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Kranti S

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Numerade tutor for 5 years
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Kranti's Quick Ask Videos

04:11
Chemistry 101

What are the SALCs on the fluorine atoms for σ-bonding in IF5?
a. a1' + 2e'
b. 2a1 + b1 + e
c. a1 + b1 + b2 + e
d. 2a1' + a2" + e'

For a metal carbonyl, which of the following symmetry operators will always generate a zero character when applied to C=O bond stretching.
a. σh
b. S6
c. C2
d. E

Using Molecular Orbital ideas, choose the arrangement of the following ligands in which they are ordered according to their increasing ability to split the t2g and eg d-orbitals in octahedral complexes.
F-, CO, Cl-
a. CO, Cl-, F-
b. CO, F-, Cl-
c. F-, Cl-, CO
d. Cl-, CO, F-

01:59
Calculus 3

Suppose 9 quarters, 8 dimes, 9 nickels, and 6 pennies are in a box. One coin is selected at random. What is the expected value of the money drawn from the box?____ cents (round to the nearest tenth as needed)

02:06
Chemistry 101

1) Solid sodium chromate is slowly added to 175 mL of a 0.0381 M barium nitrate solution. The concentration of chromate ion required to just initiate precipitation is [M].
2) A student measures the molar solubility of silver carbonate in a water solution to be 1.24×10^-4 M. Based on her data, the solubility product constant for this compound is [ ].

02:50
Chemistry 101

How many resonance structures can be drawn for the selenate ion
(SeO4 2-) in which the central selenium atom bears a -1 formal
charge and the oxygens bear formal charges of either zero or
-1?
Enter your answer as a whole Number.

02:16
Chemistry 101

Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels.
The combustion enthalpy of cyclobutane, C4H8, is 2.721×10^3 kJ/mol.
Write a balanced equation for the complete combustion of cyclobutane. ________+___________ = __________+ ____________
Calculate how much energy is released during the complete combustion of 491 g cyclobutane. ___________________ kJ?

01:34
Chemistry 101

The standard enthalpy of vaporization of Ammonia (NH3) is 21.5 kJ/mol at its boiling temperature of -28.2 °C. How much heat in the unit of kJ is released when 55 g of this compound is condensed at -28.2 °C? Please keep your answer to 1 decimal place.

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