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Question- A) Describe in brief how electronegativity values can be used to predict the percent ionic character of a bond between two atoms.
B) What is the formal charge on phosphorus in a Lewis structure for the phosphate ion that satisfies the octet rule?
C) How many lone pairs of electrons are on the central atom in the Lewis structure for NH3?
I am not able to get the correct answer please help me
Two moles of sucrose are dissolved in eight moles of water. Assume that the solution follows Raoult's Law, but that the vapor pressure of sucrose is negligible, as it is for most solids. The distillation is carried out at 1 atm.
The molar mass of cellulose is approximately 6.0 x 10^5 g/mol and the molar mass of a soluble starch is on the order of 4.0 x 10^3 g/mol. The monomer unit in both of these molecules has the emperical formula C6H10O5.
The normal range for the carbonyl of a ketone is 1715 cm -1 . Why does the carbonyl peak for cyclopentanone appear at 1750 cm -1. Ring Strain
A certain carbon-hydrogen compound contains 84.1% C by mass and the remainder is hydrogen. What is the empirical formula of the compound
nickel is to be deposited on a platinum cathode area120cm2 from a solution that is 0.200m in ni2 and buffered to a ph
determine the identity of the diatomic gas when a boy places 59.5 gm of a diatomic gas into a ten litres container at
What is the effect on the boiling point of a solution (e.g., water) produced by a soluble nonvolatile substance (e.g., sodium chloride)? What is the effect of an insoluble substance such as sand or charcoal?
An unknown amount of magnesium metal reacts with 100.0 mL 0f 0.100M aqueous hydrochloric acid. The final solution is acidic, and titrated to an endpoint using 0.150 M aqueous sodium hydroxide. The endpoint was neutralized after the addition of 16...
How many grams of propanol (C3H7OH, 60.10 g/mol) would be needed to make 750 mL of a solution with an osmotic pressure of 25 atm at 25°C? (R = 0.0821 L/atm/K/mol)
Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
titrating an unknown weak acid you hope to identify. Your titrant is a 0.0935 mol/L NaOH solution, and the titration requires 21.8 mL to reach the equivalence point. How many moles of acid were in your sample?
A swimming pool has a volume of 1.8 x 104 gallons. How many hours will it take to fill the pool if water is added at a rate of 3.9 gal/min
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