Urgent: Suppose that 14.9 mL of HNO3 is neutralized by 53.1 mL of a 0.0048 M solution of KOH in a titration. Calculate the concentration of the HNO3 solution.

Answer:

10^-7.20 or 1×10^-7.20mol.dm^-3

Explanation:

[H3O^+]= -log[H3O^+]

=antilog(-pH)

=antilog(-7.20)

=10^-7.20 mol.dm^-3

Answer:

1.58 x 10^-7 M

Explanation:

The monomers combine with each other via covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts.

Answer:

For a: The frequency produced by loudspeaker A is 200 Hz

For b: Loudspeaker B produces a higher frequency of vibrations.

Explanation:

To calculate the frequency of a loudspeaker, we use the formula:

[tex]\nu=\frac{\text{Number of vibrations}}{\text{Time period}}[/tex]          ......(1)

where,

[tex]\nu[/tex] = frequency

Number of vibrations = 200

Time period =  1 second

Putting values in equation 1:

[tex]\nu_A=\frac{200}{1s}=200Hz[/tex]

Number of vibrations = 400

Time period =  1 second

Putting values in equation 1:

[tex]\nu_B=\frac{400}{1s}=400Hz[/tex]

Hence, the frequency produced by loudspeaker A is 200 Hz and loudspeaker B produces a higher frequency of vibrations.

Answer:

to get a job and why does she not have money

Explanation:

Have a nice day :)

Explanation:

The gas planets are Jupiter, Saturn, Uranus and Neptune.

Answer:

Explanation:

Answer:

308.2 g of NH₃.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

3H₂ + N₂ —> 2NH₃

Next, we shall determine the mass of N₂ that reacted and the mass of NH₃ produced from the balanced equation. This can be obtained as follow:

Molar mass of N₂ = 2 × 14 = 28 g/mol

Mass of N₂ from the balanced equation = 1 × 28 = 28 g

Molar mass of NH₃ = 14 + (3×1)

= 14 + 3 = 17 g/mol

Mass of NH₃ from the balanced equation = 2 × 17 = 34 g

Summary:

From the balanced equation above,

28 g of N₂ reacted to produce 34 g of NH₃.

Finally, we shall determine the mass of NH₃ produced by the reaction of 253.8 g of N₂. This can be obtained as illustrated below:

From the balanced equation above,

28 g of N₂ reacted to produce 34 g of NH₃.

Therefore, 253.8 g of N₂ will react to produce = (253.8 × 34)/28 = 308.2 g of NH₃.

Thus, 308.2 g of NH₃ were obtained from the reaction.

Answer:

24.68%

Explanation:

Molar mass of phosphorous / molar mass of P3Cl8

= 3 x 30.97 / (3 x 30.97) + (8 x 35.45)

= 92.91/376.51 x 100

= 24.676%

=24.68% (2dp)

Answer:

170.362 L

General Formulas and Concepts:

Atomic Structure

Gas Laws

Stoichiometry

Explanation:

Step 1: Define

Identify variables

[Given] 106.476 g N

[Solve] L N

Step 2: Identify Conversions

[STP] 1 mol = 22.4 L

[PT] Molar Mass of N: 14.01 g/mol

Step 3: Convert

Answer:

Computer hard drives use magnetism to store the data on a rotating disk. More complex applications include: televisions, radios, microwave ovens, telephone systems, and computers. An industrial application of magnetic force is an electromagnetic crane that is used for lifting metal objects.

Explanation:

Computer hard drives use magnetism to store the data on a rotating disk. More complex applications include: televisions, radios, microwave ovens, telephone systems, and computers. An industrial application of magnetic force is an electromagnetic crane that is used for lifting metal objects.

Answer:

here, i think this helps

https://www.crestwoodschools.org/userfiles/867/Classes/9260/Moles%20Worksheet.pdf

Answer:

1. [tex]V_2=2.5L[/tex]

2. [tex]V_2=8000mL[/tex]

3. [tex]V_2=176.3L[/tex]

Explanation:

¡Hola!

En este caso, dada la información para estos problemas, procedemos de la siguiente manera, basado en las leyes de los gases ideales:

1. Una masa de aire ocupa un volumen de 5 litros a una temperatura de 120 °C Cual será el nuevo volumen si la temperatura se reduce a la mitad:

Aqui, utilizamos la ley de Charles, asegurándonos que la temperatura está en Kelvin:

[tex]\frac{T_2}{V_2} =\frac{T_1}{V_1} \\\\V_2 =\frac{V_1T_2}{T_1} \\\\V_2 =\frac{5L*196.5K}{393K} \\\\V_2=2.5L[/tex]

2. Un gas ideal ocupa un volumen de 4000 ml a una presión absoluta de 1500 kilo pascal Cual será la presión si el gas es comprimido lentamente hasta 750 kilo pascal a temperatura constante?

Aquí, utilizamos la ley de Boyle, dado que la temperatura se mantiene constante, calculando el volumen, ya que lo que se da es la presión final:

[tex]\neq P_2V_2=P_1V_1\\\\V_2=\frac{P_1V_1}{P_2}\\\\ V_2=\frac{4000mL*1500kPa}{750kPa}\\\\V_2=8000mL[/tex]

3. Un gas ocupa un volumen de 200 litros a 95°C y 782 mmHg Cual será el volumen ocupado por dicho gas a 65°C y 815 mmHg:

Aquí, utilizamos la ley combinada de los gases ideales, asegurándonos que las temperaturas están en Kelvin:

[tex]\frac{T_2}{P_2V_2} =\frac{T_1}{P_1V_1} \\\\V_2 =\frac{P_1V_1T_2}{P_2T_1} \\\\V_2 =\frac{782mmHg*200L*338K}{815mmHg*368K}\\\\V_2=176.3L[/tex]

¡Saludos!

Answer:d

Explanation:

obv

Answer:

V=0.3×22.4=6.72 liters hope this helps

Answer: The chemical symbol of the compound formed is [tex]XCl[/tex] or [tex]NaCl[/tex]

Explanation:

An ionic compound is formed when the complete transfer of electrons takes place from one element (usually metals) to another element (usually non-metals).

The element losing electron (metal) forms a positive ion known as a cation while the element gaining electron (non-metal) forms a negative ion known as an anion.

Element X has the atomic number 11 which is sodium. The electronic configuration of it is [tex]1s^22s^22p^63s^1[/tex]

This element will lose 1 electron to form [tex]X^+[/tex] ion of [tex]Na^+[/tex]

Chlorine has the atomic number 17. The electronic configuration of it is [tex]1s^22s^22p^63s^23p^5[/tex]

This element will gain 1 electron to form [tex]Cl^-[/tex] ion

When these two ions combine, they lead to the formation of an ionic compound having a chemical formula of [tex]XCl[/tex] or [tex]NaCl[/tex]

Hence, the chemical symbol of the compound formed is [tex]XCl[/tex] or [tex]NaCl[/tex]

Explanation:

An ecosystem includes the environment, living and non-living things and how they interact with each other.

For example, in a Reef ecosystem there

are marine plants and animals that depend on each other and their surrounding to survive.

Answer:

A

Explanation:

because they are non polar so would not conduct electricity :)

The type of bonding does the compound have non polar covalent.

A non-polar covalent bond is just a sort of chemical bond that occurs when two atoms share electrons evenly. As a result, the count of electrons shared by neighboring atoms in an atom would be identical.

A compound would be a material made up of two or maybe more chemical elements that have been chemically bonded together.

They still wouldn't conduct electricity even though they can non-polar.

Therefore, the correct answer will be option (A).

To know more about compound and non-polar compound.

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Answer:

38.152 g NaCl would be produced.

Explanation:

[tex] \frac{(23 + 35.5) \times 15}{23} \\ = 38.152 \: \: g[/tex]

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Answer:

38.152 g NaCl would be produced.

Explanation:

\begin{gathered} \frac{(23 + 35.5) \times 15}{23} \\ = 38.152 \: \: g\end{gathered}

23

(23+35.5)×15

hope it is helpful to you

=38.152g

Answer:

1 atom of zirconium

Explanation:

Zirconium sulfide or zirconium disulphide can be written as ZrS2.

Answer:

2NH4^+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l)

Explanation:

Molecular balanced reaction equation;

2NH4Cl (aq) + Mg(OH)2---->2NH3 (g) + 2H2O (l) + MgCl2 (aq)

Complete ionic reaction equation;

2NH4^+(aq) + 2Cl^-(aq) + Mg^2+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l) + Mg^2+(aq) + 2Cl^-(aq)

Net Ionic reaction equation;

2NH4^+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l)

Answer:

C. If 67 grams of ammonium perchlorate were to react with 10 grams of aluminum:

Explanation:

67 grams of ammonium because H2O(g) + AlCl3(g)

Answer:

The pOH of the solution is 11.23.

Explanation:

To solve this problem, we must remember the following formula for pH: pH = -log[H+].

If we plug in the value we are given, we can find the pH.

pH = -log[H+]

pH = -log(1.7*10^-3)

pH = 2.77

To find the pOH, we use the following formula:

pH + pOH = 14

To solve, we should plug in the value we found above for pH and solve for the pOH.

2.77 + pOH = 14

pOH = 11.23

Therefore, the correct answer is 11.23.

Hope this helps!

Answer:

The conversion of substance A to substance B will happen extremely slowly because of the very high activation energy that each molecule must obtain to convert.

Explanation:

Plato answer

The conversion of substance A to substance B will happen extremely slowly.

A molecule is two or more atoms connected by chemical bonds, which form the smallest unit of a substance that retains the composition and properties of that substance.

The conversion of substance A to substance B will happen extremely slowly because of the very high activation energy that each molecule must obtain to convert.

Learn more about the molecules here:

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Answer:

The combination of the polymer opening up and the water molecules sticking to it make a solution of the hydrogel get thicker and more viscous (sticky). Disposable nappies make use of the ability of hydrogels to take up and retain water, even under pressure.

Explanation:

Answer: There are 6 carbon atoms on the product side.

Explanation:

The given reaction equation is as follows.

[tex]6CO_{2} + 6H_{2}O \rightarrow C_{6}H_{12}O_{6} + 6O_{2}[/tex]

Species present on the left side of an arrow in a chemical equation depicts the reactants.

Species present on the right side of an arrow in a chemical equation depicts the products.

Hence, products in the given reaction equation are [tex]C_{6}H_{12}O_{6}[/tex] and [tex]6O_{2}[/tex].

Therefore, there are 6 carbon atoms present on the product side.

Thus, we can conclude that there are 6 carbon atoms on the product side.