Converting from mol/L to mmol/mL
On my lab report sheet, I am asked several times to convert concentrations and standard deviations from mol/L to mmol/mL and asked to show the unit conversion calculation required. I am confused,...
On my lab report sheet, I am asked several times to convert concentrations and standard deviations from mol/L to mmol/mL and asked to show the unit conversion calculation required. I am confused,...
Ideal Gas Law hand out with 6 examples.
Calculate the isotopic abundances when given the average atomic weight and the isotopic weights. with 12 Sample Questions and Answe...
A guide to the basic structures of organic chemistry functional groups
Handy equations for basic physical chemistry
Prefixes and suffixes by functional group in priority order - good reference when learning how to properly name compounds!
Let us be brutally honest here. You, the student, have spent the last few weeks agonizing over doing well on the chemistry regents and subsequently had nightmares about the prospects. Even being a victim of Freddie Krueger “Nightmare on Elm Street” seemed to have much more appeal than preparing... read more
Find the final temperature go the H20(l) sample.
Atomic Weight of two elements 'A' and 'B' respectively are 32 and 16 .They combine to form two gases AB2 and AB4 and the Mixture is found to have a vapor density of 38.4. the no of...
if a piece of iron gain 10% of its weight due to partial rusting into Fe2o3 the % of total iron that has rusted is ?
One mol mixture of Feo and Fe3o4 containing equal moles of each on reaction with excess 02 give 'n' moles of Fe2o3 . Calculate 'N'
The school year is nicely wrapped up and New York students are filled with trepidation at the prospect of encountering the chemistry regents face to face which is just a few short days away. Next Tuesday to be exact. Admittedly, there is not much time to learn concepts that should have been learned earlier on in the school year but if you absorbed just a few critical elements along... read more
The school year is nicely wrapped up and New York students are filled with trepidation at the prospect of encountering the chemistry regents face to face which is just a few short days away. Next Tuesday to be exact. Admittedly, there is not much time to learn concepts that should have been learned earlier on in the school year but if you absorbed just a few critical elements along... read more
How many oxygen molecules are in 22.4 liters of oxygen gas at 273 K and 101.3 kPa? A)6.023 × 1023 B)1.2046 × 1024 C)2.24 × 10234 D)1.3491 × 1025
pls tell today itself
A student reacted with the following unknown metal, M, with HCI and collecyed the following data : mass of metal = 0.300, volume of water displaced = 227.3 mL, temperature of H2 =25C , barometric...
If 150g of carbon react with 250g of cl2 and the reaction has an 85% yield , how many gram of ccl4 are produced ?
2.5 g of a mixture of a BaO and CaO when heated with h2so4 ,produce 4.713g of the mixed sulphates . Find the percentage of BaO present in the mixture
solve the following problems. b sure to show all your work and use correct units for your answer.
no of oxygen atom in 10ml of h20 (l)