# Can CoBr2+ NH4Br + NH4OH ---> Co^2+ (aq) + 2NH3 (l) + H^+ (aq) + H2O (l) + 3Br^- form the complex [Co(NH3)5Br]Br2 if so please explain

5,327 questions
1. ## chemistry

Can CoBr2+ NH4Br + NH4OH ---> Co^2+ (aq) + 2NH3 (l) + H^+ (aq) + H2O (l) + 3Br^- form the complex [Co(NH3)5Br]Br2 if so please explain

asked by ellie on May 4, 2014
2. ## Chemistry

Question: Calculate the solubility (g/L) of CuBr at 25 degrees celsius in 0.0110 M CoBr2. Ksp of CuBr = 5.3*10^-9. I am capable of doing it in pure water, but I am struggling with how the two bromines in CoBr2 will affect the answer and ICE TABLE set up.

asked by John Eris on June 4, 2014
3. ## Chemistry

Calculate the energy changes associated with each of the following reactions. Label each as endothermic or exothermic. A.) 2(C2H2)+5(O2)------->4(CO2)+2(H2O) B.) N2+O2------>2(NO) C.) NH3+H2O----->NH4OH D.) 2(BrCl)----->Br2+Cl2

asked by Jake on December 6, 2010
4. ## CHEM HELP!!!

I don't get two questions out of my homework and I know the answers to them but just not how the answers were gotten. PLEASE HELP!! 1) A handbook gives the aqueous solubility of carbon monoxide at 0 C and 1 atm CO pressure to be 0.0354 mg CO per mL of

asked by Taylor on February 13, 2012
5. ## General Chemistry

A 0.484 g sample of impure NH4Br is treated with 25.00 mL of 0.2050 M NaOH & heated to drive off the NH3. The unreacted NaOH in the reaction mixture after heating required 9.95 mL of 0.0525 M H2C2O4 to neutralize. How many grams of NH4Br were in the

asked by <3 on July 12, 2013
6. ## Chemistry

How many grams of NH4Br(Molar Mass=98g)are in 440.0 mL of 1.75Moles NH4Br

asked by Chris on March 7, 2013
7. ## Chemistry

Write formula equations and net ionic equations for the hydrolysis of the following salts in water. a. sodium carbonate b. ammonium bromide I don't know what the products should be. a. Na2CO3+H2O--> ? b. NH4Br+H2O--> ? Please help me with this. I really

asked by anonymous on April 24, 2009
8. ## CHEMISTRY

NH4OH + H2O =

asked by CHRIS on October 17, 2012
9. ## science

is this rigth HC2HO2+NH4OH-->NH4C2H3O2+H2O

asked by NEED Help on January 5, 2010
10. ## chemistry

ΔS is positive for which one of the following reactions? Ag+(aq) + Cl- (aq) = AgCl(s) N2(g) + 3H2(g) = 2NH3(g) CaO(s) + CO2(g) = CaCO3(s) 2SO3(g) = 2SO2(g) + O2(g) H2O(l) = H2O(s)

asked by danny on February 7, 2015
11. ## Chemistry-titrations

Question: An unknown mass of (NH4)2CO3 is mixed with 4g of NaOH and dissolved in 100cm3 of water,which results a clear solution.Gasses are removed by heating the final solution. 2 parts of 25cm3 of final solution is taken and one is titrated with 0.5 M HCl

asked by Shenaya on May 29, 2017
12. ## chemistry

25mL of tartaric acid solution is titrated against 31mL of NH4OH. What is the normality of the NH4OH? Please explain how to work this problem.

asked by Stephen on October 5, 2012
13. ## chemistry

Iwish to prepare 3% NH3 from 20ml strong NH4OH and 180ml H2O.Can you help me?

asked by d on February 7, 2013
14. ## Chemistry-precipitates

What precipitates form when Cu(NO3)2, CuSO4, NH4OH, and CaCl2 only two of the above added together. I need all combinations. What color are they? Ik Cu reacts with NH4OH. is the precipitate white?? what about the others?

asked by Giznelbell on October 19, 2008
15. ## chemistry

solution of 0.1molar NH4OH and 0.1 NH4CL ph=9.25 calculate kb for NH4OH?

asked by ankit on September 11, 2014

Find Net Ionic equation for hydrolysis , Expression for equilibrium constant (Ka or Kb) and Value of (Ka or Kb) Net Ionic equations I've got NaC2H3O2 == CH3COO^-+H2O -->CH3COOH+OH^- Na2CO3 ==== CO3 + 2H2O → H2CO3 + 2-OH Kb = [H2CO3] [-OH]2 / [CO3]. Kb =

asked by Ahmed on April 3, 2014
17. ## Chemistry

Arrange each group of compounds/ions in order of increasing pH. 1. Li2CO3 , OH^- , NH4Br , NaCl 2. CH4 , HBr , H2O , F^- Lastly, I'd like to check if my answers for the following three questions were listed correctly in order of pH levels increasing. 3.

asked by TP on March 31, 2018
18. ## chemistry

The equivalent weights of X and Y are _________ g/equiv. H+ and g/equiv. –OH, respectively, for the following reaction: Z (Note: Report your answer with 4 significant figures.) X Y Z Answer #1 Answer #2 benzoic acid calcium hydroxide 2 C6H5COOH + Ca(OH)2

asked by Evani on October 22, 2011
19. ## chemistry

Which of the species KClO2, NH4Br, HNO2, PbS is/are insoluble in water? 1. NH4Br and NH3 2. KClO3 3. PbS 4. HNO2 5. All of these

asked by cheri on September 19, 2012
20. ## Chemistry

Trying to name this compound and figure out its oxidation state [ CoBr2(NH3)3(H2O) ]+ I came up with triammineaquadibromocobalt(II) ion with a +3 oxidation state...but not sure if this is right... similarily for [Fe(ox)(Cl)4]3- I came up with

asked by Trixie on April 7, 2010
21. ## chemistry

I have been knocking around this question for what seems to be an eternity. We have not gotten that far in this class so this is for extra credit. I have managed to get myself confused about something that should be easy. 25mLof tartaric acid solution is

asked by Stephen on October 5, 2012
22. ## chemistry

What is the ∆G for the following reaction under standard conditions (T = 298 K) for the formation of NH4NO3(s)? 2NH3(g) + 2O2(g) NH4NO3(s) + H2O(l) Given: NH4NO3(s): ∆Hf = -365.56 kJ ∆Sf = 151.08 J/K. NH3(g): ∆Hf = -46.11 kJ ∆Sf = 192.45 J/K.

asked by Anonymous on May 17, 2016
23. ## Chemsitry

What is the ∆G for the following reaction under standard conditions (T = 298 K) for the formation of NH4NO3(s)? 2NH3(g) + 2O2(g) NH4NO3(s) + H2O(l) Given: NH4NO3(s): ∆Hf = -365.56 kJ ∆Sf = 151.08 J/K. NH3(g): ∆Hf = -46.11 kJ ∆Sf = 192.45 J/K.

asked by Kaelah on September 1, 2016
24. ## Chem Help URGENT

Could someone help me with these molecular formulas, i don't know what im doing wrong. For this example, i did it like this and it says its incorrect. Could you solve the the equations below your way and i match it to mines? Thank you so much Fe (s) +

asked by Allison on October 28, 2010
25. ## chemistry

25 milliliters of tartaric acid solution is titrated against 31 milliliters of NH4OH. What is the normality of the NH4OH?

asked by Stephen on October 3, 2012
26. ## chem

NH4Br has been dissolved into 1 L of water at 25 degrees celcius. the solution has a pH of 5.16. calculate number of grams of NH4Br. I don't even know how to write the equation for this. Could someone please write the water + NH4 equation for me. Thanks :)

asked by Lena on July 24, 2009
27. ## Chemistry

Which equation shows conservation of mass and charge? A.NH4Br → NH3 + Br2 B. 2Mg + Fe3+ → Mg2+ + 3Fe C. H2SO4 + LiOH → Li2SO4 + H2O D. Cu + 2Ag+ → Cu2+ + 2Ag It's either b or d, since they both have two elements with an oxidation number of 0. Which

asked by Angie on May 21, 2011
28. ## chemistry

Mg3N2 +6H2O- 3Mg(OH)2 + 2NH3-- How many grams of H2O are needed to produce 150g of Mg(OH)2? I thought I had this but.....the correct answer should be 93 grams Where did I go wrong?? 1) Change 150 g Mg(OH)2 into moles by dividing by molar mass from periodic

asked by Connie on October 2, 2011
29. ## Chemistry

What is the ionic equation for (NH4)2CO3=2NH3+CO2+H2O

asked by Kerry on February 21, 2013
30. ## Chemistry- Dr.Bob222

Ammonium hydroxide is commonly advertised as an ingredient in some window cleaners. Rank the following in order of decreasing concentrations in these solutions: NH4OH, NH4+, OH-, NH3. Explain your reasoning. (Note that kb for ammonia = 1.8 x 10^-5. So does

asked by Nevaeh on April 3, 2016
31. ## chemistry

(NH4)2CO3 = 2NH3 + CO2 + H2O If you have 3.5 moles of Ammonia how much carbon dioxide was also made?

asked by Peter on April 6, 2009
32. ## Chemistry

My question is basically to find out what these reactants yield: CuCl2(aq) + NH3(aq) --> ? my best guess here is... CuCl2(aq) + 6NH3(aq)-->[Cu(NH3)4(H2O)2]2+ + N2(g) + 2HCl Im pretty sure about the [Cu(NH3)4(H2O)2]+2 part but not sure about the rest. The

asked by Frederique on November 7, 2006
33. ## chemistry

I thought about the syntax of the problem and I have surmised that what I thought were two questions was actually one. I'm slow but not dead yet. 75g of tartaric acid in 1 liter is used in a titration. 25mL of tartaric acid solution is titrated against

asked by What? on October 7, 2012
34. ## chemistry (drbob222)

I posted yesterday. Re: Chemistry (Sunday, October 4, 2009 at 12:49pm). Here's the information I left out. Number 3 simply states: nickel forms a large number of ammonia salts Ni^2+(NH3)m(Br)n . p(H2O) where m, n, and p represent the coefficients in the

asked by Anonymous on October 4, 2009
35. ## chemistry

what is the equation for C6H12O6+NaOH+Cu(OH)2 C6H12O6+AgNO3+NH4OH AgNO3+NH4OH+ galactose when heated

asked by flans on October 16, 2010
36. ## Chemistry

2 KOH(l) + H3PO4(l) --> K2HPO4(l) + 2 H2O(l) a) How many mL of 0.450M KOH is needed to react with 60.0mL of 0.250M H3PO4? a) 0.060L x 0.250M = 0.015 mol H3PO4 0.015mol H3PO4 x 2mol KOH / 1mol H3PO4 = 0.03 mol KOH 0.03 mol KOH x 1L/0.450 mol = 0.06667L =

asked by Shine bright shine far on March 1, 2019
37. ## Chemistry

What is the formula of the precipitate formed from the precipitation reaction of Pb(NO3)2 and NaI? QUESTION 2 When aqueous solutions of (NH4)3PO4 and KOH are mixed, what precipitate(s) will form? K3PO4 NH4OH no precipitate will form NH4OH and K3PO4

asked by Tatiyana on September 27, 2017
38. ## chemistry

N2+ 3H2 GIVES 2NH3 = -90.5 4NH3+5O2 GIVES 4NO+6H20 =-905.1 H2 +0.5 O2 GIVES H2O =-241.1 USE THESE VALUES TO DETERMINE ENTHALPHY CHANGES

asked by Meenakshi on September 28, 2012
39. ## chemistry

Consider the following reaction: CaCN2 + 3H2O ¨ CaCO3 + 2NH3 105.0 g CaCN2 and 78.0 g H2O are reacted. Assuming 100% efficiency, which reactant is in excess and how much is leftover? The molar mass of CaCN2 is 80.11 g/mol. The molar mass of CaCO3 is

asked by Bob on October 31, 2010
40. ## Chemistry

If the same volume (130-mL) of the buffer were 0.265 M in NH3 and 0.400 M in NH4Br, what mass of HCl could be handled before the pH fell below 9.00? I used the henderson-hasselbalch equation to solve this. i set it up as

asked by Kyle on March 28, 2010
41. ## Henderson-Hasselbalch

If the same volume (130-mL) of the buffer were 0.265 M in NH3 and 0.400 M in NH4Br, what mass of HCl could be handled before the pH fell below 9.00? I used the henderson-hasselbalch equation to solve this. i set it up as

asked by Kyle on March 28, 2010
42. ## Cemistry

Hi, I've been trying to solve this chemical equation for the last 30 minutes and am only confusing myself. I am wondering if the product I obtained is correct. The question is to write a balanced equation for the below reaction and be sure to indicate the

asked by Julie on March 16, 2012
43. ## chem hw

Assuming equal concentrations, rank these aqueous solutions by their freezing point: Li2SO4, Li3PO4, SnCl4, NH4Br. (from highest freezing point to lowest freezing poinT) Is the order Li3PO4, Li2SO4, SnCl4, and NH4Br???????? If not what is the correct

asked by Amy on February 19, 2012
44. ## chem need assistance

Write a balanced chemical reaction to show the reaction between ammonium and a chlorite? Is this correct? 2NH3 + CLO2 + H2O ⇒ NH4Cl + NH2O2

asked by dan on November 1, 2010
45. ## Chemistry

Write a net ionic equation that represents the reaction: 1. ionization of HCl3 in water: My answer: HClO3+H20->H3O+ClO3 2. NH3 functioning as an Arrhenius base: Mine: NH3+(OH)->NH4+O The first one is ok but you need to show the + charge on the H3O^+ and

asked by Liz on February 15, 2007
46. ## Chemistry

i need help. Calculate the pH of a 0.24 M CoCl3 solution. The Ka value for Co(H2O)63+ is 1.0 10-5. how do u do these with like the Cl there? Responses Chemistry - DrBob222, Monday, February 16, 2009 at 12:35am Just ignore the Cl^-. Co(H2O)6Cl3 ==>

asked by Lindsey on February 16, 2009
47. ## chemistry

H2So4+NH4OH Find the complete ionic equation Find the spectator ions Find the net ionic equation I feel like my answer is wrong i tried CIE: 2H+(aq)+So42-(aq)+2H4+(aq)---> 2NH4+(aq)+So42-(aq)+H2o (l)

asked by Alisha on February 24, 2015
48. ## chemistry

H2So4+NH4OH Find the complete ionic equation Find the spectator ions Find the net ionic equation I feel like my answer is wrong i tried CIE: 2H+(aq)+So42-(aq)+2H4+(aq)---> 2NH4+(aq)+So42-(aq)+H2o (l)

asked by Alisha on February 24, 2015
49. ## chemisry

2NaHCO3 --- Na2CO3 + H2O + CO2 2Fe + 6 HCl -- 2 FeCl3 + 3H2 2HBr + Ca(OH)2 -- CaBr2 + 2H2O N2 + 3H -- 2NH3 2H2O -- 2H2O + O is this a redox ? what is oxidized, reduced

asked by Kelsey on August 25, 2010
50. ## CHEMISTRY

Consider a 58.4 g sample of H2O(g) at 125°C. What phase or phases are present when -162 kJ of energy is removed from this sample? Specific heat capacities: ice, 2.1 J g-1 °C-1; liquid, 4.2 J g-1 °C-1; steam, 2.0 J g-1 °C-1, ΔHvap = 40.7 kJ/mol, ΔHfus

asked by Sarah on November 17, 2012
51. ## CHEMISTRY

HOW MANY MOLES OF NH3 WOULD BE FORMED FROM 50 GRAMS OF (NH4)2SO4 IN THE FOLLOWING EQUATION? (NH4)2SO4 + 2 NaOH=2NH3 + 2 H2O + Na2SO4

asked by ANGELA on December 27, 2009
52. ## Chemistry

When 2.50 mol of Mg3N2 are allowed to react according to the following equation, how many moles of H2O also react? Mg3N2 + 6H2O ---> 3Mg(OH)2 + 2NH3

asked by Soojung on August 28, 2008
53. ## chemistry

How much NH3 can be produce from 20 liter 32,5 wt%(NH2)2CO (urea) aqueous solution. The reaction path way is : (NH2)2CO +H2O= 2NH3+ CO2 Thanx

asked by Paul on February 9, 2011
54. ## General Chemistry

CaO + 2NH4Cl > 2NH3 + H2O + CaCl2 If 112 g of CaO and 224 g of NH4CL are mixed the theoretical yield of NH2 is 68.0 g. If only 16.3 g of NH3 is actually obtained, what is the percent yield?

asked by Jashmid on December 8, 2010
55. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

asked by Maria on January 20, 2011
56. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

asked by Jazmin on January 20, 2011
57. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

asked by Jazmin on January 20, 2011
58. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

asked by Maria on January 20, 2011

write an ionic and net ionic equation for the following reaction between Fe3+ and NH4OH. Please check my answer!! Thank you. My answer is: ionic: Fe3+(aq) + NH4OH--> Fe(OH)3 + NH4+ net ionic: Fe3+ +OH- -->Fe(OH)3

asked by Christine on October 25, 2010
60. ## Chem help

Which reaction of ammonia does not involve the non-bonding pair of electrons on the nitrogen atom? A NH3(g) + CH3I(g) → CH3NH 3+ I –(s) B NH3(g) + HCl (g) → NH4Cl (s) C 2NH3(l) + 2Na(s) → 2NaNH2(s) + H2(g) D 2NH3(aq) + Ag+(aq) → [Ag(NH3)2]+(aq)

asked by Ariana on September 28, 2014
61. ## Enthalpy Change Calculations

Find the heat of reaction (ΔH) for each of the following chemical reactions and note whether each reaction is exothermic or endothermic. 1. H2O(l) -> H2O(g) This is what I have so far: H2(g) + ½ O2(g) -> H2O(l) ΔH = -286.0 kJ/mol H2(g) + ½ O2(g) ->

asked by Emily on August 5, 2015
62. ## CHM

Need help please Which of the following equations has the coefficients 2,1,1,2 when it is balanced? Fe2O3 + HClO4 → Fe(ClO4)3 + H2O Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O KOH + H2SO4 → K2SO4 + H2O Ba(OH)2 + P4O10 → Ba3(PO4)2 + H2O Al2O3 + H2SeO4 →

asked by Aliyah on October 10, 2012
63. ## chemistry

Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68)

asked by Teresa on October 27, 2014
64. ## chemistry

What is pH of 0.1M solution of NH4Br, if the pKb of NH3 is 4.74?

asked by Henry on November 9, 2012
65. ## Chemistry

Having real trouble trying to write a balanced equationfor Hydrogen Cyanide. Every time I get most of it right I unbalance everything else orelse land up with huge numbers. Any hints gratefully received would you care to give the equation? CH4 + NH3 +O2 --

asked by Hatty on May 3, 2007
66. ## Chemistry

Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)→2NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 24.0∘C and 1.02atm by the complete decomposition of 11.9g of ammonium carbonate.

asked by Elizabeth on October 25, 2014
67. ## chemistry

In the following options which one is maximum/highly exothermic reaction..? 1)SrO+h2o 2)BaO+h2o 3)CaO+h2o 4)MgO+h2o Pls.... Need it real quick

asked by piyush on April 27, 2013
68. ## Chemistry- Dr.Bob222

Predict the effect of decreasing the temperature on the position of the following equilibria. (a) H2(g) + Cl2(g) ↔ 2HCl(g) + 49.7 kJ My answer: shifts to the right (b) 2NH3(g) ↔ N2(g) + 3H2(g) ∆ H = 37.2 kJ My answer: shifts to the left (c) CO(g) +

asked by Nevaeh on March 10, 2016
69. ## Finding Delta G

The following reactions are important ones in catalytic converters in automobiles. Calculate Delta G for each at 298 K. Predict the effect of increasing temperature on the magnitude of Delta G. 2CO(g) + 2NO(g) -> N2(g) + 2CO2(g) 5H2(g) + 2NO(g) -> 2NH3(g)

asked by Amy on March 29, 2013
70. ## chemistry

Which of the following chemical reactions represents a neutralization reaction? A. CH4 + 2O2 CO2 + H2O B. HCl + NaOH H2O + NaCl C. NH3 + H2O NH4++ OH- D. CH3COOH + H2O CH3COO- + H3O+

asked by jessie on September 12, 2016
71. ## Chemistry

Let say you were given this equation: NiBr2 + Co = Ni + CoBr2 How can you tell which is liquid,gas,solid,aqueous? Do you just use what you know and figure it out? Like since NiBr2 can be broken down because of the solubility rule, you can assume it aq then

72. ## Chemistry

Question 9 Unsaved What is the rate law for the following reaction, if the order of the reaction is m, an unknown? H2O2(aq) → H2O(l) + ½O2(g) a. k [H2O2]m b.k [H2O]m [O2]1/2 c.k [H2O] m /[H2O][O2 d.k[H2O] m [O2]m Thanks in advance. The k and m are meant

asked by Ramon on March 23, 2018
73. ## chem

calculate the concentration of all ions present in 58.7 mg NH4Br in 500 mL of solution

asked by celine on April 11, 2013
74. ## Chemistry

I know how to balance equations, but for some reason I can't seem to get this problem. Can anyone help? FeO3 + CO to Fe2S3 + NH4Br

asked by Anonymous on February 3, 2009
75. ## chem

CO2 and NH3 combines together to form CH4N2O and H20. What is the mass of NH3 that would be needed to make 2 moles of CH4N2O. Balanced equation is CO2+2NH3-->CH4N2O+H2O

asked by chemdummy08 on October 26, 2012
76. ## chemistry

Write an equation for the hydrolysis of each of the following salt: i) NaCH2H3O2; ii) Na2CO3; iii) NH4Br

asked by chris on October 13, 2011
77. ## Chemisty

What is the Net Ionic Equation for the following: a.) NH4Br, NaOH b.) Li2CO3, HClO4 c.)Pb(NO3)2, Kl

asked by Jessica on May 18, 2011
78. ## Chemistry

Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68)

asked by Teresa on October 27, 2014
79. ## Chemistry

Ammonium carbonate decomposes upon heating according to the balanced equation: (NH4)2CO3(s) -> 2NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 27.0 degrees C and 2.03 atm from the reaction of 1.4kg of (NH4)2CO3. What is the pressure of

asked by Stephanie on December 3, 2015
80. ## chemistry

Product of this reasction? 1. Ag(NH3)2Cl + HCl? 2. AgOH + NaOH? 3. PbCl2 + HCl? 4. Pb(OH)2 + NaOH? 5. PbSO4 + (CH3COO)NH4? 6. Hg^2+ + HCl + H2S? 7. Cu^2+ + HCl + H2S? 8. Cu^2+ + KSCN? 9. Fe^2+ + NH4OH + NH4Cl + H2S? 10. Fe^2+ + NaOH? 11. Fe^2+ + K4Fe(CN)6?

asked by syilfa on April 26, 2017
81. ## chemistry

Product of this reasction? 1. Ag(NH3)2Cl + HCl? 2. AgOH + NaOH? 3. PbCl2 + HCl? 4. Pb(OH)2 + NaOH? 5. PbSO4 + (CH3COO)NH4? 6. Hg^2+ + HCl + H2S? 7. Cu^2+ + HCl + H2S? 8. Cu^2+ + KSCN? 9. Fe^2+ + NH4OH + NH4Cl + H2S? 10. Fe^2+ + NaOH? 11. Fe^2+ + K4Fe(CN)6?

asked by syilfa on April 26, 2017
82. ## chemistry

what is the disadvantage of nh4oh

asked by pacot jamel on February 28, 2014
83. ## Weab base strong acid titration

NH4OH + H20 =

asked by Techno on April 22, 2011
84. ## science

at what temperature will 50g of nh4br produce a saturated solution when dissolved in 100 g of water

asked by k on January 17, 2019
85. ## Chemistry

Need a single reagent that I could use to distinguish NaI from NaNO3. NaOH, HCl, NH4Br, or Pb(NO3)2??

asked by Nick Bones on April 14, 2010
86. ## chemistry

Which of the following solutions will not form a precipitate when added to 0.10M NaOH? a) 0.10 M MgBr2 b) 0.10 M NH4Br c) 0.10 M FeCL2

asked by lynn on October 23, 2012
87. ## Chem II

Calculate the pH and percent ionization for the solution made up of 0.035 M NH3 and 0.015 M NH4Br.

asked by Ken on April 14, 2008
88. ## chemistry

Which of the following solutions will not form a precipitate when added to 0.10M NaOH? a)0.10 M MgBr2 b) 0.10 M NH4Br c) 0.10 M FeCL2

asked by lynn on October 23, 2012
89. ## chemistry

The solubility of silver chloride can be increased by dissolving it in a solution containing ammonia. AgCl (s) Ag+ (aq) + Cl- (aq) K1 = 1.6 x 10-10 Ag+ (aq) + 2NH3 (aq) Ag(NH3)2+ (aq) K2 = 1.5 x 107 What is the value of the equilibrium constant for the

asked by ken on July 21, 2012
90. ## Chemistry

Calculate the end point pH, when 25 mL of 0.01 mol/L HCl solution reacts exactly with 25 mL of 0.1 mol/L NH4OH solution. NH3 Kb = 1.8 x 10^-5 This will be the pH of NH4Cl solution. NH4+ + HOH ==> NH3 + H3O^+ Ka = Kw/Kb = (NH3)(H3O^+)/(NH4^+). Solve for

asked by Raj on May 31, 2007
91. ## Chemistry

Can someone please help me with this question? Hydrazine is somewhat toxic. Use the half-reactions shown be- low to explain why household bleach (a highly alkaline solution of sodium hypochlorite) should not be mixed with household ammonia or glass

asked by Anonymous on June 7, 2015
92. ## Chemistry

Predict whether the following reactions will be exothermic or endothermic A.] N2 (g) + 3H2 (g) --> 2NH3 (g) B.] S (g) + O2 (g) --> SO2 (g) C.] 2 H2O (g) --> 2 H2 (g) + O2 (g) D.] 2 F (g) --> F2 (g) Bond ________ ∆H˚ (kJ/mol) H-H _________ 432 N(triple)N

asked by Matt on November 9, 2011
93. ## chemistry

Choose the groups of molecules below in which all the molecules have a net dipole moment. a. SiHCl3, O2, H2O b. HF, H2ClCH2, H2O c. HF, CH3Cl, H2O d. CCl4, HCl, NH3 e. HF, H2O, N2

asked by janet on January 24, 2008
94. ## Chemistry

Which of the following processes is endothermic? a) H2O (g) --> H2O (l) b) 3O2 (g) + 2CH3OH(g) --> 2CO2(g) + 2H2O(g) c) H2O (s) --> H2O (l) d) O2(g) + 2H2(g) --> 2H2O(g) I a guessing b, since energy has to go into the reaction for water to go from a solid

asked by Anon on March 24, 2017
95. ## chemistry

what is the Molarity (M) of a 0.87m aqueous solution of ammonia, NH3? The density of the solution is 0.823 g/mL. Answer: 0.71 M So I have: 0.823 g H2O+NH3/1 ml H2O+NH3 17.034 g NH3/1 mol 18.016 g H2O/1 mol 0.87 mol NH3/1 kg H2O I've tried this several ways

asked by molality--->molarity on July 10, 2011
96. ## Chemistry

Calculate pH of NH4OH which is 1%ionized

asked by sara on November 20, 2012
97. ## ap chemistry

Arrange the following 0.10 M solutions in order of increasing H+ : HClO4 , H2SO4, NH4Br , KCN, KBr, KOH

asked by stephen on April 24, 2011
98. ## chem

Arrange the following 0.10 M solutions in order of increasing H+ : HClO4 , H2SO4, NH4Br , KCN, KBr, KOH

asked by Kely on April 24, 2011
99. ## Chem

Which equation represents what happens when a small amount of strong base is added to the buffer? OH- + A- A2- + H2O OH- + HA A- + H2O H3O+ + A- HA + H2O H3O+ + HA H2A+ + H2O

asked by Kyleigh on May 5, 2018
100. ## CHEMISTRY

which one of the following reactions represents the balanced chemical equation for the formation of water from hydrogen gas and oxygen gas? a. 2H(g) + O(g) a H2O(I) b. H2(g) +o(g) a H2O(I) c. 2 H2(g) + O2(g) a 2 H2O(I) d. 2 H(g) + 1/2 O2(g) a H2O(I)

asked by GRACE on May 9, 2010