Chemistry

What is the difference between acetone and ethly acetate

Acetone: CH3COCH3 (ketone) Ethyl Acetate: CH3COOCH2CH3 (ester)

Difference between condensation polymerization and dehydration synthesis

Is there a difference? if so please expain :)-Yes and No - hows that for an answer?A dehydration synthesis comes about whenever you link two molecules together by eliminating water between the two.It

A Chemistry Question, Please answer I need so much help...

The pressure of molecular oxygen in a 10.5 L tank was 1.95 atm at 27.4 degrees C. If the gas is allowed to expand into a larger tank with a volume of 15.5 L at 32.0 degrees C, what would the final pre

How do you solve for w/v% concentration when given volume of acid, volume of base, and molarity of base

I was given a question that I got wrong, then was given the answer... The question is as follows: In a titration experiment you used 30 mL of vinegar and 70 mL of NaOH. If the molarity of the base i

Tough AP chemistry homework problem.. please help

Tetrodotoxin is a toxic chemical found in Fugu pufferfish, a popular but rare delicacy in Japan. This compound has an LD50 (the amount of substance that is lethal to 50% of the population sample) of

If 0.459 g of NO2 (g) has a volume of 14.2 L and a pressure of 1.75 atm, calculate the temperature of the gas.

In kelvin (k). PLEASE. :)-(0.459 g NO2) / (46.0056 g NO2/mol) = 0.009977 mole NO2 PV = nRT T = PV/nR = (1.75 atm) (14.2 L) / ( 0.009977 mol) (0.08205746 L atm /K mol) = 30400 degrees K

Chemistry of ACID RAIN?

I dont understand this part: carbonic acid ionizes in water to form low concentrations of carbonate and hydronium ions : 2H2O + H2CO3 --> CO32 + H30 . Why does it matter if it ionizes in water ? Is i

Help with a Chem question

1) Using the Arrhenius definition, define an acid and a base-According to the Arrhenius definition, an acid is any substance, which when dissolved in water gives hydrogen ion. According to the Arrhen

Can someone please help me? 10 points!!!!!!

If you can answer any of these, it would greatly be appreciated!! :) 1) All nuclei consists of neutrons and two or more protons except what? 2) All nuclei have an atomic number greater than what are

Ideal behavior, calculating volume(in mL and L) at STP CHEMISTRY

if 157 ml of dry O2 gas is collected at 24 degrees Celsius and at a pressure of 750 Torr, what is its volume(in ml and liters) at STP? assume ideal behavior. Not sure how to go about this problem. If

What happens to a catalyst in a reaction

it is unchanged it is incorporated into the products it evaporates away it is incorporated into the reactants-unchanged

Organic Chemistry Help: Name some commercial uses for 3 alkenes :D

Uses of alkenes Alkenes are extremely important in the manufacture of plastics. All plastics are in some way related to alkenes. The names of some plastics (Polythene or Poly Ethene, Polypropene), re

Quick chemistry problem, how much water

How much water should be added to 16.6 g CaCl2 (s) (molar mass 110.9 g/mol) to prepare a solution such that the concentration of Cl– (aq) is 0.60 M? Assume that the volume of CaCl2 is negligible.-n(Ca

What is the maximum amount of KCL that can dissolve in 200g of water

a. 17g b.34g c.68g d. 6800g-The solubility of KCl in H2O at 20C is 34.2 g per 100 g. So the amount that can dissolve in 200 g is twice that, or 68 g.

Density gas question help

The density of a gas is 1.20 g/l at 25 degree celcius and 102.6 kPa. what is the density of the gas at stp? hwo do you do this im so confused thx-PV = nRT Density is proportional to n/V which is equal