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May 24, 2015

Search: which reactions between HCL, AgNO3, Pb(NO3)2, H2SO4, BaCl2, CuSO4, KI, ZnSO4, Na2CO3, and K2CrO4 are double replacement

Number of results: 35,410

Chemistry
What is the concentration of an HCl solution if 23.1 mL of HCl are needed to neutralize completely 35.0 mL of 0.101 M Ba(OH)2 I cannot get the right answer (Macic)(23.1mL)=(0.101M)(35.0mL) Macid = .153
December 5, 2011 by corey

chemistry
How many milliliters of a 0.5 molar HCl solution are needed to react completely with 11 grams of zinc according to the following equation? ? HCl + ? Zn ! ? ZnCl2 + ? H2 Answer in units of mL
September 19, 2012 by cheri

chemistry
How many grams of magnesium metal will react completely with 5.2 liters of 4.0 M HCl? Show all of the work needed to solve this problem. Mg (s) + 2 HCl (aq) yields MgCl2 (aq) + H2 (g)
May 21, 2014 by Tessa

chemistry
Construct the following using molecules of your choice: a) a polyester and b) a polyamide. Each drawing should have four monomers and should be original in its structure. Your polymers can not be biochemical (carbohydrate, lipid, protein, etc.). Identify the reactions as ...
May 9, 2008 by Mable

Chem
Arrange the three metals(Cu, Zn, and Mg) in order of their relative strengths as reducing agents, placing the strongest first. Arrange the three metallic ions ( Cu(No3)2, Zn(No3)2, and Mg(No3)2 ) in order of their relative strengths as oxidizing agents, placing the strongest ...
April 15, 2008 by ashley

chem!
Arrange the three metals(Cu, Zn, and Mg) in order of their relative strengths as reducing agents, placing the strongest first. Arrange the three metallic ions ( Cu(No3)2, Zn(No3)2, and Mg(No3)2 ) in order of their relative strengths as oxidizing agents, placing the strongest ...
April 15, 2008 by ashley

Organic Chemistry
What is the mechanism of action between sodium benzoate (NaC6H5COO) and hydrochloric acid (HCl)? I need to know where the electrons go in this reaction.
October 11, 2011 by BOB

Chemistry
Quantitative anaylsis of cl- ion is often performed by a titration with silver nitrate, using sodium chromate as an indicator. As standardized AgNo3 is addded, both white AgCl and red Ag2CrO4 precipitate, but so long as some cl- remains, the Ag2CrO4 dissovles as the mixgture ...
October 31, 2010 by MEG

Intro to Chemistry
How do balance this equation K2S+CuSO4
October 8, 2009 by Ariel

chemistry
write the reaction for the dehydration of CuSO4 . XH20?
June 14, 2010 by Alisha

chemistry
How many grams of copper are contained in 253g of CuSO4
September 9, 2010 by Keren

Density of CUSO4
How can I find out the mass measurement?
March 6, 2011 by Lorraine

Density of CUSO4
How do I find out the mass measurement?
March 6, 2011 by Lorraine

chemistry
What would happen if NaOH was added to CuSO4
April 6, 2011 by Anonymous

Chemistry
How many mililiters of 4.45*10^-2 M CuSO4 contain 4.05g of solute
October 2, 2012 by michael

Gen Chem
what is the formula weight for CuSO4 5H2O?
October 23, 2012 by Andrea

chemistry
Describe how to make 450mL of a 1.15% solution of CuSO4
October 15, 2014 by Amanda

English
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do.) please correct me if I'm wrong! 1. Sam burnt the toast. ( ...
September 6, 2014 by Anonymous

chemistry
when ammonia is added to Zn(NO3)2 solution, a white precipitate forms, which dissolves on the addition of excess ammonia. But when ammonia is added to a mixture of Zn(NO3)2 and NH4NO3, no precipitate forms at any time. Suggest an explanation for this difference in behaviour.
April 2, 2011 by Ana

Quick English check
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do.) *** Some may not have DO*** please correct me if I'm wrong! 1...
September 7, 2014 by Anonymous

Chemistry
A solution of H2SO4 was electrolyzed using the inert platinum electrodes. A) Write the balanced half-reactions for the anode and cathode in this cell. B) How many coulombs passed through the cell in 90 minutes at 8.0 amperes? C) How many moles of electrons pass through the ...
January 6, 2013 by Melanie

Chemistry Lab
So we prepared 100mL of .1M solutions of these solutions, and found the pH and H+ contents: pH H+ HCl: .57 .270 HNO3: .58 .260 H2SO4: 1.29 .051 HC2H3O2: 2.44 .0036 H2C2O4: .84 .145 HKC6H4(CO2)2: 4.13 7.41 Now I'm stuck on this question. What conclusions can be drawn from this ...
March 21, 2011 by Adrianna

Chemistry
Sorry DrBob, it's me again! Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:(0.1845M x 75.0mL= 13.84 mmoles 4.Volume of NaOH used: 17...
October 18, 2010 by Akhed-To DrBob222

Chemistry
1. A good indicator will have a(n)____ close to this volume and pH. I think it's endpoint but it's wrong. 2. (part a) What is the pH of the solution created by combining 1.70 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)? ...
April 28, 2012 by Jody

chemistry
hi kinda stuck :) 100.0 ml of 0.100 M H2NNH2 (kb =3.0 x10^-6) is titrated by 0.200M calculate PH after adding the following volumes of HNO3 a 0 b 25.0 ml c 50.0 ml d 60.0 ml ----------------------------------------- A) N2H4 + HNO3 --> N2H5+ + NO3- .100 0 0 3.0 x 10-6= x2/....
July 26, 2009 by Jim_R

Chemistry
1. A solution containing 0.100 mol of Na2CO3 and 0.100 mol of NiCl2 is allowed to react. Which reactant is the limiting reactant? 2. A solution containing 0.100 mol of Na2CO3 and 0.100 mol of NiCl2 is allowed to react. How many moles of precipitate form in this reaction?
February 23, 2013 by Eagertolearn

CHEMISTRY
Use the solubility rules to predict whether the following substances are soluble or insoluble in water: a) K2CrO4 _______________ b) NiSO4 _______________ c) Cu(OH)2 ______________ d) Pb(C2H3O2)2 __________ e) Ag2CO3 _______________ f) Al2S3 ________________ Please help me ...
May 13, 2012 by DAN

Chemistry
Suppose that 50.0 mL of 0.25 M CH3NH2(aq) is titrated with 0.35 M HCl(aq). (a) What is the initial pH of the 0.25 M CH3NH2(aq)? (b) What is the pH after the addition of 15.0 mL of 0.35 M HCl(aq)? (c) What volume of 0.35 M HCl(aq) is required to reach halfway to the ...
November 3, 2010 by Dana

Chemistry
Using standard reduction potentials, show that one can prepare an ammine complex from CoCl2 and hydrogen peroxide in the presence of ammoinia but not in its absence. (need to write two redux reactions, calculate standard potentials for the reactions, and make conclusions). I ...
April 26, 2012 by Anonymous

Chemistry
Explain why each of the following is incorrect: (a) Entropy increases in all spontaneous reactions. Wouldn't (a) be actually correct? Because when there's a spontaneous reaction, you have less stable molecules and more disorder. It will be lower in some reactions than in ...
May 23, 2012 by Robert

chemistry
Which of the following are redox reactions? For those that are, indicate which element is oxidized and whisch is reduced. For those that are not, indicate whether they are precipitation or neutralization reactions. (a) P4(s) + 10HClO(aq) + 6H2O = 4H3PO4(aq) + 10HCl(aq) (b) Br2...
November 5, 2012 by MichaelF

math
6. A bowl contains 10 red balls, 10 green balls and 10 white balls. a. What is the probability of drawing 2 white balls with replacement? b. What is the probability of drawing 2 white balls without replacement?
February 13, 2012 by sharon

chemistry
complete and balance Co(OH)3(aq)+Na2CO3(aq)
October 8, 2012 by chemdummy

chem - check euqation please
suggest a test chemical that can be added to the water sample to precipate the lead (II) ions. Show a chemical equation for the formation of the precipate you have chosen. I chose Hg(N03)2 so Pb2 + Hg(NO3)2 -->Pb(NO3)2 = Hg I know I still have to balance it but is my ...
May 28, 2008 by Emily B

chemistry
Answer the following questions based on this reaction: Pb(NO3)2 (aq) + 2 NaCl (aq) --> PbCl2 (s) + 2 NaNO3 (aq) a) If 225 mL of 12.95 M Pb(NO3)2(aq) are reacted with a solution made with 5.05 g of NaCl (aq), how many grams of lead (II) chloride will be precipitated b) If ...
January 23, 2015 by stacey

double integral
1. Sketch the region of integration & reverse the order of integration. Double integral y dydz... 1st (top=1, bottom =0)... 2nd(inner) integral (top=cos(piex), bottom=(x-2)... 2. Evaluate the integral by reversing the order of integration. double integral sqrt(2+x^3) dxdy... ...
March 11, 2011 by Michelle

Chemistry
Yellow CdS pigment is prepared by reacting ammonium sulfide with cadmium nitrate. What mass of CdS can be prepared by mixing 2.50 L of a 1.25 M Cd(NO3)2 solution with an excess of (NH4)2S? Cd(NO3)2 + (NH4)2S ---> CdS + 2NH4NO3 Could someone give me a step by step ...
April 29, 2010 by Ana

Chemistry
How can you increase the concentration of the product (s) in each of these reactions by varying the temperature and pressure (caused by volume change)? 4NH3 + 5O2 <=> 4NO + H2O Delta H = -903.75 kJ Br2 + Cl <=> 2BrCl Delta H = 14.64 kJ Please help... With gaseous ...
May 2, 2007 by Linda

Chem
Which chloride should exhibit the most covalent type of bond? WHY? A) NaCl B) KCl C) BaCl2 D) BeCl2 E) CaCl2
April 12, 2009 by Sandy

CHEMISTRY HELP!!
When BaCl2 reacts with Na3PO4, Ba3(PO4)2 and NaCl are formed. Balance the equation and write the coefficients in the blanks.
March 12, 2013 by Anna

chemistry
*the molar solubility of BaCo3 in 0.50M Bacl2 solution IS?ksp(1.6*10^-6) I CALCULATED AND GOT 3.2*10^-9 WANT TO MAKE SURE IF IT CORRECT
March 19, 2014 by jessina

chemistry
Q: I just did an online chemisty lab for Oxidation States of Manganese and I'm stuck. I have three test tubes that have been prepared as follows: Tube 1- Starting PH 13.82 2 mL of KMnO4 1 mL of NaOH Tube 2- Starting PH 7 2 mL of KMnO4 Tube 3- Starting PH 0 2 mL of KMnO4 1 mL ...
July 27, 2010 by jo

MATH Prob.
A box contains two black balls and three gold balls. Two balls are randomly drawn in succession from the box. a. If there is no replacement, what is the probability that both balls are black? b. If there is replacement before the second draw, what is the probability that both ...
August 6, 2009 by Twg

chemistry
What is the pH of the solution created by combining 11.50 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)? What are the pH values for HCl and HC2H302 if you take into account that the 8.00 mL of 0.10 M Acid was first diluted...
May 2, 2008 by Trisha

Chemistry
How many mL of concentrated HCl(aq) (36% HCL by mass, d=1.18g/mL_ are required to produce 12.5 L of a solution with ph = 2.10? First I started with finding out the concentration of [H30+] and for that I got 7.94 x 10^-3 but I don't know how to continue.
June 7, 2011 by K

chemistry
How many milliliters of a 0.5 molar HCl solution are needed to react completely with 15 grams of zinc according to the following equation? ? HCl+? Zn→? ZnCl2 +? H2 Answer in units of mL
October 28, 2013 by Anonymous

chemistry
How many milliliters of a 0.5 molar HCl solution are needed to react completely with 15 grams of zinc according to the following equation? ? HCl+? Zn→? ZnCl2 +? H2 Answer in units of mL
October 28, 2013 by Anonymous

Education
A classroom test that measures appropriate knowledge and/or skills is likely to be reliable because of the strong link between validity and reliability. A. Advanced vocabulary B. Double-concept item
June 8, 2012 by zz

Chemistry
Is Glucose soluble in HCl, NaOH and NaHCO3 because it's soluble in water? - I put soluble for all because it dissolves in water. Is p-toluidine soluble in HCl, NaOH, and NaHCO3? I put soluble in HCl, insoluble in NaOH and insoluble in NaHCO3. Is benzoic acid soluble in HCl, ...
May 25, 2010 by Alex

Chemistry
What volume of 0.01 M NaOH should be required to raise the pH of a litre of 25 mM H2SO4 to 4.0? I started out by attempting to find the initial pH of H2SO4 and determined I need 2.57 units of pH to raise it to 4. I know that somewhere I use the HH equation, but don't know what...
September 22, 2013 by Sara

Chemistry - Ksp
i did an experiment where we titrated HCl on calcium hydroxide, and now i am confused with the calculations, i do not know if i am correct, so please help me out... Trial One volume of HCl used - 11.20mL concentration of HCl - 0.04mol/L so to get moles of HCl i used M= CV is ...
April 25, 2011 by Farah

Chemistry
A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium concentration of FeSCN2+ ([FeSCN2+]std) for this standard solution is assumed to be ____ M. I tried this problem by adding the moles of Fe(NO3)3 and ...
April 13, 2008 by Renee

Chemistry 1
You carefully weigh out 17.00g of CaCo3 powder and add it to 68.85g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 78.88g . The relevant equation is CaCo3(s)+ 2HCl(aq)---> H2O(l)+ CO2(g)+...
May 30, 2011 by Christy

Chemistry
If your solution’s final volume of 32.55 mL yields 3.6 grams of AgCl, determine the Molarity of the final solution. Also, how many milliliters of a 1.85 M solution of AgNO3 did you add to an excess of aqueous NaCl to provide the 3.6 grams of AgCl? Actually this question is two...
March 26, 2013 by Shoba

chem
What would be the reaction between Mn2+ and NH3? is it Mn(NH3)? and would this solution react with HNO3, considering it would already have NO3 in it?
November 1, 2010 by nicole

Chemistry PLZ HELP!!!!!
which intermolecular forces would exist between molecules of: a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
April 8, 2012 by Maci

Chemistry PLZ HELP!!!!!
which intermolecular forces would exist between molecules of: a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
April 8, 2012 by Maci

Chemistry PLZ HELP!!!!!
which intermolecular forces would exist between molecules of: a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
April 8, 2012 by Maci

Chemistry
If the temp of a quanity of gas changes from 100C to 200C will the volume of the gas double if the pressure remains constant? I know that the volume will increase but i am not sure if it will double or not?
November 9, 2009 by Amy

college chem
The cation M2+ reacts with NH3 to form a series of complex ions as follows: M2+ + NH3 M(NH3)2+ K1 = 102 M(NH3)2+ + NH3 M(NH3)2 2+ K2 = 103 M(NH3)2 2+ + NH3 M(NH3)3 2+ K3 = 102 A 1.0 × 10–3 mol sample of M(NO3)2 is added to 1.0 L of 15.0 M NH3 (Kb = 1.8 × 10–5). What is the ...
April 24, 2011 by richard

Science
What is the molar mass of anhydrous salt in CuSo4 5H2O
December 10, 2007 by Jeanie

Chemistry
How many moles of electrons are required to produce 23.8 g Cu from a CuSO4 solution?
May 2, 2010 by Angel

college chemistry
what is the theoretical percent of water in CuSO4 x's 5H2O?
October 1, 2010 by sam

Chemistry
Will CuCI2+Na2SO4->CuSO4=NaCI2 precipitate and how can you determine this?
May 12, 2011 by Tiana

Chemistry
how many grams of aluminum sulfate are produced if 23.33 g Al reacts with 74.44 G CuSO4
May 21, 2012 by Jordan

Chemistry
Need type of reaction and balance of (NH4)2S+CuSO4=
April 22, 2013 by judy

Chemistry
What is molecular mass of CuSO4(NH4)SO4.H2O
January 19, 2014 by Collins

chemistry
What is the molarity of a solution with a volume of 974 mL containing 17 g of CuSO4?
February 18, 2014 by Elizabeth

Chemistry
What precipitates form when CuSO4 and H3PO4 added together?
December 6, 2014 by Manali

chemistry
how many grams of CuSO4.5H2O is needed to prepare 0.01 M solution?
March 4, 2015 by Anonymous

math
A box contains two black balls and three gold balls. Two balls are randomly drawn in succession from the box. a. If there is no replacement, what is the probability that both balls are black? b. If there is replacement before the second draw, what is the probability that both ...
December 15, 2010 by Jenni

math Study guide
I need help. I got all of these questions out of 50 wrong. 6-10 were not given. 1. Which of the following is an example of independent events? A-rolling a number cube and flipping a coin B-drawing marbles from a bag without replacement after each draw C-choosing members of a ...
June 5, 2014 by Anonymous

math
Mrs. Rossi wrote the following clues for a mystery number. It is a 4-digit number. The tens are double the ones. The thousands are double the tens. The sum of the digits is 19.
February 22, 2011 by rita

chemistry
Please help!... Lakes that have been acidified by acid rain (HNO3 and H2SO4) can be neutralized by a process called liming, in which limestone (CaCO3) is added to the acidified water. Write ionic and net ionic equations to show how limestone reacts with HNO3 and H2SO4 to ...
October 12, 2010 by Anonymous

chemistry
Calculate te calue of Ksp for Ca(NO3)2 using the data below. Ba(aq) delta G0f= -561 kJ/mol NO3 (aq) delta G0f= -109 kJ/mol BaNO3 (s) delta G0f= -797 kJ/mol
November 27, 2010 by Jeffery

SCIENCE
(aq) means the solution is dissolved in water used as a solvent. (l) means the COMPOUND (not element, usually) is a pure liquid. (g) means gas and (s) means solid. In the equation below, HCl(aq) + NaOH(aq) -->NaCl(aq) + H2O(l)This means that an aqueous solution of HCl is ...
December 11, 2006 by DrBob222

Biology
1. Homeostasis relates most directly to which of the following ideas? a. interacting systems b. stability c. evolution d. scale and structure I'm stuck between A and B 2. The physician Ronald Ross wanted to find the cause of malaria. Based on his observations, Dr.Ross ...
January 22, 2010 by mysterychicken

chemistry
Hi. I have a little problem with my chemistry task. I have 4 unknown solutions: 1 light blue (A),1 green (B), 2 without colour (C & D). As I understood that the blue one is CuSO4, green one is NiCl2, but 1 uncoloured is NH3, then... A - CuSO4 [couldn't ir be Cu(OH)2?] B - ...
December 27, 2008 by Ksenija

Chemistry
Sorry DrBob, it's me again! Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:(0.1845M x 75.0mL= 13.84 mmoles 4.Volume of NaOH used: 17...
October 19, 2010 by Akhed-To DrBob222

Chemistry
What is the molar concentration of the lead nitrate,potassium iodine,lead iodine,and the potassium nitrate after you mix 10.00mL of 0.200M Pb(NO3) and 30.00mL of 0.100M KI together balance the equation KI+Pb(NO3)2 PbI2+KNO3
December 4, 2013 by Ruffles

Chemistry
Find the enthalpy of combustion of magnesium using Hess' law given the following data (assume that exactly 100.0 mL of HCl was used in each trial and that HCl is in excess) Magnesium/HCl reaction: Grams of Mg= 0.244g Initial temp= 32.2 degrees celsius Final temp= 21.3 degrees ...
July 21, 2014 by Liz

DR.BOB HELP CHEMISTRY!
How many milliliters of a 0.3 molar HCl solution are needed to react completely with 8 grams of zinc according to the following equation? ? HCl + ? Zn → ? ZnCl2 + ? H2 Answer in units of mL
October 4, 2011 by Rara

chemistry
dry gaseous hcl contained in volume of 1L at STP is dissolved in 200ml of 0.5M barium hydroxide soltion. How many mol of 0.5M hcl would be needed to neutralise the resulting solution?
April 2, 2012 by mob

physical science
plan,design and condact an investigation to find out whether the amount of heat produced will depend on an increase on the concentration of HCl when HCl reacts with an excess Zn.
April 25, 2013 by kholofelo

physical sciences
plan,design and conduct an investigation to find out wether the amount of heat produced will depend on an increase on the concentration of HCL when HCL reacts with an excess Zn
April 28, 2013 by machata rilinde

math
1) initial investment = $600 annual % rate = ? time to double = ? amount after 10 years = $19,205.00 19,205 = 600e^(10r) I do not know how to solve for r of find the time to double.
February 8, 2010 by Hannah

chemistry
Write out the net ionic equation for: Cd(NO3)2 + Na2S -----> 2NaNO3 + CdS ----- thanks!! Write out the net ionic equation for: Cd(NO3)2 + Na2S -----> 2NaNO3 + CdS If this is done in a water solution, then the sodium nitrate will be in solution, as was the Cd(NO3)3 (both ...
September 12, 2006 by Tessa

Chemistry
During the electrolysis of an aqueous solution of CuSO4 with inert electrodes (A) the anode loses mass and the cathode gains mass. (B) the mass of the anode remains the same but the cathode gains mass. (C) the mass of the anode decreases but the mass of the cathode remains ...
May 12, 2008 by LT

Chemistry
In this experiment NaOH is standardized to titrate it with vinegar so thtat the percent by mass of the acetic acid can be determined. How does dissolved CO2 in distilled water affect the accuracy of the determination of a NaOH solution's concentration? How is the term acid ...
March 29, 2014 by Sandy

chem 211
When 20.0 mL of 0.535 M H2SO4 is added to 20.0 mL of 1.07 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the individual volumes and that...
October 18, 2013 by beti

chemistry
What are the concentrations of H3O+ and OH- and what is the pH of a 0.15 M solution of Na2CO3 (at 25 °C).
March 15, 2011 by darren

chemistry
How many grams of Na2CO3 are required to Na2S2O3
April 4, 2011 by Rickia

chemistry
How many grams of Na2CO3 are required to Na2S2O3
April 4, 2011 by Rickia

chemistry
why do you use Na2Co3 extract of anions
July 25, 2011 by saiful

chemistry
What is the solubility of silver carbonate in 0.1 M Na2CO3
November 17, 2011 by brittany

chemistry
How many moles of compound are in 26.5g of Na2CO3 x 10H2O?
July 26, 2012 by valencia

Chemistry
Calculate the mass of each element in Na2CO3
February 6, 2013 by Anonymous

chemistry
How many moles of compound are in 30.2 g of Na2CO3·10H2O?
July 29, 2013 by Bstal

chemistry
How many moles of Na2CO3 are teher in 5.oL of 2.0 M solution?
September 17, 2013 by remie

Chemistry Help
WHAT???? which of these are electrolytes?? CH3CH2OCH2OH PCl3 Na2CO3 O2
March 3, 2015 by Jennie

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