Question

У рекцію з оксидом купруму (2) вступило 12,4сульфатної кислоти обчислити масу сульфату купруму(2) що утворює під час реакцій

Answer 1

           12,4          X
CuO+H2SO4-->CuSO4+H2O
            98            159.5
M(H2SO4)=98g/mol  ,M(CuSO4)=159.5g/mol
12.4/98 = X/159.5   X=20.2 g
ответ 20.2 г

Answer 2

Reaction Calculation

To calculate the mass of copper(II) sulfate formed when 12.4 grams of sulfuric acid reacts with copper(II) oxide, we can start by writing the balanced chemical equation for the reaction.

The balanced chemical equation for the reaction between copper(II) oxide and sulfuric acid is: CuO + H2SO4 → CuSO4 + H2O

Molar Ratios

From the balanced chemical equation, we can see that 1 mole of copper(II) oxide reacts with 1 mole of sulfuric acid to produce 1 mole of copper(II) sulfate.

Molar Mass Calculation

First, we need to calculate the molar mass of copper(II) sulfate. The molar mass of copper(II) sulfate (CuSO4) can be calculated as follows: - Copper (Cu): 63.55 g/mol - Sulfur (S): 32.07 g/mol - Oxygen (O): 16.00 g/mol (there are 4 oxygen atoms in the formula)

So, the molar mass of copper(II) sulfate (CuSO4) is: 63.55 + 32.07 + (16.00 * 4) = 159.60 g/mol

Calculation

Now, we can calculate the mass of copper(II) sulfate formed using the given mass of sulfuric acid (12.4 grams) and the molar mass of copper(II) sulfate.

Using the molar mass of copper(II) sulfate (159.60 g/mol) and the given mass of sulfuric acid (12.4 grams), we can calculate the moles of sulfuric acid and then use the molar ratio to find the moles of copper(II) sulfate formed. Finally, we can convert the moles of copper(II) sulfate to grams.

Let's calculate: Moles of H2SO4 = Given mass / Molar mass of H2SO4 Moles of CuSO4 = Moles of H2SO4 (from the balanced equation) Mass of CuSO4 = Moles of CuSO4 * Molar mass of CuSO4

Calculation Steps

1. Moles of H2SO4 = 12.4 g / (32.07 + 4*16.00) g/mol 2. Moles of CuSO4 = Moles of H2SO4 (from the balanced equation) 3. Mass of CuSO4 = Moles of CuSO4 * 159.60 g/mol

Let's calculate the moles of sulfuric acid and the mass of copper(II) sulfate formed using the given mass of sulfuric acid.