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Look at an electron affinity chart. If we go to a planet where large deposits of element astatine (At), element 85, were found, define what would be its natural molecular composition? That is what would you say would be the molecular formula for At?(There is only about 30 grams on Earth).
1. At
2. At2
3. At3
4. At4
5. At5
Started with the following chemical Na2O3+H3PO4= NAPO4+H2o +Cr2, find the limiting reagent if you started with 450ml of 2.65 Na2O3 and 88 grams of H3PO4, what is the maximum amount of grams you can make of NaPO4? how many grams of other starting m..
Iodine-123 is used to establish thyroid gland function. If after 79.8 hours, 1.56% of the original dose remains in the patitent, what is the half-life
Why don't we observe the deBroglie wavelength of everyday macroscopic objects (such as a moving car or a thrown baseball)? The wavelength is too small relative to the size of macroscopic objects to be observed.
write out a balanced reaction of methyl salicylate with 2.0 M sodium hydroxide solution to yield, upon work-up with 6.0 M hydrochloric acid, salicylic acid and methanol 2) provide the complete mechanism for the above reaction
You decide to use gel filtration. This works brilliantly and you determine that your protein is 80kDa at the same time. But wait! The gene that corresponds to HMD predicts a protein of only 38kDa. What are two potential causes of this discrepancy?
What are two primary advantages of using nuclear power? Uranium reserves on our planet are 5 million metric tons.
the density of plutonium metal is 19.84 g/cm3 , and the density of plutonium (IV) oxide is 11.46 g/cm3. over a period of 7-10 years, a 2.5-kg sample of plutonium metal stored at Los Alamos National Laboratory in New Mexico was converted to plutoni..
If 10.00 mL of 0.250 M NaOH solution is added to 100.00 mL of the above original buffer solution (described in part 1 of this problem), what is the new pH of the solution?
If the 4.00g sample corresponds to 0.0666 moles of a compound, what is the molecular formula of the unknown molecule (CxHyOz)
if 2.3g of sodium reacted with 1.3g of water,what would be the total mass of sodium hydroxide and hydrogen produce?
calculate the mass loss on heating 1.200 g of a NaHCO3-NaCl mixture containing 65% NaCl
Describe the process design and application - Water and Wastewater Treatment
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