Chemistry

Chemistry problem finding temperature

given 0.142 mol Argon volume of Argon=834 ml Argon Pressure of Argon=4.83 wanted: the temperature of the Ar gas sample on the celsius scale?-PV = nRT (4.83 probably atmospheres) (0.834 Litres) = 0.

Calculate the vapor pressure of water above a solution prepared by adding 24.0g of lactose to 200.0g of water

Calculate the vapor pressure of water above a solution prepared by adding 24.0g of lactoseto 200.0g of water at 338 K. (Vapor-pressure of water at 338 K 187.5 torr.) Ive done this problem ten times,

Chemistry problem!!!!!!~~~

identify the net ionic equation for the reaction of magnesium carbonate and nitric acid-CO3(2-)+2H3O(+) = 3H2O + CO2

Chemistry calculation problem with volume

1.000 moles of Xe gas has a mass of 131.3g. what is the volume of 200.0g of xenon gas at STP??-find moles 200.0g of xenon times (1 mol Xe / 131.3 grams ) = 1.5232 moles of Xe since 1 moleos gas occup

If on LSD, how can you hear colors and see sounds

People say that can happen if on the drug, and what do u see on the drug-The connections and pathways that you have made up in your brain over your whole life are what give you your senses and let you

Math conversion homework problem!

in mexico avacados are 125 pesos per kilogram. what is the cost of an avacado that weighs .45 lb if the exchange rate is 11 pesos to the dollar?-find the mass in kilograms 0.45 lb at (1 kg / 2.205 pou

How will the conductivities of ionic compounds of elements in the same family compare

Elements in the same family or groups have the same number of covalent electrons on their outer shells according to the shell model. So, elements who are of the same family behavior similarly chemical

The integrated rate law allows chemists to predict the reactant concentration after a certain amount of time,

The integrated rate law allows chemists to predict the reactant concentration after a certain amount of time, or the time it would take for a certain concentration to be reached. The integrated rate

How to convert molecules to N Atoms

My chemistry homework requires me to convert molecules to N atoms and from N atoms to molecules in C2H5(NO2)3. I have no idea what to do. For example i have to find x molecules in 7.5*10^22 N atoms?

C2H6O2's density is 1.11 g/cm3 at 20 degrees C. If you need 500 mL of this liquid, what mass in grams, is req

You need to remember that 1 cm3 is equal to 1 mL, so knowing this you can now calculate how many grams you need by cross multiplying. 1.11 g/mL x 500 mL = 555 g

What can you change when drawing resonance structures

this question in my study pack has got me real confused.... i know its the only way you can show bonds using the lewis structure but i still dont really know... a.you can change all the above b.total

Distillate concentrations

Why is it that, when you are doing simple distillation of two liquids, most of the distillate will contain more of the liquid that had a lower boiling point than that with a higher boiling point? I do

Does to have high resistance mean to be a strong electrolyte

I want to know if having a high resistance=strong electrolyte or weak or non-electrolyte And how do you know if the resistance is high?-The stronger the electrolyte, the better it will conduct electri

Will chemistry be easy for me

Im like REALLY good in math, so will chemistry be easy for me?-It certainly helps a lot. First, because in chemistry you still have to do some (simple) maths, and second, because if you are really goo

Do different methods of cooking potatoes produce different taste? Explanation required please!

I only have a few days left and i need to know. someone please!-Take a potato, boil it; take another, bake it; take a third and roast it in the flames of a fire.A spoonful of the center of any of thes