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Calculate the volume of this flask. empty weighed 56.12g , and full of ammonia weighed 87.39g . density of liquid ammonia is 0.625g/l . calculate flask volume in L
one mole of methane has a mass of 16.0 grams. how many grams of methane are needed to make 1.0 l of a 0.20 molar
calculate the uncertainty in nm in the position of an electron with the velocity of 2.00x103 ms the velocity is the
You are going to a birthday party and you want to give the children balloons filled with He gas. How many balloons can you fill to a volume of 2 liters if the internal gas pressure of the tank
A. tetrahedral B. square planar C. square pyramidal D. trigonal bipyramidal E.octahedral F. T-shaped G. see-saw, butterfly, or unsymmetrical tetrahedron
How many chemicaly different hydrogens are in: 4'-Aminoacetophenone; 3'-aminoacetophenone; benzoic acid; 3-toluic acid;1,4-dimethoxybenzene; and fluorenone? alson how would you do a predicted chemical shift and splitting pattern for those
consider the titration of 100.0 ml of 0.200 m acetic acid ka 1.8 10-5 by 0.100 m koh. calculate the ph of the
the lower state was the ground state and the upper state was the first excited state for the flame tests of each metal atom you observed,
The critical constants of ethane are Pc= 48.20 atm, Vc= 148 cm3mol-1, and Tc= 305.4 K. Calculate the van der Waals parameters of the gas and estimate the radius of the molecules.
What is the freezing point of a solution that contains 23.0g of urea, CO(NH2)2, in 275mL water, H2O. Assume a density of water of 1.00 g/mL
Calculate the mass of iodine that will react completely with 40.0 g of aluminum (Al) to form aluminum iodid (AH3)
the hexapeptide n-acetyl-ala-arg-phosphoser-cys-met-glu has pkas of 1.6 4.0 4.2 6.5 8.1 and 12.1. you will need to
Calculate the heat released when 1 kg of white phosphorus is allowed to burn in air at a constant pressure of 1 bar.
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