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explain how dissolving the group iv carbonate precipitate with 6M CH3COOH, followed by the addition of extra acetic acid.
the dissolution of 5.25g of a substance in 565g of benzene at 298k raises the boiling point by 0.6225 deg celsius. note
Choose the correct expression for Keq and description (homogeneous or heterogeneous) for the following reaction: Sn2+(aq) + H2(g)---> Sn(s) + 2 H+(aq)
Hydrochloric acid is added to zinc. How many mls of 0.500 M HCl are needed to react completely with 25.0 g of zinc metal
The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7 1010 decay events per second (the number of decay events from 1 g of radium in 1 s).
Explain why the element bromine prefers to have its two atoms form covalent bonds rather than ionic bonds
calculate the ph of soultion prepared by adding20.0ml of 0.100m hcl to 80.0ml of a buffer that is comprised pf 0.25 M NH2NH2
Calculate the theoretical and percent yields, b: 20.0g of NaHCO3 is heated to form Na2CO3. Calculate the theoretical loss in weight on heating
A wavelength of 880 nm produces how much energy in joules per photon and kilojoules per mole of photons
Calculate the radius of the metal atom. A hypothetical metal has a face-centered cubic unit cell with the edge length of 4.943 Å.
A 126 piece of metal is heated to 285 and dropped into 83.0 of water at 26. If the final temperature of the water and metal is 58.3.
Calculate the percent population of the first 10 rotational energy levels for HBr (rotational constant B = 8.46cm^-1) at 298K?
What is the molecular formula of each compound. (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.
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