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August 29, 2014

Search: calcium carbonate

Number of results: 1,596

Chemistry
What is the silver ion concentration in a solution prepared by mixing 345 mL of 0.352 M silver nitrate with 443 mL of 0.511 M sodium carbonate? The Ksp of silver carbonate is 8.1 × 10-12
March 11, 2013 by CP

college
0.02 g of CaCO3 is dissolved in 1 L of water. Calculate the moles of calcium carbonate that have dissolved in the water, the moles of Ca2+ ions in solution, and the number of Ca2+ ions in solution?
January 27, 2010 by mike

Chemistry
0.02 g of CaCO3 is dissolved in 1 L of water. Calculate the moles of calcium carbonate that have dissolved in the water, the moles of Ca2+ ions in solution, and the number of Ca2+ ions in solution?
January 27, 2010 by mike

Finite Math
A dietitian wishes to plan a meal around three foods. The meal is to include 16,200 units of vitamin A, 4,620 units of vitamin C, and 680 units of calcium. The number of units of the vitamins and calcium in each ounce of the foods is summarized in the table below. Determine ...
September 11, 2011 by Dee

College Chemistry
In this lab: we demonstrated the method of evaporation of a saturated sodium chloride solution. The following question ask: 1) why is sodium chloride chosen for the solute? 2)Suggest reasons why the following were not chosen for the solute? a)Calcium carbonate (CaCO3)= b)...
September 4, 2010 by Tim

CHEMISTRY--PLEASE HELP, URGENT
A saturated solution of CaSO4(aq) is made in a beaker until there is excess calcium sulfate resting at the bottom. Then solid potassium sulfate is added. Which of the following is true? (The Ksp for potassium sulfate is larger than the Ksp for calcium sulfate) a. More calcium ...
April 12, 2010 by Maggie

biology
In humans, dietary calcium helps maintain strong bones and teeth. Calcium is absorbed into the blood stream by the cells that line the small intestine. Bone cells called osteoblasts absorb calcium from the blood and use it to form the mineralized part of bone called bone ...
September 6, 2007 by Jen

Chemistry
Some solid calcium oxide in a test tube picks up water vapor from the surrounding to change completely into solid calcium hydroxide. An observed total initial weight (calcium oxide + test tube) f 10.860g goes eventually to 11.149g. What is the weight of the test tube?
September 25, 2011 by Lucy

Statistics
A researcher wished to test the effect of the addition of extra calcium to yogurt on the "tastiness" of yogurt. Two different yogurts, one with extra calcium and one without the added calcium, were created from the same batch of yogurt. A group of 84 adult volunteers ...
November 21, 2013 by Samantha

DrBob222-Questions
Can you please check these for me. Thank you very much in return:-) For Al2(SO4)3 you gave me Aluminum ion and Sulfate ion. These are the rest: CaCl2 = Calcium ion and Chlorite ion Na2O = Sodium ion and Oxygen ion AgCl = silver ion and chlorine ion Na3PO4 = Sodium ion and ...
April 20, 2010 by Sara

SCIENCE/CHEM
Dr Bob Is it true that only TWO molecules of water are required to balance the equation for the reaction of HCL with Calcium Hydroxide.(calcium chloride is the other product....why??? Thanks andy
May 12, 2010 by Andy

chemistry
what are the errors in the double-indicator titration of (sodium carbonate and sodium hydrogen carbonate) against hydrochloric acid, using Phenolphthalein and Methyl orange as indicator? how can I improve the it?
October 9, 2010 by kay

chemistry
what are the errors in the double-indicator titration of (sodium carbonate and sodium hydrogen carbonate) against hydrochloric acid, using Phenolphthalein and Methyl orange as indicator? how can I improve the it?
October 13, 2010 by kay

Science
An aqueous solution of calcium chloride boils at 101.3. How many kilograms of calcium chloride were dissolved in 1000 g of the solvent?
January 25, 2012 by Nita

chemistry
A sample of calcium nitrate with a mass of 1.00 g was dissolved in water and diluted to 100.00 mL in a volumetric flask. What is the concentration of the calcium nitrate ?
March 6, 2011 by cassie

chemistry
A sample of calcium nitrate with a mass of 1.00 g was dissolved in water and diluted to 100.00 mL in a volumetric flask. What is the concentration of the calcium nitrate ?
March 6, 2011 by cassie

Chemistry
a solution saturated in calcium hydroxide(limewater) has a pH of 12.35. What is Ksp for calcium hydroxide? How do i start this problem. please
April 10, 2008 by LT

chemistry
Only 6.1 mg of calcium oxalate, Ca(C2O4) dissolves in 1.0 L of water at 25 Celsius. What is the solubility product of calcium oxalate?
May 23, 2010 by kris

chemistry
what volume of 0.250 M calcium chloride needs to be added to sodium phosphate to produce 35.0 g of calcium phosphate ?
December 15, 2010 by jenna

chemisty
What volume of 0.250 M calcium chloride needs to be added to sodium phosphate to produce 35.0g of calcium phosphate?
November 29, 2012 by kenny

chemistry
Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 g of ammonium carbonate.
April 16, 2010 by jason

Chemistry
Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 g of ammonium carbonate.
April 16, 2010 by Zoe

Chemistry
Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 g of ammonium carbonate.
April 16, 2010 by Zoe

Ap Chemistry
Hi, I'm working out this question for homework, but i'm a little stuck. How many g of sodium hydrogen carbonate (NaHCO3) and 4.836 g of sodium carbonate must be dissolved in 750 mL of H20 in order to make a buffer with a pH of 10.27?? the ka of sodium hydrogen carbonate is 5.6...
April 22, 2008 by Norman

chemistry!
an aqueous solution of calcium chloride boils at 101.3 degrees Celsius. How many kilograms of calcium chloride were dissolved in 1000.0 g of the solvent??
May 25, 2010 by Ana

Chemistry
Calculate the mass of calcium phosphate that forms when 5.50 x 10 -2 mol of solid calcium chlorate is dissolved in 600.0 mL of 1.00 x 10 -2 M lithium phosphate solution.
February 21, 2012 by Bella

Chemistry
THE MOLAR MASS OF CALCIUM OXALATE,CaC2O4 IS 128G/MOLE. WHAT % OF CARBON IS CALCIUM OXALATE?
July 24, 2008 by Persia

chemistry
using the conversion of mass if the reactant has 4 atoms of calcium how many atoms of calcium will the product have?
February 5, 2012 by beth

Chemistry
How can i explain the key features of the periodic table relate to the conclusions after a titration experiment The experiment was the preperation of a standard solution of sodium carbonate and titration for the equation between hydrchloric acid and sodium carbonate Objective...
October 11, 2010 by Paul

Chemistry 1
Sodium carbonate reacts with a solution of HCl solution with the evolution of gas (CO2) to yield a solution that is neutral. If 0.265 grams of sodium carbonate are required to neutralize 1.00 mL of HCl solution, what mass (in grams) of sodium carbonate will be required to ...
February 5, 2010 by Kay

chemistry
How many grams of calcium chloride would you dissolve in water to make a total .111 M calcium chloride solution with 200 mL final volume?
July 13, 2010 by fiath

chemistry
How could you make the reaction Cu(NO3)2 + NaCO3 -- CuCo3+NaNO3 balanced? You have the formula for sodium carbonate wrong> Na2CO3 The carbonate ion is -2 valence, and Na is +1. Now it will balance.
November 5, 2006 by Carter

Chemistry
I've been studying the transesterification of dimethyl carbonate to diphenyl carbonate, and experimental equilibrium constant (K) values range from 0 to 0.5 at temperatures from 298 to 450 Kelvin. My question is: How do we make a reaction more spontaneous or how do increase K ...
August 29, 2012 by Namie

Earth Science Continued
Please help me with the following questions: 1. A scientist suspected that the increase in the acidity of ocean water could have a devastating effect on organisms such as snails because it could break down calcium carbonate, a chemical that makes up their shells. Which could ...
August 21, 2014 by Brady

Chem titration ph
What arethe pH, pOH, and concentrations of CO3 2- and HCO3 - after 1.000 mL of 0.1500 M HCl is added to 100.0 mL of 0.0100-M sodium carbonate solution? ignore the added1% volume. CO3^-2 + H^+ ==> HCO3^- Calculate mols carbonate to start. Calculate mols HCl to start. ...
October 5, 2006 by Andy

college Chemistry
Write a balanced equation for the dissolution of sodium carbonate (Na2CO3) in water. Find the number of moles of Na+ produced when 0.318 mol of sodium carbonate dissolves. Answer in units of mol.
January 24, 2009 by guy

Chemistry for health science
Considering the neutralization reaction when nitric acid reacts with solid iron(II)carbonate. What is the minimum volume of 2.00 M HNO3 necessary to react completely with 1.06 kg of solid iron(II) carbonate, FeCO3 ?
March 23, 2014 by Anonymous

science
Sodium hydrogen carbonate NaHCO3, also called baking soda, is an active ingredient in some antacids used for the relief of indigestion. Determine the percent composition of sodium hydrogen carbonate.
July 11, 2014 by duane

science
3. A section of the Periodic Table of the Elements is shown. Based on the positions of the elements, the two elements that have the most similar chemical properties are — A. calcium and scandium B. calcium and titanium C. titanium and vanadium D. magnesium and calcium 4. One ...
March 13, 2014 by Anonymous

chemistry
How do you find the molecular weight of hydrogen carbonate and the atomic weight of the unknown metal in the hydrogen carbonate?
October 7, 2011 by Anonymous

Chimestry
(The reaction of calcium hydride and water produces calcium hydroxide and hydrogen as products). How many moles of H_2(g) will be formed in the reaction between 0.90mol CaH_2(s) and 1.33mol H_2O(l)?
September 11, 2012 by Inni

Chemistry
One mole of each of the following compounds is added to water in separate flasks to make 1.0 L of solution. Which solution has the largest total ion concentration? a. aluminum hydroxide b. silver chloride c. sodium chloride d. calcium carbonate e. potassium phosphate I just ...
May 9, 2011 by Sam

chemistry
4.0 g of sodium bicarbonate 84 g/mol) decomposes to form carbon dioxide, water, and sodium carbonate (106 g/mol). What is the theoretical yield in grams for sodium carbonate?
January 26, 2012 by Danae

Chem
1)Which cations should form soluble sulfate compounds from (Sodium, calcium, silver, copper 2)? 2) which anions should form precipitates with barium ions from (sulfate, carbonate and iodide?) 3) which anions should form precipitates with silver ions? Write net ionic equations ...
March 26, 2013 by Katlyn

Chemistry
Determine the mass of calcium hydroxide produced when calcium carbide (CaC2) reacts with 0.64 grams of water according to the following balanced chemical equation: CaC2 + 2H2O -> Ni(OH)2 + NaNO3
April 10, 2012 by Halie

Chemistry
Acid spills are often neutralized with sodium carbonate. For example Na2CO3 (s) + H2SO4 (aq)  Na2SO4 (aq) + CO2 (g) + H2O (l) An instructor dropped a 2.50 L bottle of 18.0 M H2SO4 on a cement floor. How much sodium carbonate would be required to neutralize it?
March 18, 2012 by Elisa

chemistry
the Ksp for CaF2 is 3.9*10-11. assuming that calcium flouride dissociates completely upon dissolving and that there are no other important equilibria affecting the solubility, calculate the solubility in pure water, of calcium floride in m/L and in g/L
October 10, 2010 by anon

AP Chem
An aqueous solution contains 4.50 g of calcium chloride, CaCl2, per liter. What is the molarity of CaCl2? When calcium chloride dissolves in water, the calcium ions, Ca^+2, and chloride ions, Cl^-, in the crystal go into the solution. What is the molar concentration of each ...
November 3, 2008 by Anna

health safety and nutrition
The mineral ____ and vitamins ____ and ____ regulate bone and tooth formation. A) calcium, K, E B) iron, A, D C) magnesium, C, B12 D) calcium, A, D
March 12, 2011 by Anonymous

Chemistry 22
Which one in this pair has the larger radius? Explain a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion
December 12, 2010 by Ivy

Chemistry
Which one in this pair has the larger radius? Explain a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion
December 12, 2010 by Ivy

Chemistry
Which one pair has the larger radius?Explain? a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion
December 13, 2010 by Anonymous

chemistry
1. Calculate the volume of carbon dioxide at 273 K and 1.01 * 10^5 Pa which would be produced when 1.25g of calcium carbonate reacts completely with HCL. and 2. When 41.18 cm^3 of a solution of silver ions with concentration of .2040 mol dm^-3 is added to a solution of XO4 -3 ...
May 19, 2008 by ANn

Chemistry
If a solution of sodium phosphate, Na3PO4, is poured into seawater, precipitates of calcium phosphate and magnesium phosphate are formed. (Magnesium and calcium ions are among the principle ions found in seawater.) Write net ionic reactions for the reactions. Include physical ...
June 27, 2011 by Emily

Chemistry
What is the concentration of a solution of lithium carbonate containing 0.01 mol in 750 mL of solution What volume of 0.01 mol L-1 Li2CO3 solution would contain 0.035 mol lithium carbonate? Give your answer as 2 sig fig (this is technically not correct), followed by a space ...
June 13, 2012 by Preity Zinta

chemistry
explain how to set up: what mass of iron(III) carbonate would be produced if 545 ml of 0.150 M iron(III) choloride were added to a solution containing excess sodium carbonate. Given reaction of 2FECL3(aq) + 3Na2CO3(aq)---- Fe2(CO3)3 (s) + 6 NaCl (aq) thank you
July 2, 2011 by Jamie

Another caffeine from tea question
Can anyone show me the reaction of sodium carbonate with water to produce bicarbonate and hydroxide as sodium carbonate dissolves? And if any, what is the reaction of tannins and caffeine with this solution? Thanks loads!
November 29, 2008 by Scott

chemistry
When aqueous solutions of potassium carbonate and magnesium nitrate are combined, solid magnesium carbonate and a solution of potassium nitrate are formed. The net ionic equation for this reaction is:
March 3, 2014 by Kay

chemistry
In industry, sodium carbonate is produced in two stages whose equations are as follows: NaCl + NH3 + H2O + CO2 à NH4Cl + NaHCO3 2NaHCO3 + heat à Na2CO3 + CO2 + H2O a) What’s the mass of sodium carbonate that can be produced from 1.0 t of sodium chloride? (Assume that the other...
May 26, 2010 by paula

chemistry
Water softeners often replace calcium ions in hard water with sodium ions. Since sodium compounds are soluble, the presence of sodium ions in water does not cause the white, scaly residues caused by calcium ions. However, calcium is more beneficial to human health than sodium ...
January 25, 2010 by M

chem
what precautions should be observed when an aqueous sodium carbonate solution is used to extract an organic solution containing traces of acid? is it that aqueous sodium carbonate is extremely combustible, which can't be exposed to an open flame?
October 28, 2008 by Jason

chem
what precautions should be observed when an aqueous sodium carbonate solution is used to extract an organic solution containing traces of acid? is it that aqueous sodium carbonate is extremely combustible, which can't be exposed to an open flame?
October 28, 2008 by Jason

chemistry
Barium carbonate and nitric acid: BaCO3 (s) + 2HNO3 (aq.) --> Ba2+ (aq.) + 2(NO3-) (aq.) + CO2 (g) + H2O (l) If 25.0mLs of 0.150M nitric acid was used, how many grams of barium carbonate would be required for complete reaction?
July 2, 2013 by Jill

Chemistry
Some antacid tablets actually contain a mixture of calcium carbonate and magnesium hydroxide (though they usually have the same “strength” as those that only contain CaCO3). If this had been the case for the antacid you tested, but you still assumed it only contained CaCO3, ...
April 2, 2013 by Jim

chem
Ammonium carbonate (solid) decomposes when heated to produce three gaseous products - ammonia, water, and carbon dioxide. 1. Write the balanced equation for the reaction. 2. Suppose that ammonium carbonate is heated to 500 K in a sealed vessel. At equilibrium there is still ...
May 13, 2010 by jake

Chemistry
Given a 10.0g sample of MgCO3*5H2O, what weight of anhydrous magnesium carbonate can be obtained after driving off the water? The GFM of the sample is 174.3amu. Now.. how do I go about finding the weight of the magnesium carbonate?
November 9, 2009 by c

MATH
a molecule of sodium carbonate contains 2 atoms of sodium to every 3 atoms of oxygen. could a compound containing 12 atoms of sodiumand 15 atoms of o2 be na carbonate explai
March 4, 2014 by AMY

college chem
Ammonium carbonate (solid) decomposes when heated to produce three gaseous products - ammonia, water, and carbon dioxide. 1. Write the balanced equation for the reaction. 2. Suppose that ammonium carbonate is heated to 500 K in a sealed vessel. At equilibrium there is still ...
May 18, 2010 by jake

chemistry
Nitric Acid + Calcium hydroxide ---> calcium nitrate + water I wrote it as : NO3 + Ca(OH)2 ---> Ca(NO3)2 + H20 Did I write it correctly? Where should I put my charges? I also have big time trouble balancing this one.
February 4, 2009 by Chopsticks

chemistry
The calcium phosphate in a phosphate rock weighing 7.4kg was found to be 477.92mg. What is the concentration of calcium and phosphorous in ppm in the rock sample.
March 29, 2011 by Adeyemi

Gen Chem
Ok, how about this one? A solution contains ammonium ions and calcium along with some anions, how would you separate the ammonium ions from the calcium??
April 11, 2010 by Alex

Chemistry
Calcium reacts with water according to the chemical equation below: Ca + 2H2O--> Ca(OH)2 + H2 All but which reaction is expected to occur on the basis of the reaction of calcium and water?
October 25, 2011 by Chelsea

Chemistry
Calcium reacts with water according to the chemical equation below: Ca + 2H2O--> Ca(OH)2 + H2 All but which reaction is expected to occur on the basis of the reaction of calcium and water?
October 25, 2011 by Chelsea

chemistry
if 2.0 grams of sodium sulfate are mixed with 2.0 grams of calcium chloride to produce calcium sulfate as a precipitate, which compound is the limiting reactant
October 19, 2013 by Anonymous

chemistry
how do i write a net ionic equation for Lead (II) Nitrate and Sodium Carbonate react to form Lead Carbonate and Sodium Nitrate??
December 11, 2007 by caren

chem.
Hydrogen Chloride and Sodium Carbonate react to produce Hydrogen Carbonate and Chloride Sodium how do i write that in net ionic form?
December 11, 2007 by michelle

intro to chemistry (college)
A 64.8 g mixture of the compounds potassium sulfide and calcium oxide is 17.1 % by mass potassium sulfide. The compound calcium oxide is 71.5 % by mass calcium. Calculate the mass (g) of oxygen in the mixture. mass % = mass part/mass whole x 100. I attempted the problem by ...
May 3, 2012 by James

Chemistry
Shown below is the chemical equation for the thermal decomposition of calcium carbonate. CaCO3(s) <-> CaO(s) + CO2(g) H°rxn = 175 kJ How will the amount (not concentration) of CaCO3(s) change with the following stresses? CO2(g) is removed? Decrease, Increase or No Change...
October 18, 2010 by Adam

chemistry
Please calculate the solubility of calcium sulfate in 0.010 mol/L calcium nitrate at SATP. This very question has been bugging me all weekend. Can some one please solve this quesiton it would really be appreciated.
March 30, 2008 by Marcus

Chemistry
Ca3(PO4)2 + 3 H2SO4 -> 3 CaSO4 + 2 H3PO4 What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0 kg calcium phosphate with 1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)?
August 16, 2010 by Anonymous

Chemistry
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: A 2.00-g sample of is reacted with 1.93 g of . How many grams of water remain after the reaction is complete? 0.0714 1.29 0.00 1.04 0.00396
February 13, 2012 by Martese

Chemistry
Teeth and bones are composed, to a first approximation, of calcium phosphate, Ca3(PO4)2(s). The Ksp for this salt is 1.3*10^-32 at 25°C. Calculate the concentration of calcium ion in a saturated solution of Ca3(PO4)2.
November 21, 2010 by Amy

Chemistry
Teeth and bones are composed, to a first approximation, of calcium phosphate, Ca3(PO4)2(s). The Ksp for this salt is 1.3 10-32 at 25°C. Calculate the concentration of calcium ion in a saturated solution of Ca3(PO4)2. Please, help!
May 9, 2011 by Laura

Chemistry
Suppose we are dealing with calcium chloride as opposed to the chemical in the video. If a solution contains 70 g of calcium chloride per 100 g of water at 25 degrees Celsius, is the solution unsaturated, saturated, or supersaturated?
May 19, 2013 by Moise

Chemistry
Suppose we are dealing with calcium chloride as opposed to the chemical in the video. If a solution contains 70 g of calcium chloride per 100 g of water at 25 degrees Celsius, is the solution unsaturated, saturated, or supersaturated?
July 8, 2013 by Steptim

Grade 12 Chemistry
Determine the concentration of a calcium chloride solution if 1.75 L of the solution contains 0.125 mol of calcium chloride.
March 22, 2011 by Rachel

Chemistry
If the 3 moles of Calcium Nitride was then dissolved in 2 L of liquid ammonium what would the molarity of the Calcium Nitride /ammonium solution be?
April 15, 2012 by moata

chemistry
Potash is composed mainly of potassium carbonate, K2CO3. If 1.000g of potash reacts with sulfuric acid to produce 145 mL of carbon dioxide gas at STP, what is the percentage of potassium carbonate in the marble sample? K2CO3 + H2SO4 ==> K2SO4 + H2O + CO2
November 28, 2011 by Monique

Chemistry
A student performed an anaysis of a samply for its calcium content and got the following results : 14.92% , 14.91%, 14.88% , 14.91% the actualy amount of calcium in te sample is 15.70%. What conclusion can you draw about the accuracy and precision of these results? --im really...
July 15, 2008 by Mandy

AP Chem
Consider the following unbalanced equation: Ca3(Po4)2+H2SO-->CaSO4+H3PO What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0 kg calcium phosphate with 1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)? I'm so lost. Please help.
November 4, 2008 by Robyn

chemistry
write a balanced equation for the reaction of copper(II) sulfate with sodium carbonate to produce copper(II) carbonate and sodium sulfate
February 16, 2011 by valentina

chemistry
The hydrogen carbonate ion is formed when an H+ ion combines with the polyatomic ion CO32-. What is the net charge on the hydrogen carbonate ion? A. 2- B. 1- C. 1+ D. 2+ A
November 9, 2012 by Keri

Chemistry
1.Write a mathematical equation that can be used to calculate the concentration of the HCl solution after the standardization procedure (Titration #1). 2. Using LeChatelier’s principle, predict whether [OH-] in the calcium hydroxide/0.050 M NaOH solution is expected to be ...
April 16, 2012 by Cassie

bio!
Low levels of calcium ions in the blood cause what? Low calcium can cause several things: Mucsle weakness and twitching Numbness of fingers and toes Seizures Heart arrhythmias (abnormal beating of the heart)
October 31, 2006 by bio

Chemistry
Elemental calcium is produced by the electrolysis of molten CaCl2. a) What mass of calcium can be produced by this process if a current of 7.5 * 10^3 A is applied for 48h? Assume that the electrolytic cell is 68% efficient. b) What is he minimum voltage needed to cause the ...
April 10, 2014 by ACDub

Chemistry
When 3.00 g potassium carbonate (K2CO3 ) was mixed with 20.0 mL of hydrochloric acid (HCl, 4.0M) in a calorimeter, the temperature raised 3.0 degrees Celsius. B. Calculate the enthalpy change (H) of the reaction for per mole patassium carbonate. Assume the specific ...
April 15, 2012 by Luis

chemistry
I have found a balanced redox equation for removal of silver sulfide using sodium hydrogen carbonate in aluminium to say: 2Al + 3Ag2S + 6H2O --> 6Ag + 2Al2(OH)3 + 3H2S What happens to the Na and C component of the sodium hydrogen carbonate? And why is it not included on LHS...
November 26, 2010 by bob

Calculus
At STP, 1.00 g of calcium is placed into an acidic solution, and 407 mL of hydrogen gas is collected. What is the ratio of moles of calcium consumed to moles of hydrogen produced? a)1.37:1.00 b)1.00:1.64 c)0.928:1.00 d) 0.500:1.00 Is the answer A, if so, can you explain the ...
September 22, 2008 by George

chemistry
sodium oxide reacts with carbon dioxide to form sodium carbonate. How much carbon dioxide is needed to produce 79g or sodium carbonate?
November 25, 2012 by Anonymous

Chemistry
Hello, please could someone help? Will calcium chloride (CaCl) granules be a suitable drying agent for drying hydrogen selenide (H2Se) gas? Or, will the calcium chloride granules also absorb the H2 from the H2Se? Thank you. Calcium chloride is CaCl2. It is an excellent drying ...
January 30, 2007 by Junior

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