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Answer:
a. 2NAOH + H2SO4 —> NA2SO4 + 2H2O
b. The concentration of the acid is 0.0638M
Explanation:Please see attachment for explanation
If a sample is packed poorly, the sample will not heat evenly and will take longer to melt.
Looks like exponential decay. Collision theory is consistent with this model because at higher reactant concentrations we expect the reactants to encounter each other more often (collide) and as the concentration decreases we expect fewer and fewer collision events so the rate of reaction becomes less and less.
The mole ratio one would need to calculate will be the ratio of grams of O2 are in one mole; that's the atomic mass of oxygen from the periodic table.
Oxygen has an atomic mass of 15.998 (most of the time, rounding to 16 is fine). But remember, oxygen always exists in nature as a diatomic molecule (two atoms covalently bonded together) as O2...so (32 grams O2/1 mole O2)
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