Question 15 A Compound Is Composed Of Two Elements X And Y And Has The Formula Xayb Where A And B Are Whole Numbers The 1 (27.95 KiB) Viewed 37 times
Question 15 A Compound Is Composed Of Two Elements X And Y And Has The Formula Xayb Where A And B Are Whole Numbers The 2 (23.46 KiB) Viewed 37 times
QUESTION 15 A compound is composed of two elements X and Y and has the formula XaYb where a and b are whole numbers. The compound is compose 8313 g of element X and 1687 g of element Y. The molar mass of element X is 23.0 g/mol. The molar mass of element Y is 14.0 g/mol. Determine the value of the subscripts A and B for this compound A= B= QUESTION 16 Determine the mass in grams of Al2(SO4)3 that is produced when 487 mL of 0.854 M Na2SO4 reacts completely with sufficient A(NO3)3 according to the reaction below. (Give your answer with the proper number of significant figures and do not provide a unit) 3 Na SO (aq) + 2Al(NO),(aq) →6 NaNO (aq) + Al(SO), (*)
Complete and balance the following double displacement reactions. Use the solubility rules to include (aq) and (s) labels for aqueous and solid products. Use (1) to indicate non-aqueous liquid products. Answer K PO (aq) + Al(NO)(aq) 4 Mg(OH)₂ (aq) + H₂ 2 → H₂SO (aq) - Answer QUESTION 18 A titration was performed using 48 1 ml of a 0.559 M solution of KOH using a 0.377 M solution of H2SO4 Calculate the volume (in ml.) of the sulfuric acid solution needed to reach equivalence point. The chemical equation for the titration is shown below Give your answer to the proper number of significant figures and do not include units. 2KOH(aq) + H₂SO4(q)-> K₂504(aq) + 2 H₂O(l)
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