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AP CHEM

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Complete and balance the reactionAl(s) + Pb2+(aq) ! using the smallest possible integers. I got: 2Al(s) + 3Pb2 ==> Al2Pb3
1. 6 answers
2. asked by brian
3. 5,971 views
The pKa of acetic acid is 4.74. What is the buffering range of this acid and its conjugate base? Explain.
1. 4 answers
2. asked by Sara
3. 2,626 views
19. Burning coal and oil in a power plant produces pollutants such as sulfur dioxide, SO2. The sulfur-containing compound can be
1. 3 answers
2. asked by Megan
3. 1,220 views
What is the pKa for the acid HA if a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75?~~~I know you find the ph by doing
1. 4 answers
2. asked by Jenny
3. 3,348 views
I would really appreciate some help on this problem. =)At 218 C, Kc = .00012 for the equilibrium NH4HS(s)<==> NH3(g)+ H2S(g)
1. 4 answers
2. asked by Jenn
3. 2,021 views
An ice cube tray contains enough water at 22.0 C to make 18 ice cubes that each have a mass of 30.0g. The tray is placed in a
1. 4 answers
2. asked by Jake
3. 2,989 views
help please. i don't even know where to startAn empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after
1. 2 answers
2. asked by Nikki
3. 570 views
The density of iron at 25 C is 7.871 g/cm^3what is the volume of one mole of solid iron at 25 C? i understand that volume = m/d
1. 1 answer
2. asked by Matt
3. 307 views
2-propanol has a delta Hvp of 701 J/g and a vapor pressure of 31.6 mmHg at 20.0 degrees C. Estimate the normal boiling point of
1. 3 answers
2. asked by John
3. 472 views
what type of cubic structure is iron?
1. 5 answers
2. asked by Matt
3. 704 views
hwo do i calculate theoretical yield?
1. 3 answers
2. asked by Sean
3. 453 views
I'm currently working on a lab in which I have to make the solution boil at 245 degrees F. The solution will be a mix of
1. 2 answers
2. asked by Jonathan
3. 951 views
<b>For the reaction A + 2B + C ----> 2 D + E the following initial concentration and initial reaction rates are found:[A]null
1. 1 answer
2. asked by Gabe
3. 1,100 views
Hello, I'm working these homework questions out; however it is a series of questions and without one step correctly completed,
1. 4 answers
2. asked by Sigurd
3. 1,394 views
Please help me with these AP Chemistry homework problems and show me the steps how to find the solutions:Liquid-Liquid
1. 2 answers
2. asked by shylo
3. 600 views
Please help me with these AP CHEM homework problems problems and show me the steps:Mass per Volume Results for Titrations:
1. 3 answers
2. asked by shylo
3. 540 views
Please help me with thses AP CHEM homework problems and show the steps to how to find the solutions:Solid Liquid Titrations:
1. 2 answers
2. asked by shylo
3. 1,049 views
How many electrons in an atom can have the following designations?5px 2s n = 4 5p 7py 4f how do u do these?
1. 3 answers
2. asked by Giznelbell
3. 3,174 views
Kc = 1.87 10-3 for the following reaction.PH3BCl3(s)=>PH3(g) + BCl3(g) (a) Calculate the equilibrium concentrations of PH3 and
1. 3 answers
2. asked by Ashley
3. 1,038 views
HIO3 + FeI2 + HCl --> FeCl3 + ICl(in acidic solution) Show and label the two balanced half-reactions (oxidation and reduction).
1. 1 answer
2. asked by dylan
3. 451 views
Comparing the Noble Gases to the Alkaline Metals, what are major similarities and major difference between the two?
1. 2 answers
2. asked by Jordan
3. 457 views
formula for bipyridyl
1. 5 answers
2. asked by HELP PLEASE
3. 914 views
potassium tetrabromo(ortho-phenanthroline)- cobaltate(III)
1. 2 answers
2. asked by HELP PLEASE
3. 1,039 views
When 0.03 moles of lead(II) nitrate are dissolved in enough water to make 266 milliliters of solution, what is the molar
1. 2 answers
2. asked by Joe
3. 593 views
A secondary alcohol results from the attachment of a hydroxy group to which carbon atom?C | <---GIVEN STRUCTURE C1-C2-C3-C4 A)
1. 1 answer
2. asked by Anonymous
3. 316 views
Aspirin has the structural formula below. Which functional groups does this molecule contain?I. Acid II. Alcohol III. Ester IV.
1. 2 answers
2. asked by Anonymous
3. 806 views
It was found that 39.9 mLof this diluted solution solution was needed to reach the stoichiometric point in a titration of 7 mL
1. 3 answers
2. asked by Ankit
3. 532 views
is there some rule on weak and strong electrolytes and the amount of concentration requiered for each? for example are weak
1. 2 answers
2. asked by Sally
3. 625 views
A solution formed by mixing 13.0 mL of 0.013 M Ba(OH)2 with 31.0 mL of 7.0 ✕ 10-3 M NaOH. Calculate [OH-]
1. 3 answers
2. asked by Jordyn
3. 629 views
I have multiple...1) If a metal ore contains 23.1% pure metal, how many pounds of pure metal can be obtained from 38 pounds of
1. 1 answer
2. asked by Shannon
3. 687 views
If 488 mL of 2.9 molar HCl solution is added to191 mL of 2.8 molar Ba(OH)2 solution, what will be the molarity of BaCl2 in the
1. 2 answers
2. asked by Kinsey
3. 476 views
You need to use KH2PO4 and K2HPO4 to prepare a buffer with a pH of 7.45. Which of the following ratios of [base]/[acid] is
1. 3 answers
2. asked by Jenny
3. 2,065 views
A bar of strontium metal is immersed in a 1.0 M copper(ll) nitrate solution. write the net ionic. I have the molecular formula
1. 2 answers
2. asked by Sophie
3. 1,007 views
How much time will elapse before the N2O5concentration decreases from 0.078 mol/L to 0.038 mol/L? Answer in units of min. IM not
1. 1 answer
2. asked by Asha
3. 426 views
What volume of 0.344 M K3PO4 is required toreact with 79 mL of 0.87 M MgCl2 according to the equation 2 K3PO4 + 3 MgCl2 →
1. 1 answer
2. asked by jordan
3. 295 views
Silver nitrate (AgNO3) reacts with sodiumchloride as indicated by the equation AgNO3 + NaCl → AgCl + NaNO3 . How many grams of
1. 2 answers
2. asked by jordan
3. 664 views
Silver nitrate (AgNO3) reacts with sodiumchloride as indicated by the equation AgNO3 + NaCl → AgCl + NaNO3 . How many grams of
1. 3 answers
2. asked by annonomus
3. 1,839 views
What Is an Alloy?
1. 1 answer
2. asked by Aanshi Patel
3. 54 views