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One of the allotropes of sulfur is the orthorhombic form, formula S8 (8 is a subscript), which is a brittle, yellow solid. It does not conduct electricity. this form is stable below 94.5 deg C. It dissolves more in nonpolar solvents:
A) What type of bonds Does S8 have?
B) what type of solid is this?
calculate the difference in mass that is hold by a 500.0mL flask at a temperature of 0.0°C from that at temperature of 20.0 °C? (you can assume the volume of the sample at 0.0 °C temperature =volume of the sample at 20.0°C)
unknown concentration of the weak base ammonia are standardized. 50.0 mL of the basic solution are titrated with 0.200 M HCl. The end point occurs after 38.8 mL of acid are added. What is the concentration of ammonia in the 2 L flask?
Write a molecular equation for the precipitation reaction (if any) that occurs when the following solution are mixed. How do you convert these over and please show steps.
Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal. M(OH)2 --> M^(2+0 +2OH^(-) Ksp= 5x10^(-16) M(OH)2 +2OH^(-) --> M(OH)4^(2-) Kf= 0.07. Estimate the solubility of M(OH)2 in a solution buffered at pH = 7.0, 10.0, and 14.0.
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A solution which is 0.10 m in NaCl(aq) has the same equilibrium vapor pressure as a solution which is 0.10 m CaCl2(aq)
Assuming that the atoms are spheres in contact along the face diagonal, what is the radius of a Ar atom (in Angstroms)? An angstrom = 10-10 m or 10-8 cm.
Find the equilibrium pH of a 10^-3 M NaCN solution by using graphical methods, try to find the equilibrium pH with the charge balance and separately with the proton condition.
a second order reaction has rate constant .028M^-1hr^-1. initial concentration is 3.4 M. what will be the percentage remaining after a period of 24 hours?
What is the final river temperature downstream? Assume that the density of the waste stream is 1000 kg/m3.
How many grams of the element nickel are contained in 10.0g of a 10.2 wt% solution of nicke sulfate hexahydrate, NiSO4*6H2O?
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