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How many grams of KO2 are needed to produce 120.0 L of O2 at 19.5 degrees Celsius and 1.00 atm? Given the balanced equation below:
4KO2 + 2 CO2 ----> 2 K2CO3 + 3 O2
Calculate the amount of heat liberated (in kJ) from 375 g of mercury when it cools from 89.2°C to 15.7°C
how many joules are required to heat 2 l of water in a pot from 20 degree c to the boiling point of water? the specific
describe the molecular geometry of formic acid in terms of hybrid orbitals,bond angles and sigma and pi bond, and how many lone pairs are in the molecule.
what minimum number of packages of buns, packages of patties, and jars of pickles do you need, respectively? Express your answer as three integers separated by commas.
A student assay a solution of H3PO4 by titrating 20.00mL of the solution with .01020M NaOH. An endpoint at ph 5 was observed after 10.11 mL of NaOH had been added.
Solid aluminum reacts according to the balanced equation. If a total of 830 kJ of heat is produced in the reaction as written, how many moles of Al2S3 are produced?
Assuming that Hf and S values are independent of temperature, determine theoretically at what temp,T, will this reaction become spontaneous at standard conditions
Question- An ideal gaseous reaction occurs at a constant pressure of 40.0atm and releases 73.5kJ of heat. Before the reaction the volume of the system was 8.00L. After the reaction, the volume of the system was 3.00L.
When a particular metal is illuminated with photons, one electron is observed for each absorbed photon. What effect would decreasing the wavelength and number of photons, have on the electrons leaving the surface
Assume that the products are carbon dioxide and water. Answer the following question: If ONE mole of iso-octane is burned, how many mols of water are formed
1.002 g of dysprosium chromate decahydrate (formula weight 853.11g/mol) will dissolve in 100 ml of water at 25oC. When 2.00 grams of dysprosium chromate decahydrate is added to 100 ml of water the equilibrium below is established.
The normal boiling and freezing points of substance X are 87.3 K and 84.0 K respectively. The triple point is at 82.7 K and 0.68 atmosphere. a. Draw a phase diagram for substance X. Label the regions in which the s,l, and g phases are stable.
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