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3 years ago

An increase in enzyme or substrate concentration will

Chemistry

1 answer:

lapo4ka [179]3 years ago

5 0

Answer: It will increase the rate of reaction

Explanation:

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The maximum allowable concentration of pb2+ ions in drinking water is 0.05 ppm (i.e., 0.05 g of pb2+ in 1 million grams of water

trasher [3.6K]

PbSO₄ partially dissociates in water. the balanced equation is;

PbSO₄(s) ⇄ Pb²⁺(aq) + SO₄²⁻(aq)
Initial - -
Change -X +X +X
Equilibrium X X

Ksp = [Pb²⁺(aq)] [SO₄²⁻(aq)]
1.6 x 10⁻⁸ = X * X
1.6 x 10⁻⁸ = X²
X = 1.3 x 10⁻⁴ M

Hence the Pb²⁺ concentration in underground water is 1.3 x 10⁻⁴ M.
[Pb²⁺] = 1.3 x 10⁻⁴ M.
= 1.3 x 10⁻⁴ mol / L x 207 g / mol
= 26.91 ppm

8 0

3 years ago

Hg-178 undergoes 2 alpha decay and positron emission. Determine the new isotope.

Illusion [34]

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4 0

3 years ago

How many calories are absorbed in a process that absorbs 0.128 joules?

Y_Kistochka [10]

The answer is A :) your welcome hope this helps

3 0

3 years ago

What is the molarity of a solution of sulfuric acid if 49.0 mL of it are neutralized by a titration

vaieri [72.5K]

Answer:

THE MOLARITY OF THE ACID IS 0.232M

Explanation:

Molarity is the number of moles of solute per liter of a solution.

In titration, the molarity of the acid and the molarity of the base are related by this equation:

Ca VA / CbVb = na / nb

Ca = concentration of the acid = ?

Va = volume of the acid = 49 mL

Cb = concentration of the base = 0.333M

Vb = volume of the base = 68.4mL

Na = number of mole of acid = 1

Nb = number of mole of base = 2

Equation for the reaction:

H2SO4 + 2NaOH --------> Na2SO4 + 2H2O

Solving for the molarity of the acid, we have :

Ca = CbVbNa / VaNb

Ca = 0.333M * 68.4mL * 1 / 49mL *2

Ca = 22.7772 * 10^-3 / 98 *10^-3

Ca = 0.232M

The molarity of the acid is therefore 0.232M.

8 0

3 years ago

Read 2 more answers

Antibiotics are a type of medicine that kills bacteria. Antibiotics can be used to fight bacterial infections. Which of the foll

AysviL [449]

Answer:

Antibiotics are strong medicines that treat bacterial infections. Antibiotics won't treat viral infections because they can't kill viruses. You'll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia.

Explanation:

antibiotics can treat bacterial infections, such as:

Most sinus infections.

Strep throat.

Urinary tract infections.

Pneumonia.

Most ear infections (otitis media)

Nasty bacterial skin infections (impetigo)

plz mark brainliest

7 0

3 years ago