rolanda20 rolanda20

27-11-2022
Chemistry

Answered

The graph below shows the volume of hydrogen evolved against time for the reaction of a piece of solid magnesium metal with 1.00 mol dm-3 hydrochloric acid, HCl(aq). Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) (a) Deduce the rate of the reaction at time t = 1.5 minutes. (i) Assuming magnesium is the limiting reagent and the gas was collected at STP (i) Calculate the mass of the piece of magnesium metal used. (ii) Describe how the graph would have looked if the magnesium metal had been in powdered form.

Answer :

Other Questions

Which combination will produce a precipitate? a) [tex]\mathrm{NH}_4 \mathrm{OH}(\mathrm{aq})[/tex] and [tex]\mathrm{HCl}(\mathrm{aq})[/tex] b) [tex]\mathrm{AgNO

A research team examined whether the ingestion of licorice decreases the plasma concentration of magnesium. Twenty-three volunteers ingested a considerable amou

in the reaction of 2-chloro-2-methylpropane with [tex]\mathrm{AgNO}[/tex] in ethanol, the ether will not be the only product of this reaction. What other produc

draw the major organic product for the reaction shown

Sequence Determination of the Brain Peptide Leucine Enkephalin A group of peptides that influence nerve transmission in certain parts of the brain has been isol

Draw the Lewis structure for CSe2 in the window below and then answer the questions that follow. What is the electron-pair geometry for C in CSe2? ____ What is

Benedict's reagent detects the presence of simple sugars in food. What color indicates the presence of a high level of simple sugars?

Bond order allows us to identify: Select the correct answer below: the mass of the electrons based on bond strength the net combination of electrons for the bo

Draw The Lewis Structure For PF3Cl2 In The Window Below And Then Decide If The Molecule Is Polar Or Nonpolar

draw the Lewis structure for SF5Cl AND I3- in the window below and then answer the questions that follow.