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6HF + SiO2 => H2SiF6 + 2H2O Delta Hrxn = -670kJ/mol
What is the enthalpy change if the feed into a reactor contains 3 mol HF and 1.5 mol SiO2
The confusing part is the kJ/mol vs just kJ. I see that 3 mol HF will react with 0.5 mol SiO2 is it just -670 x 3.5?
What is the vapor pressure, at 28 degrees C, of a solution made by mixing 80.0 g of C3H7SH and 120.0 g of CH3CN, if Raoult's Law is obeyed
how many whole drops (.05 mL/drop) of 6 M HCl are required to dissolve the calcium carbonate? b) What is the Ca concentration when this is dissolved and diluted to 100.00mL
Given the average bond enthalpies listed below, calculate the delta H for the reaction: N2 + 3H2 --> 2NH3
Based on the first and fourth sketches(Part C figure) , what is the density of the block? First sketch shows mass of the block = 50g. Second sketch shows block completely immersed in water(at 20 degree Celsius), mass of block now = 5.6g and densit..
Calcium phosphide is used to make fireworks. Write a conversion factor that converts between moles of calcium ions in calcium phosphide, Ca3P2, and moles of Ca3P2.
what would the rate constant be at a temperature of 150C for the same reaction described in Part A?
Write a dissociation equation of AlCl3 showing its sepatation into aqueous ions.
What multiple of Ka must the initial concentration of a weak acid exceed, for the initial concentration and the equilibrium concentration to be within 9.86 percent of each other
An NaOH solution contains 2.6 mol of NaOH, and its concentration is 1.3 M. What is its volume?
A 5.00-L reaction vessel contains hydrogen at a partial pressure of 0.588 atm and oxygen gas at a partial pressure of 0.302 atm. Which element is the limiting reactant in the following reaction? 2H2(g) + O2 (g) -> 2H2O(g)
Acrylonitrile, C3H3N (53.07 g/mol), is used in the synthesis of a variety of plastics. What mass of acrylonitrile can be produced from a mixtur.
what is the functional groups and molecular formula of aspartame, the NH2 is below the 3rd C and the CH2 is below the 5th C
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