Year 11 post test MTD calculation practice

Moles required = C x V = moles.

RFM of sodium carbonate =

mass = moles x RFM. = g.

(b) (i) CO₃^2- + 2H⁺ -> CO₂ + H₂O

(b) (ii) moles sodium carbonate = C x V =

moles HCl = 2 x moles of sodium carbonate =

concentration of HCl = moles / volume = mol/dm³

RFM glucose =

moles = mass / RFM =

moles ethanol = 2 x mol glucose =

RFM ethanol =

mass of ethanol = moles x RFM = g

Moles carbon dioxide = moles of ethanol =

Volume of carbon dioxide = moles x volume (of one mole) = cm³

Volume of carbon dioxide in dm3 - =

Calculate the atom economy if ethanol is the only desired product.

Atom economy = mass of desired product / total mass of products x 100 %

Moles Ag = mass / RAM =

Moles Cu = Moles Ag / 2 =

Mass Cu = Moles Cu x RAM = g

Moles of oxygen = mass / RAM =

Moles of tin = mass /RAM =

Divide both values by the smallest value to get SnO

Volume in dm³ = volume in cm³ / 1000 =

Concentration = mass / volume = g/dm³

Or just use logic if I have a 1/4 of the volume I will have a 1/4 of the mass so the full mass is 4 x mass in 250cm³