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Consider the following entities: SiH3Cl, Kr, SiH3F, and NH3.
(a) Which one will diffuse the fastest?
(b) What is the rms speed (m/s) of the slowest-moving atom or molecule at 25°C?
Please show steps.
Balance each of the subsequent oxidation-reduction reactions. For each of the reaction, demonstrate how electrons are gained and lost during the reaction.
They hydrogen atom isn't actually electronegative sufficient to form bonds to xenon. Explain were the xenon-hydrogen bond to exist, Explain what would be the structure of
5.000 mL of 0.01023 M KIO3 solution was additional to an excess of KI. How many millimoles of triiodide (I3-) is formed
When the one ore lead (ii) sulfide burns in ixygen, the products are lead (ii) oxide and sulfur dioxide A. How many grams of oxygen are required to react with 0.126 mole lead (ii) sulfide?
A 0.150 M aqueous solution of the weak inorganic acid HA was prepared from the pure compound, and three 50.0 mL aliquots were transferred to 100.0 mL volumetric flasks.
When equilibrium is reached at 700C, the total pressure of the system is found to be 4.00 atm. If the equilibrium constant Kp for this reaction is equal to 1.52,
A certain substance has a heat of vaporization of 74.45 kJ/mol. At what Kelvin temperature will the vapor pressure be 6.50 times higher than it was at 287 K
Question- Why would stoichiometric amounts of reagents be needed to obtain pure products when the products are water soluble?
What is the pH of an aqueous solution with a hydrogen ion concentration of [H ] = 1.6 × 10-9 M? b) What is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of [H ] = 1.6 × 10-9 M?
What is ?, the electromotive efficiency to three significant figures?? Open the hint panel below for the definition of electromotive efficiency. (d) What is the pH of an unknown that gives a reading of 19.6 mV with this electrode at 30°C?
The sides of a rectangular block of solid copper metal are measured to be 8.26 cm, 29.84 cm and 0.92 cm (length, width and height). Determine the volume of this block in cm3 to the correct number of significant figures.
You are asked to prepare a 500.0 mL of a 0.750 M iron (III) chloride solution from a bottle that contains that solid. How many grams of iron (III) chloride would be needed to make this solution. Show work please.
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