Name the products of the enzymatic hydrolysis of sucrose and the enzyme involved.

How do you know when a substance is boiling?

IrinaVladis [17]

When the substance is creating gases. Sometimes when it’s bubbling up

4 0

2 years ago

Read 2 more answers

The concentration of hydronium ions is greater than 1 × 10–7 for basic solutions. True False

Nataly [62]

Answer : The given statement is, false.

Explanation :

Ionic product of water : It is defined as the product of the concentration of hydrogen ion and the concentration of hydroxide ion.

The mathematical expression will be,

$[H^+][OH^-]=10^{-14}$

When the concentration of hydrogen ion and hydroxide ion are equal then the solution is neutral and the value will be, $1\times 10^{-7}$ . And the pH of the solution is, 7.

When the concentration of hydrogen ion is greater than $1\times 10^{-7}$ then the solution is acidic in nature. And the pH of the solution is, less than 7.

When the concentration of hydrogen ion is less than $1\times 10^{-7}$ then the solution is basic in nature. And the pH of the solution is, greater than 7.

Hence, the given statement is false.

5 0

2 years ago

20 points to whoever can answer these 3 questions correctly

vazorg [7]

Answer:

1.true

2.2

3. false

Explanation:

.........

5 0

2 years ago

Sulfuric acid reacts with aluminum hydroxide by double replacement.

Alinara [238K]

a. 
The balanced equation for the reaction between sulfuric acid and aluminium hydroxide is,
 3H₂SO₄ + 2Al(OH)₃ → Al₂(SO₄)₃ + 6H₂O

mass of H₂SO₄ = 30.0 g 
Molar mass of H₂SO₄ = 98 g/mol
moles of H₂SO₄ = 30.0 g /98g /mol = 0.306 mol

mass of Al(OH)₃ = 25.0 g 
Molar mass of Al(OH)₃ = 78 g/mol
moles of Al(OH)₃ = 25.0 g/ 78 g/mol = 0.321 mol

Stoichiometric ratio between H₂SO₄ and Al(OH)₃ is 3 : 2

Hence reacted moles of H₂SO₄ = 0.306 mol
reacted moles of Al(OH)₃ = 0.306 mol x (2 / 3) = 0.204 mol

Hence the limiting reactant is H₂SO₄ 

b.
According to the above calculation, the excess reactant is Al(OH)₃. 

The reacted moles of Al(OH)₃ = 0.306 mol x (2 / 3) = 0.204 mol

The added moles of Al(OH)₃ = 0.321 mol

Hence the remaining Al(OH)₃ moles = added moles - reacted moles
= 0.321 mol - 0.204 mol
= 0.117 mol

Molar mass of Al(OH)₃ = 78 g/mol
Remaining mass of Al(OH)₃ = number of moles x molar mass
= 0.117 mol x 78 g/mol
= 9.126 g

c.

The products formed from the reaction between aluminium hydroxide and sulfuric acid are Al₂(SO₄)₃ and H₂O

The limiting reactant is H₂SO₄ 

The stoichiometric ratio between H₂SO₄ and Al₂(SO₄)₃ is 3 : 1
Reacted moles of H₂SO₄ = 0.306 mol
Hence the moles of Al₂(SO₄)₃ formed = 0.306 mol / 3
= 0.102 mol
Molar mass of Al₂(SO₄)₃ = 342 g/mol
Mass of Al₂(SO₄)₃ formed = 0.102 mol x 342 g/mol
 = 34.884 g

The stoichiometric ratio between H₂SO₄ and H₂O is 3 : 6
Reacted moles of H₂SO₄ = 0.306 mol
Hence the moles of H₂O formed = 0.306 mol x (6 / 3)
= 0.612 mol
Molar mass of H₂O = 18 g/mol
Mass of H₂O formed = 0.612 mol x 18 g/mol
 = 11.016 g

5 0

3 years ago

Which theory allows physical scientists to quantify or measure things like energy

Natali5045456 [20]

Answer is: quantum theory (mechanics).
Quantum theory is theory in physics which describes nature of energy levels of atoms and subatomic particles. Quantum theory is formulated in different particularly developed mathematical formalisms.
According to this theory energy of a system may be restricted to discrete values (quantization).

6 0

2 years ago