The students were given the task to obtain 10 g of Cu(OH)2 experimentally. In the laboratory, students had access to a 10% CuSO4 solution and a 20% NaOH solution. Calculate how many ml of CuSO4 solution and how many ml of NaOH solution are needed to complete the given task! (Density of 10% CuSO4 solution ρ = 1.107 g/ml and density of 20% NaOH solution ρ = 1.219 g/ml)
Remember that the solution must be in complete form: reaction equations; calculation formulas with numerical values of physical quantities placed in them., units of measurement!

 

2. In nature, carbon occurs in the form of both organic and inorganic compounds. Determine the transformation of the substance in the series and write the corresponding chemical reaction equations for the given series of transformations that describe the ongoing processes for the production of ethanol starting with carbon (IV) oxide! Remember that CO2 is produced in all fuel combustion processes and enters the atmosphere!

CO2 -> A -> (C6H10O5) -> B -> C2H5OH

Write the chemical formulas of substances: A ........., B .......... .

Chemical reaction equations:

Photosynthesis:

Polymerization:

Hydrolysis:

Fermentation: