Ice is lighter and floats in water because it is a crystalline structure in which each water molecule is bonded to a maximum of

[H3O+][OH-] = 4.5 x 10^-15
[H3O+] = [OH-] = 6.7 x 10^-8 M

Explanation: perform the calculation

The four corresponding figures and calculations are as follows

Explanation:

[HCL] initial = (10.00ml) (0.02140M) = 0.2140mmol

NaOH = (3.26ml) (0.0198M) = 0.0645mmol

The amount of NH3 generated in HCl will be the difference of 0.2140mmol minus 0.0645mmol = 0.1495mmol

Since 1 mol of N in protein yields 1 mol of NH3, there are 0.1495mmol of N

Molar mass of N = 14.0067mg per mol

(0.1495mmol) (14.0067mg/mL) = 2.094mg N

Given that the protein contains 16.2% N = 2.094mg N / 0.162 mg N = 12.93mg protein

12.95mg protein per 0.500L = 25.85mg protein per liter

Respuesta:

por favor, revisa la imagen y la explicación:

Explicación:

Todo este proceso se conoce como oximercuración y demercuración.

El primer paso es la mercuración y el siguiente paso es la demercuración.

Se trata de una reacción de adición electrofílica y generalmente se utiliza agua como disolvente, pero aquí se proporciona metanol, así que en lugar de que el agua ataque, será el metanol quien lo haga.

En esta reacción, el alceno reacciona primero con acetato de mercurio (AcO–Hg–OAc)

y forma un anillo con el alceno, ya que el electrón pi del alceno se comparte con el acetato de mercurio y no se forma carbocation, por lo tanto no habrá lugar para reestructuraciones.

Ions are atoms of elements that become stable by either losing or gaining electrons to reach a more stable state. When an atom gains electrons, it becomes a negatively charged ion called an anion, whereas losing electrons results in a positively charged ion known as a cation. Here, a +1 charge signifies the atom has lost a single electron to achieve stability. Consequently, option A is the correct choice.

Answer: The gas in the tire, when the pressure increases to 87.3 kPa, will have a temperature of

Explanation:

To determine the final temperature, we apply the equation derived from Gay Lussac's Law. This principle indicates that the pressure of a confined gas at constant volume is directly linked to its temperature.

In a formula:

where,

are the starting pressure and temperature of the gas.

indicate the final pressure and temperature of the gas.

Provided data:

Inserting values into the equation, we obtain:

Therefore, if the tire pressure rises to 87.3 kPa, the gas temperature will be