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Question: What is a difference between atoms and molecules?
CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
Compute the wavelength and the frequency of the photon emitted if an electron in a one dimensional box of length 10.0 angstroms (1.00x 10-9 m) makes a transition from n=2 to n=1 as well as the energy difference is entirely converted into the energ..
72.0 mL of a 1.60 M solution is diluted to a volume of 268 mL. A 134-mL portion of that solution is diluted using 139 mL of water.
Unit Conversions A solution (? = 1.03 g/mL) that is a mixture of water and 5wt% sufuric acid (H2SO4) ?ows through a 45-m long pipe with a 6.0 cm diameter at a rate of 87 L/min. a. What is the molarity (mol/L) of sulfuric acid in the solution?
A 21.0-mL sample of an unknown H3PO$ solution is titrated with a 0.100M NaOH solution. The equivalence point is reached when 18.35mL of NaOH solution is added.
compound a c6h14 gives three different monochlorides on photochemical chlorination. one of these monochlorides is inert
photochromic sunglasses which darken when exposed to light contain a small amount of colorless agcl embedded in the
Calculate the energy emitted by an electron when it drops from energy level 4 down
Presence of Aldehyde Group, An excellent way to identify the presence of an aldehyde group is by 1H NMR. The chemical shift of the aldehydic proton occurs in the 9-10-ppm region
Net ionic equation for 2CH3COOH(aq)+ Sr(OH)2(aq)----> Sr(CH3COO)2(aq)+2H2O(l) Here's the hint the question came with: (hopefully this means something to you) - what are the two products of a neutral. reaction
Calculate the pH of a solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M benzoic acid (Ka = 6.5 x 10-5)
What is the molar enthalpy of the reaction. Based on the enthalpies of formation and of the other components in the reaction, what is the enthalpy of formation of sodium hypochlorite
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