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Construct the lewis structure model for the covalent compound sulfur difluoride using the following steps.
1) The number of valence electrons is the sulfur atom is ____. The total number of valence electrons in the two flourine atoms is ____. Hence, the total number of valence electrons in SF2 is _____.
2) Arrange the atomic cores for the two flourine atoms with the sulfur atom as the central atom in the space below.
3) Rewrite the atomic cores in the space below. Place an electron pair between each flourine and sulur core.
4) Write the lewis structure for SF2 in the box, distributing the remaining valence electrons so that all three atoms are in accordance with the octect rule.
13.00 moles of gas are in a 5.00 L tank at 22.6 C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a = 2.300 L^2*atm/mol2 and b = 0.0430 L/mol.
A 380. mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present.
Water has vapor pressure of 23.8 torr at 25 degrees celsius. Find vapor pressure of water at 40 degrees celsius if delta H of vaporization is 40.7 KJ/mol.
Draw Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another.
Convert the 5 mM fumaric acid in a waste stream into malate using fumarase immobilized on nonporous spherical particles. The enzyme has a turnover number of 23/sec, and a Km of 1.55 mM. The immobilized enzyme particles are 1 mm in diameter
Determine how much heat is released at constant pressure if 471.0 g of NO2 is produced,?
A gas occupies a volume of 140 mL at 35 celcius and 97 kpa. What is the volume of the gas at conditions of STP?
Maintenance of pH is vital to the cells of all living organisms because enzyme activity is influenced by pH. What is the intracellular pH range of most cells?
The thermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a 1st order reaction 4PH3(g)--- P4(g)+6 H2(g) The half life of the reaction is 35.0 s at 680C calculate a)
In the first step of the synthesis of PABA, why was it necessary to add sodium acetate to have reaction of p-toluidine with acetic anhydride?
A compound with molecular formula C5H11N has no ? bonds. Every carbon atom is connected to exactly two hydrogen atoms.
calculate the number of oxygen molecules released when 1g of silver oxide is broken down.
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