Chemistry

10mL of propanoic acid (Ka=5.5x10^-5) is titrated with 25mL of KOH (0.2M) to the equivalence point..

10mL of an unknown concentration of propanoic acid (Ka=5.5x10^-5) is titrated with 25mL of KOH (0.2M) to the equivalence point. What is the concentration of propanoic acid?-The Ka is not needed; the e

Tin Foil and Bleach Bomb

So I made a small bomb with tin foil and The Works (toilet cleaner), will it work with Bleach because i ran out of The Works?-i would suggest buying more works becuase i tried mixing different stuff i

The molecule CH4 is arranged as a tetrahedron. true or false

True.

What is the mass fraction of phosphorus (P) in this formula

Fertilizer is made ​​by mixing equal masses of potassium nitrate (KNO3) and ammonium phosphate ((NH4)3PO4). What is the mass fraction of phosphorus in this formula? Ive been trying to solve this for 1

The mole concept question: number of molecules, in 5.23g of glucose C6H12O6

formula used?-Formula: No of molecules = (Weight in grams * N) / Molecular Mass, where N = Avogadros number here weight in grams =5.23g Molecular mass of glucose = 180 No of molecules = 5.23 * 6.02

Lewis Bases vs. Nucleophiles

Whats the difference between Lewis Bases and Nucleophiles, if any? My Orgo textbook (along with wikipedia) says they are, by definition, the same thing. However, a Lewis Base has to have an unshared

Chemical Equilibrium Question. Please Answer!

Consider the following Equilibrium: N2O4(g) 2NO2(g) + 58.0 kJ In what direction will the equilibrium shift when each of the following changes is made to a system at equilibrium: a) add N2O4 b) remove

Chemistry HW Help Please

Were doing stoichiometry and my teacher isnt the best at explaining things.Ive taken notes and tried getting help and she never really helps me, and I tried from a few of my peers but none of them und

AP chemistry help please

16) it takes 40.0 mL of 100 M NaOH to titrate 488 mg of a solid monoprotic acid to the phenolphthalein end point. What is the molecular mass of the acid? A) 221 B) 122 C) 68 D) 1.2 x 10^5 E) 1.2 x 10

What is the molarity of the nitrate ions when 0.42 mol of barium nitrate, Ba(NO3)2, is.....

What is the molarity of the nitrate ions when 0.42 mol of barium nitrate, Ba(NO3)2, is dissolved in enough water to make 4.0 L of solution? --------------------------------------… Calculate the mola

Use 2 words to describe water in seawater

Use 2 words to describe water in sea water- compound element mixture solute solution solvent-Solvent- Because the salt has disolved Compound- because the elements have not joined ^^ Could be mixture

Because hemoglobin has a quaternary structure, oxygen binding to this protein is:

A. inhibited B. cooperative C. catalyzed D. incomplete-Reason through it...it cant be A cuz if hemoglobin inhibited the binding of oxygen binding to it... well we wouldnt be alive. For the same reason

Name the following compound

CH3CHCH3 .....|........... ....CHBCH2CH2CH3 (on my screen there is a little box after the B that looks like there should be a subscript, but its like my professor didnt put it in or something). Put

How does Kelvin differ from Fahrenheit and Celsius scales of temperature

How does Kelvin differ from Fahrenheit and Celsius scales of temperature?-The Kelvin scale is an absolute temperature scale. Zero degrees Kelvin this coldest possible temperature; there are no negativ

For the reaction of HCl and NaOH, which of the following type of chemicals will appear in the net equation

weak acid weak base salt water-This one could trick you.HCl and NaOH are each an Arrhenius acid and base.And Arrhenius acid/base reactions always produce a salt and water.The salt actually forms only