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What is Stoichiometry?
Give an example of stoichiometry that you see in your everyday life. How does this knowledge relate to the nursing/healthcare field?
Nitrating Acetanilide- draw the resonance forms for the arenium ion formed during your reaction (nitroacetanilide)
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure Y--X(with 2 lone pairs)--Y can be abbreviated as XY2Z2
Consider the reaction 3CaCl2(aq) + 2Na3PO4(aq) --> Ca3(PO4)2(s) + 6 NaCl(aq) (molar mass of calcium phosphate is 310.18 g/mol)
The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
a gas sample occupies 4.20 l under a pressure of 800 torr at 350K.At what temperature will it occupy 3.60 L at the same pressure?
The flue gases after that pass through a heat exchanger from which they emerge at 50°C. Per mole of methane, explain how much heat is lost from the furnace and how much heat is transferred in the heat exchanger
Nitrous oxide gas is used by some denatl practitioners as a anesthetic. Nitrous oxide can be produced in small quantities in the laboratory by cardful heating of ammonium nitrate. Write the unbalanced chemical equation for the reaction.
Write a hybridization and bonding scheme for each ion. Sketch the structure, including overlapping orbitals, and label all bonds. PF6-
A patient is given 0.055mg of technetium -99m, a radioactive isotope with a half-life of about 6.0 hours.
You have a solution made by dissolving 1.5230g of solid Na2(C2O4) and diluting to a volume of 250.00mL: How many moles of sodium ions are contained in this solution
What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.56 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.30 mol of HI? (assume no volume change) p..
An automobile gasoline tank holds 49kg of gasoline. When the gasoline burns, 172kg of oxygen are consumed and carbon dioxide and water are produced.
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