Ouch-up cleaning is carried out in a confined iso tank measured 22 m3. if 20 cc of toluene (mw = 92, sg = 0.866 g/cc) is used for cleaning and the solvent is totally evaporated into the confined space, calculate the mass concentration of toluene vapour in the tank at 25°c and 1 atm (760 mm hg). convert this to volume concentration in ppm and % volume. assume uniform mixing and there is no dilution ventilation with outside air.
b) repeat the calculation of mass concentration and volume concentration if the cleaning work is carried out at 35°c and 1 atm (760 mm hg).

so what is the problem with your lab report and whats the subject of the lab report? i will you

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph