a 0.1145M solution of HCl are needed to titrate a 100.0mL sample of the solution?
November 8, 2010 by Amanda

chemistry
. If 20.0 mL of a 0.10 M HCl solution is mixed with 10.0 mL of a 0.25 M HCl solution, what is the final concentration of HCl after the two solutions are mixed?
September 18, 2007 by sarah

Chemistry: Molarity
4.82 mL of a 0.262 M NaOH solution reacts completly with 4.79 mL of HCl solution according to the balanced chemical reaction shown below: HCl (aq) + NaOH (aq) -> NaCl*aq) + H2O (I) What is the molarity of the HCl solution? 4.82 x (1L/1000 mL) = .00482L 4.79 x (1L/1000 mL...
March 1, 2009 by Bob

Chemistry
0.0158L of 0.25M HCL is needed to nutralize 22.0ml of a potassium hydroxide solution. Write the neutralization reaction then calculate the molar concentration of the KOH solution?
September 6, 2012 by Donna

chemistry
In a titration experiment, 22.00mL of a NaOH solution are required to neutralize 24.02 mL of a 0.1094 M HCL solution. what is the molarity of H+ in the HCL solution? (same as the molarity of HCL)
November 9, 2011 by sari

Chemistry
2 NO(g) + 2 H2(g) --> N2(g) + 2 H2O(g) Reactant Concentration(mol/L) and Rate of Appearance of N2 [NO] [H2] (mol/Ls) 0.420 0.122 0.136 0.210 0.122 0.0339 0.210 0.244 0.0678 0.105 0.488 0.0339 What is the rate constant?
May 15, 2011 by Kat

chemistry
What is the pH of the solution created by combining 2.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL of NaOH pH w/HCl pH w/HC2H3O2 2.80 ? ? okay, so i tried m1v1=m2v2 and when i got m2 i would input it in -log(H+) to...
July 9, 2008 by UN

chemistry
it is found that 23.8 ml of 1 x 10^-3 M Sr(OH)2 is required to titrate 10.0 ml of an HCl soln. A) what is the concentration of the HCl soln? B) what is the pH of the HCl soln?
May 18, 2010 by jared

chem2
A small piece of zinc is dissolved in 22.29 mL of 0.968 M HCl. Zn (s) + 2 HCl (aq) ----> ZnCl2 (aq) + H2 (g) At the end of the reaction, the concentration of the 22.29-mL sample is redetermined and found to be 0.691 M HCl. What must have been the mass of the piece of zinc ...
September 22, 2008 by fru

chemistry
titration question: How many moles of HCl must have been present in the 25mL of HCl solution in the 2 trials? Given: Trial 1: V of HCl= 25.00mL, V of NaOH used=29.50mL and M of NaOH=0.18M Trial 2: V of HCl=25.00mL, V of NaOH used=28.50mL and M of NaOH=0.18M
October 28, 2013 by robyn

math
If a stone is tossed from the top of a 210 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 10t + 210, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth...
June 20, 2011 by Taina

Chemistry
3.25g of zinc was added to 50cm^3 of a 4.0 molar dm^-3 HCl. When the reaction was completed the temperature rose by 28 degrees celcius. (a) Is the reaction exothermic or endothermic? (b)All the zinc dissolve in this reaction. How many moles of zinc reacted? (c) How many moles ...
March 24, 2014 by Jessica

chemistry
We are determining the molarity of HCl by titration of HCl. What would be the complete equation and the net ionic equation? THanks What are you titrating it with? Won't that make a difference in the equation we write? It's titration of HCl with NaOH. molecular equation: HCl + ...
September 17, 2006 by bria

Chemistry
Concentrated hydrochloric acid is a 38% solution of hcl in water and has a density of 1.18g/ml. How many milliliters of concentrated hydrochloric acid are needed to prepare 500ml of 1:200 hcl solution. My calculation 1.18g/ml x 1000ml x 0.38/36.46 = 12.3M 12.3M = 500ml x 1:200...
August 19, 2012 by Fai

Chemistry
Which of the following result in buffered solutions when equal volumes of the two solutions are mixed? a.) .1 M HCl and .1 M NH4Cl b) .1 M HCl and .1 M NH3 c.) .2 HCl and .1 M NH3 d.) .1 M HCl and .2 M NH3 By def. I know that a buffed solution is made from a weak base and it's...
April 9, 2013 by Marcus

Chemistry
In 1 antacid tab neutralizes 6.84 mmol of HCL (36.46 g/mol). How many tabs are needed to neutralize 125 mL of stomach acid. Assume [H3O+] = 0.10 mmol/mL. I have no idea where to go with this. Any formula would help.
December 5, 2012 by Terry

Chemistry
If 1 antacid tab neutralizes 6.84 mmol of HCL (36.46 g/mol). How many tabs are needed to neutralize 125 mL of stomach acid. Assume [H3O+] = 0.10 mmol/mL. I have no idea where to go with this. Any formula would help
December 5, 2012 by Terry

chemistry
if you have one mole of CH3CH3(g) + 2 moles of Cl2 (g) and form one mole of C2H4Cl2 (l) + 2 moles of HCl (g) assuming a 90% yield calculate the amount of each reactant needed to form 1.5 kg of product I started the problem following the rules from the chemistry stochiometry ...
August 30, 2010 by noell

HCl - Chem
Assume you had a very magnified view of a solution of HCl that allowed you to "see" the HCl. Draw this magnified view. If you dropped in a piece of magnesium, the magnesium would disappear and hydrogen gas would be released. Draw this out using symbols to represent the ...
January 13, 2007 by Gil

chemistry
how many grams of H2 (g) are produced by the reaction of 1.35 g Al with 75.0 mL of 3.44 M HCl Here is the way to do most of these stoichiometry/limiting reagent type problems. Step 1. Write a balanced chemical equation. 2Al + 6HCl ==? 3H2 + 2AlCl3 Step 2. Convert what you have...
September 24, 2006 by brian

physics
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 85.0 km/h, 12.0 min at 95 km/h, and 35.0 min at 30.0 km/h, and spends 35.0 min eating lunch and buying gas. Determine the average speed for the ...
September 13, 2011 by Anonymous

chemistry-0.1NHCl
Hi, A bottle of concentrated Hydrochloric acid (HCl) has the following information stated on it: - Hydrochloric acid 37% 1L ~ 1190kg How do I prepare 0.1N HCl from this concentrated HCl?
December 18, 2008 by jennie

Chemistry
If 18.8mL of 0.800M HCL solution are needed to neutralize 5.00mL of a household ammonia solution, what is the molar concentration of the ammonia? How do I solve this? Thank you.
September 29, 2010 by Erin

Chemistry - titration lab
Hello. For my chemistry of solutions class, we had a titration lab where we titrated NaOH into an HCl + H2O mix. This was a preparatory titration for the next one consisting of the hydrolysis of ethyl acetate into acetic acid with H+ ions as a catalyst (in our case the HCl). ...
July 31, 2012 by Robertq

Chemistry
Chlorine gas may be easily prepared in the lab according to the reaction: 2KMnO4(s)+ 16HCl(aq)-> 2 MnCl2(aq)+5Cl2(g)+ 8H2O(l)+ 2KCl(aq) What mass of HCl is needed to prepare 1 mole of Cl2 gas?
November 1, 2009 by Christina

math
Draw a venn diagram to illustrate the following. In a shop 50 cars were inspected and it found that 23 needed new brakes and 34 needed new tires. 3 needed no services at all how many needed new brakes and new tires? How many only needed brakes? Please help
December 9, 2011 by kia

chemistry
Magnesium reacts with HCl(aq) to form MgCl2 and H2(g) ____ Mg(s) + ____ HCl(aq) -----> ____ MgCl2(aq) + ____ H2(g) The following data was collected for the above reaction: Mg (g) 5% (m/v) HCl (ml) H2 gas produced (ml) 0.50 10 167 0.50 20 333 0.50 30 500 0.50 40 500 0.50 50 ...
January 29, 2010 by richard

chemistry
An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced. What is the ratio of TRIS base to TRIS acid at the start of the ...
February 2, 2008 by alan

chemistry
Trial 1 Volume of HCL is 2.51 mL Molarity of the HCL is 0.10 M Mols HCL = L x M = 0.0251 L x 0.10 M = 0.00251 mol/L The equation for the titration is Ca()H)2 + 2HCL --> CaCl2 + 2H2O I will now take 0.5 mols HCl to give mols of OH- 0.00251 mol/L x 0.5 = 0.001255 mol/L mols ...
April 4, 2008 by Tim's Titration Lab

Chemistry
OK I just need help with two final problems that I am stuck on: The problem states the calcium carbonate in limestone reacts with HCl to produce a calcium chloride solution and carbon dioxide gas CaCO3(s)+2HCl(aq)-->CaCl2(aq)+H2O(l)+CO2(g) 1)Find how many moles of CO2 form ...
December 9, 2010 by TT

chem
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 1.0 M HCl is required to react completely with 4.00 g of magnesium i did 4.00g x (mol/24.31 g Mg) x (2 mol HCl/1 mol Mg) x (L/!.0 mol HCl) = .329 L why ...
March 26, 2009 by Anon

chemistry
A flask containing 5.00ml of 3M hcl solution required 14.45 of 1.00M naoh for titration. How many moles of hcl are present in the solution? The density of 3M hcl is 1.05g/ml. My calculation 0.005L x 3M = 0.015 moles 0.01445 x 1m = 0.01445 moles Who helps me to solve it
September 2, 2012 by Fai

chemistry lab
An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced. What is the ratio of TRIS base to TRIS acid at the start of the ...
February 2, 2008 by alan

Chemistry
4. A 5.309 g antacid tablet, with CaCO3 as the active ingredient, was mixed was 30.0 mL of 0.831 M HCl. It took 15.3 mL of 0.7034 M NaOH to neutralize the excess acid. a) Calculate the volume of HCl neutralized by the NaOH. b) Calculate the amount of HCl (in mL) neutralized by...
April 2, 2013 by Josh

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