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January 19, 2017

# Search: zinc sulfate solution

Number of results: 22,854

chemistry
pure zinc metal into a solution of copper(II) sulfate, the zinc will slowly dissolve to produce zinc sulfate solution, and the copper(II) ion of the copper(II) sulfate will be converted to metallic copper. Write the unbalanced equation for this process. (Include states-of-...
October 2, 2010 by astoeck

chemistry
write out the reaction, predicting products where applicable. Zinc metal is added to a solution of copper(II) sulfate. Copper metal is produced and zinc sulfate is left in solution.
December 10, 2007 by amber

chem
Copper sulfate is a blue solid that is used as an algicide. Solutions of copper sulfate that come in contact with zinc metal such as the surface of galvanized (zinc-plated) steel- undergo the following reaction that forms copper metal on the zinc surface: CuSO4(aq)+Zn(s) ---&...
October 5, 2009 by Anonymous

science
If 0.188 moles of zinc reacts with excess lead(IV) sulfate, how many grams of zinc sulfate would be produced in the following reaction?
November 3, 2015 by Anonymous

science
If 0.188 moles of zinc reacts with excess lead(IV) sulfate, how many grams of zinc sulfate would be produced in the following reaction?
November 3, 2015 by Anonymous

chemistry
Suppose 0.432g of zinc acetate is dissolved in 200.mL of a 16.0mM aqueous solution of ammonium sulfate. Calculate the final molarity of acetate anion in the solution. You can assume the volume of the solution doesn't change when the zinc acetate is dissolved in it.
January 18, 2012 by Deborah

general chemistry
I need the oxidation half reactions, reduction half reactions, and net ionic equations for the following reactions: 1)magnesium +0.1M zinc sulfate 2)copper+0.1M zinc sulfate 3)zinc+0.1M copper(II)sulfate 4)zinc+3M HCl 5)copper+3M HCl 6)0.1M potassium iodide+ 0.1M copper(II)...
November 13, 2010 by masooma

chemistry
Solid zinc and aqueous hydrogen sulfate reacts to produce hydrogen gas and aqueous zinc sulfate Is this the right answer Z(aq)+HS equals H(G) ZS? if not can u please correct me
January 26, 2009 by Lauren

Science Chemistry
LIST: Sodium carbonate. Calcium carbonate. Zinc sulfate. Zinc nitrate. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by a precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation reaction...
January 7, 2017 by Charlotte

chemistry
A student determines the zinc content of a solution by first precipitating it as zinc hydroxide, and then decomposing the hydroxide to zinc oxide by heating. How many grams of zinc oxide should the student obtain if her solution contains 42.0 mL of 0.566 M zinc nitrate?
November 4, 2012 by Anonymous

chemistry
A student determines the zinc content of a solution by first precipitating it as zinc hydroxide, and then decomposing the hydroxide to zinc oxide by heating. How many grams of zinc oxide should the student obtain if her solution contains 38.0 mL of 0.501 M zinc nitrate?
September 28, 2015 by Julian

CHEMISTRY
brass is a subtitutional alloy consisting of a solution of copper and zinc. a particulae sample of red brass consisting of 80% copper and 20% zinc by mass has a density of 8750kg/m^3. a. what is the molality of zinc in the solid solution and B. what is the molarity of zinc in ...
October 14, 2010 by lulu78

chemistry
You have been asked to do a dilution of a copper sulfate solution. The solution to be diluted is 2.88 M copper sulfate. What volume of the 2.88 M copper sulfate is required to make 250 mL of 1.03 M copper sulfate solution?
April 10, 2014 by Anonymous

Science Chemistry
LIST: SODIUM CARBONATE. CALCIUM CARBONATE. ZINC SULFATE. ZINC NITRATE. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation for the ...
January 7, 2017 by Charlotte

Science Chemistry
LIST: SODIUM CARBONATE. CALCIUM CARBONATE. ZINC SULFATE. ZINC NITRATE. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation for the ...
January 7, 2017 by Charlotte

Chemistry
What are 4 different crystalline substances? sodium chloride magnesium sulfate\ zinc sulfide copper(II) sulfate
February 1, 2007 by emily

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

chemistry ap
Zinc reacts with 18.0 mL of 6.00 M cold, aqueous sulfuric acid through single replacement. a. How much zinc sulfate is produced? Answer in units of g
April 3, 2015 by chem

Science
The products of the reaction between zinc and sulfuric acid are zinc sulfate, hydrogen sulfide, and water. Balance the equation using the electron-transfer method.
November 6, 2012 by Zach

chemistry
What is the limiting reagent in this problem? A total of 40.0 mL of 0.55 M copper (II) sulfate solution is added to a beaker containing 2.02g of zinc.
March 20, 2013 by brianne

Chemistry
The equation is: CuSO4(s) + Zn(s) -> Cu(s) + ZnSO4(aq) 3.22 g of powdered zinc is added to 200ml of 0.5M copper sulfate solution. What mass of copper is deposited? Hi guys. I am confused about the stoichmetry question. Q: The equation is: CuSO4(s) + Zn(s) -> Cu(s) + ...
October 10, 2015 by G

Chemistry
how do you write a chemical equation with this reaction? can u help me solve these 1.Liquid carbon disulfide reacts with oxygen gas, producing carbon dioxide gas and sulfur dioxdie gas. 2. Solid zinc and aqueous hydrogen sulfate reacts to produce hydrogen gas and aqueous zinc ...
January 26, 2009 by Lauren

chemistry
Zinc is to be used as an internal standard for the polarographic analysis of thallium. A standard solution containing twice the concentration of zinc as thallium has diffusion currents of 1.89 microAmps for thallium and 3.5 microAmps for zinc. A 10.0g sample of an alloy ...

analaytical chemistry
a student mixes equal volume of 1 molar tin chloride and coper sulfate and observe tha no preciptate forms .then the students mxis equal volume of 1molar solution of zinc sulfate and tin floride and observe the formation of precipitate .which compound is precipitate
June 13, 2016 by Gebru

Chemistry
A solution is made by mixing 90.6 g of magnesium sulfate heptahydrate with 2320.0 g of water. 690.00 mL of the solution has a mass of 745.20 g. 1. What is the molarity of the magnesium sulfate solution? 2. What is the molarity of the magnesium ion? 3. What is the molality of ...
September 11, 2013 by J

Chemistry
Zinc has three major and two minor isotopes. For this problem, assume that the only isotopes of zinc are the major ones, zinc-64, zinc-66, and zinc-68. The atomic mass of zinc-64 is 63.9291 Da, that of zinc-66 is 65.9260 Da, and that of zinc-68 is 67.9248 Da. Calculate the ...
May 3, 2013 by Jess

chemistry
Hydrochloric acid solution reacts with zinc according to the following equation: 2H3O + Zn -> Zn^2+ + H2 +2H2O 100ml of hydrochloric acid solution Ca=0.5mol/l must be prepared from C=5mol/l hydrochloric solution. 1) Specify the glassware needed for this preparation . At ...
December 11, 2016 by angy

Chemistry
Write a balanced equation from the following statement: Zinc metal and sulfuric acid are combined to form hydrogen gas and zinc sulfate (Enter the formulas in the order they are listed. Do not leave a space between the coefficient and the formula)
March 23, 2016 by Jackie

chemistry
I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the lead oxidizes the ...
July 3, 2008 by delany

chemistry
I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the lead oxidizes the ...
July 2, 2008 by delany

Qualitative analysis
Aqueous sodium hydroxide is added to a mixture of an aqueous solution of X with some aluminium alloy. On warming, ammonia gas is evolved. When X is treated with aqueous ammonia, a white precipitate that is soluble in excess aqueous ammonia is obtained. What could be the ...
November 17, 2016 by Cheezel

Chemistry
You are investigating the effect of strong base on the solubility of zinc hydroxide, Zn(OH)2 (s). (Ksp= 3 x 10- 15 for Zn(OH)2 (s)) You prepare 1.0 L solution of 0.10M NaOH and add excess zinc hydroxide, Zn(OH)2 (s). Instead of suppresing the solubility, you observe extra ...
April 27, 2016 by Lily

chemistry
1. 15.0 g of sodium sulfate are dissolved in water to form 400.0 g of solution. The density of the solution is 1.056 g/mL at 25oC. a. What is the mass percent (%(w/w)) of sodium sulfate? b. What is the molarity of sodium sulfate? c. What is the molarity of the sodium ion? d. ...
June 13, 2011 by josh

general chem
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, simply write NR. (a) Nickel metal is added to a solution of copper (II) nitrate; (b) a solution of zinc nitrate is added to a solution of magnesium ...
October 9, 2011 by rob

CHIMIE
On mélange 90cm3 de solution de sulfate de baryum 1,5N avec 75cm3 d'une solution de sulfate disodique 0,6M 1-calculer la force ionique de la solution saline ainsi obtenue? 2-En déduire la valeur du coefficient d'activité de Na+? MERCI
December 14, 2013 by RAHIL

Chemistry
Zinc iodide is dissolved in 2.5 L of water to make a solution. 1.00 L of this solution is then diluted to make 12.0 L of a 0.50 M solution. What mass of zinc was added to make the original solution?
January 23, 2015 by Leena

Chemistry
Write balanced net ionic equAtions. D) zinc chloride and excess ammonia E) cupric phosphate and lots of ammonia A) ammonia and excess zinc sulfate
April 8, 2012 by ALISON

Chemistry
A solution is made by mixing 90.6 g of magnesium sulfate heptahydrate with 2320.0 g of water. 690.00 mL of the solution has a mass of 745.20 g. What is the molarity of the magnesium sulfate solution?

chemistry
Aqueous sodium sulfate reacts with aqueous barium chloride to produce solid barium sulfate and aqueous sodium chloride. the solution contains 3.44g of barium chloride. you have a 0.282M solution of sodium sulfate. determine the volume of the sodium sulfate solution necessary ...
April 17, 2016 by sara

Chemistry
Recently I solved for how many mL of 5% BaCl2.2H20 solution was required to precipitate sodium sulfate. Now the question asks what if the sodium sulfate was potassium sulfate instead. Would the volume required be higher or lowered than the sodium sulfate and why? I got that ...
October 10, 2011 by Mika

chem.
Silver(I) nitrate and sodium sulfate react to form silver(I) sulfate and sodium nitrate. Suppose 43.5 mL of 0.040 M silver(I) nitrate solution and 26.58 mL of 0.10 M sodium sulfate solution are mixed. What is the maximum number of grams of silver(I) sulfate that can be made?
February 28, 2010 by Tiffany

Chemistry
Silver(I) nitrate and sodium sulfate react to form silver(I) sulfate and sodium nitrate. Suppose 45.98 mL of 0.060 M silver(I) nitrate solution and 26.64 mL of 0.10 M sodium sulfate solution are mixed. What is the maximum number of grams of silver(I) sulfate that can be made?

Chem2
At 25C, the concentration of lead(II) sulfate in a saturated aqueous solution is 7.9 x 10^-M. Determine the volume, in liters, of saturated solution of lead(II) sulfate that contains 1.0g of lead(II) sulfate.
September 12, 2014 by Izzyrun

Chemistry
Assuming the sample is pure sodium sulfate, how many mL of 5% BaCl2.2H20 solution would be required to precipitate the sulfate. Density of barium shloride solution of 1.00 g/mL.
October 8, 2011 by Mika

Chemistry
In the chemical reaction, . Zn(s) + CuSO4(aq) ¨ ZnSO4(aq) + Cu(s), (A) metallic zinc is the reducing agent. (B) metallic zinc in reduced. (C) copper ion is oxidized. (D) sulfate ion is the oxidizing agent.
May 12, 2008 by LT

chemistry
5.34g of salt of formula M2SO4 (M is a metal)were dissolved in water. The sulfate ion was precipitated by adding excess barium chloride solution when 4.66g of barium sulfate (BaSO4) were obtained. a)How many moles of sulfate ion were precipitated as barium sulfate? b)How many ...
October 19, 2013 by Ben

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...
March 3, 2013 by mamta

Chemistry
Determine the sulfate ion concentration in a solution prepared by diluting 15.00mL of a 0.200M aluminum sulfate solution with 35.00mL of water. Assume the volumes are additive.
March 2, 2014 by Carley

chemistry
calculate the number of milliliters of 0.10 M cupric sulfate solution that must be diluted to prepare 10mL of a 0.015M cupric sulfate solution.
May 21, 2013 by Atticus

Chemistry
Writing the net ionic equation for sodium fluoride+hydrochloride, magnesium iodide + lead (II) acetate sliver (I) acetate + potassium iodide nickel (II) sulfate + barium chloride barium acetate + ammonium sulfate barium hydroxide +aluminum bromide zinc iodide + potassium ...
June 10, 2016 by Lesley

Chemistery
Writing the net ionic equation for sodium fluoride+hydrochloride, magnesium iodide + lead (II) acetate sliver (I) acetate + potassium iodide nickel (II) sulfate + barium chloride barium acetate + ammonium sulfate barium hydroxide +aluminum bromide zinc iodide + potassium ...
June 10, 2016 by Anonymous

Chemestry
Approximately how many mL of 5% BaCl22H2O solution would be required to precipitate all the sulfate if we assume that your samples are pure sodium sulfate? Assume that the density of the barium chloride solution is 1.00 g/mL
April 25, 2014 by Peder

science
will silver nitrate solution mixed with calcium sulfate solution produce white precipitation? Will it be because formation of silver sulfate?
December 5, 2015 by anil

biology department
Approximately how many mL of 5% BaCl22H2O solution would be required to precipitate all the sulfate if we assume that your samples are pure sodium sulfate? Assume that the density of the barium chloride solution is 1.00 g/mL
May 15, 2013 by negin

chemistry
Using the activity series, write a balanced chemical equation for the following reactions: 1. iron metal is added to a solution of copper (II) nitrate 2. zinc metal is added to a solution of magnesium sulfate 3. hydrobromic acid is added to tin metal 4. hydrogen gas is bubbled...
March 27, 2011 by Jessica

Chemistry
you add excess sodium sulfate to a solution of a soluble barium compound in order to precipitate all of the barium ion as barium sulfate, BaSO4. Suppose a 458 mg sample of the barium compound is dissolved to create the solution. Then when the sodium is added, 513 mg of barium ...
March 12, 2012 by India

Chemistry
you add excess sodium sulfate to a solution of a soluble barium compound in order to precipitate all of the barium ion as barium sulfate, BaSO4. Suppose a 458 mg sample of the barium compound is dissolved to create the solution. Then when the sodium is added, 513 mg of barium ...
March 12, 2012 by India

Chemistry
The maximum solubility of silver sulfate, Ag2SO4 [molar mass = 312], is 4.50 g/L at 25°C. Silver sulfate dissociates by the reaction below: Ag2SO4(s) <--> 2 Ag+ (aq)+ SO4¯² (aq) 1.What are the [Ag+] and [SO4¯²] in a saturated solution of silver sulfate made by ...
March 20, 2011 by Paul

chemistry
you made up a standard solution of calcium sulfate (CaSO4). the temperature is 25C. you then add 5.00*10^-3 odium sulfate (Na2SO4). Calculate the concentrations of calcium and sulfate after equilibrium is reached? The pKs of CaSO4 is 4.58.
January 15, 2011 by Maria

chemistry
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2 (aq) and 0.0210 M Ag (aq). What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate? Ksp=1.20×10^–5 silver sulfate ksp=4.93x 10 ^-5 calcium sulfate
April 10, 2014 by alexa

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
A piece of zinc was added to 1000cm³ of 0.2m hydrochloric acid. After effervescence head stopped, 30cm³ of the resulting solution required 22cm³ of 0.08m sodium trioxocarbonate (iv) solution for complete neutralization, calculate the mass of zinc added.
August 21, 2016 by victor Ilevbare

chem
A solution is prepared by dissolving 16.5 g ammonium sulfate in enough water to make 145.0 mL of stock solution. A 10.50 mL sample of this stock solution is added to 57.70 mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution. NH4+
November 3, 2007 by mel

chemistry
A solution is prepared by dissolving 25.0 g of ammonium sulfate in enough water to make 100.0 mL of stock solution. A 10.0 mL sample of this stock solution is added to50.0 mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution.
March 1, 2011 by Anonymous

chemistry
A 3.75-G SAMPLE OF IRON ORE IS TRANSFORMED TO A SOLUTION OF IRON(II)SULFATE, FeSO4,AND THIS SOLUTION IS TITRATED WITH 0.150 M K2Cr2O7. IF IT REQUIRES 43.7 mL OF POTASSIUM DICHROMATE SOLUTION TO TITRATE THE IRON(II)SULFATE SOLUTION, WHAT IS THE PERCENTAGE OF IRON IN THE ORE? ...
October 23, 2012 by malissa

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
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

Chemistry
How many milliliters of a 0.48 M HCl solution are needed to react completely with 7.4 g of zinc to form zinc(II) chloride? Answer in units of mL.
September 10, 2016 by Sam

Chemistry
How many moles of potassium sulfate would you need to prepare 1200 grams of 5.0% sulfate (m/m) solution? Calculate the volume of solution of 3.6 NH4CI needed to prepare 350.0ml of 1.24 M NH4CI. How many grams of ammonium chloride are in the solution you created in the above ...
June 7, 2015 by Donna

Great Valley
How many moles of potassium sulfate would you need to prepare 1200 grams of 5.0% sulfate (m/m) solution? Calculate the volume of solution of 3.6 NH4CI needed to prepare 350.0ml of 1.24 M NH4CI. How many grams of ammonium chloride are in the solution you created in the above ...
June 7, 2015 by Donna

Help!
What is the net ionic equation of the rection between zinc and copper 2 sulfate?
April 16, 2014 by laya

Chemistry
An excess of zinc is added to 125 mL of 0.100 M HCl solution, What mass of zinc chloride is formed? Zn + 2HCl ----> ZnCl2 + H2
April 29, 2010 by Ana

Chemistry
A chemist takes a 647 gram sample of this hydrate. She removes all the water possible from the sample and collects it. To this water, she adds 7.6 grams of lead(II) nitrate. Afterwards she wants to precipitate all the lead. She wants to use a solution of aluminum sulfate to ...
November 13, 2016 by John

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 don't know where to start
September 10, 2012 by Chasm

I would appreciate very much If you guys could show me how to approach this problem. A solution is prepared by dissolving 10.8g of ammonium sulfate in enough water to make 100.0mL of stock solution. A 10.00mL sample of this stock solution is added to 50.00mL of water. ...
September 23, 2007 by claudia

Chem
You made up a saturated solution of calcium sulfate (CaSO4). The temp is 25 degrees Celsius. You then add 5.00*10^-3 of sodium sulfate (NaSO4). What are the concentrations of calcium and sulfate after equilibrium is reached? The pKs of CaSO4 is 4.58. I know the Ks of CaSO4 to ...
June 5, 2011 by Mig

AP Chemistry
Finish the equation: Solutions of zinc sulfate and sodium phosphate are mixed
October 28, 2007 by Julie

Chemistry
Put 10 mL of silver sulfate (Ag2SO4) in 1 gram zinc. What is the net equation?
April 12, 2015 by Chase

Chemistry-Gases
A common laboratory preparation of hydrogen on a small scale uses the reaction of zinc with hydrochloric acid. Zinc chloride is the other product. (a) If 13.0 L of H2 at 765 torr and 20.0 °C is wanted, how many grams of zinc are needed, in theory? (b) If the acid is available...
April 2, 2014 by Anonymous

Chemistry
The concentration of ammonium ion in the solution of the salt called ferrous ammonium sulfate, formula [Fe(NH4)]2(SO4)3, is 0.360 M. The concentration of sulfate ions in this solution is?
September 27, 2016 by Colby

Chemistry (urgent)
Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s. There was one problem I had no idea how to solve. What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a saturated solution ...
April 12, 2010 by Maggie

chem
You mix 5.32 g of solid magnesium sulfate with 105.24 g of water inside a calorimeter. As the magnesium sulfate dissolves, the temperature of the solution rises from 24.5°C to 30.1°C. Calculate the amount of energy in kJ that was transferred into the surroundings through ...
November 11, 2015 by Anonymous

Chemistry
If you begin with 100.0 mL of a 3.0 Molar solution of ammonium sulfate and 100mL of a 2.0 Molar solution of barium phosphate how many grams of Barium sulfate would be produced?
February 10, 2011 by jackie

chemistry
If you begin with 100.0 mL of a 3.0 Molar solution of ammonium sulfate and 100mL of a 2.0 Molar solution of barium phosphate how many grams of Barium sulfate would be produced?
February 10, 2011 by jackie

Chemistry
Calculate the mass of sodium sulfate decahydrate need to make a 500ml solution that is .025m in sulfate anion?
October 26, 2011 by Pam

chem
A solution is prepared by dissolving 25 grams of sodium sulfate in enough water to give a total volume of 500. mL. The molar mass of sodium sulfate is 142 grams per mole. What is the molarity of the solution?
November 14, 2012 by jennifer

Chemistry
a 2.00 g sample of zinc was dissolved in 50.0 mL of 6.0 M HCL the final volume of solution was 50.2 mL... a. what was the concentration of Cl- after the zinc was dissolved?? b. what was the concentration of hydrogen ion after the zinc was dissolved??
October 25, 2012 by Anne

Chemistry
Calculate the mass of solid neded to make 500ml of solution that is 0.25m in sulfate ion, using sodium sulfate decahydrate.
October 28, 2011 by Emily

Chemistry
When 0.016 moles of aluminum sulfate are dissolved in enough water to make 477 milliliters of solution, what is the molarity of sulfate ions?
September 8, 2013 by Anonymous

chem
Zinc dissolves in acid according to the balanced equation. Zn(s)+ 2H(aq)-> Zn(aq) + H2(g) a sample of zinc is placed in a ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109ml in the ice/water volume of the calorimeter, what is the enthalpy change, per mole of ...
October 18, 2008 by tomi

chem
Zinc dissolves in acid according to the balanced equation. Zn(s)+ 2H(aq)-> Zn(aq) + H2(g) a sample of zinc is placed in a ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109ml in the ice/water volume of the calorimeter, what is the enthalpy change, per mole of ...
October 20, 2008 by tomi

chemistry
Zinc dissolves in acid according to the balanced equation. Zn(s)+ 2H(aq)-> Zn(aq) + H2(g) a sample of zinc is placed in a ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109ml in the ice/water volume of the calorimeter, what is the enthalpy change, per mole of ...
October 22, 2008 by tomi

chemistry
A solution is 2.0×10−2M in both chromate and sulfate anions and . To this solution, 0.55M Pb(NO)3 is slowly added. What is [Pb2+] at the point at which the second anion begins to precipitate (in M)? The second anion being the, sulfate anion.
April 14, 2011 by nahang

Chem
A concentrated solution of ammonia is added to a solution of zinc oxide? NH3 + ZnI2 => ?? An excess of nitric acid solution is added to a solution of tetraaminecopper (II) sulfate. HNO3 + ? => ?? Zn forms the Zn(NH3)4^+2 ion. It MAY form some Zn(OH)2 at small amounts of ...
May 10, 2007 by Sara

Chemistry
When 0.03 moles of aluminum sulfate are dissolved in enough water to make 266 mililiters of solution, what is the molarity of sulfate ions? Answer in units of M
September 8, 2013 by Lily

Chem
How many grams of silver sulfate can be dissolved in 450. ml of .200 M sodium sulfate solution? Ksp for Ag2SO4= 1.2*10^-5 Do not understand this solubility question. Please help.
May 9, 2016 by TS

chemistry
If I react 150.0 grams of zinc II sulfate with EXCESS calcium Sulfide, what mass of product(s) will be produced?
August 15, 2012 by Heather

chemistry
A common way of producing hydrogen gas in the lab is by reacting zinc with hydrochloric acid. Zn (s) + 2 HCl (aq) -> ZnCl2 (aq) + H2 (g) A sample of impure zinc, of mass 5.10g, reacted with an excess of hydrochloric acid solution 3.0 mol dm-3 concentration. In the end 1.7dm...
November 17, 2016 by Lois

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