In three to five sentences, explain the effects of acid rain on the environment.

The gas's molar mass is 126 g/mol.

A gas, liquid, or solid's force per unit area exerted on surfaces it is in touch with is known as pressure. It is the amount of force delivered per unit area, to put it another way. The impact of the gas molecules with the container walls causes the pressure of a gas.

The ideal gas law, which links the pressure (P), volume (V), temperature (T), and number of moles (n) of a gas, may be used to get the molar mass of the gas:

PV = nRT

where R is the gas universal constant.

The temperature will first be converted to kelvin (K) as follows:

T = 85 °C + 273.15 = 358.15 K

Let's now convert the pressure into atm:

757 mmHg = 757/760 atm + 0.996 atm

The ideal gas law may now be rearranged to account for the number of moles:

n = PV/RT

n= (0.996 atm)(0.125 L)/(0.0821 Latm/molK)(358.15 K)

n =0.00445 mol

Using the mass (m) and number of moles (n), we can finally determine the molar mass (M) as follows:

M = m/n

M = 0.560 g/0.00445 mol

M = 126 g/mol

As a result, the gas's molar mass is around 126 g/mol.

To know more about pressure, visit:

brainly.com/question/18107358

#SPJ1

The number of moles of the Al2O3 that is produced by the reaction is 2.5 moles.

Stoichiometry is crucial to understanding chemical reactions because it enables us to calculate how many reactants are required to make a particular amount of product

We have the reaction equation as;

4Al + 3O2 → 2Al2O3

Then we can see that Al is the limiting reactant since it is the reactant that has given us the least amount of product. As such we have that;

4 moles of Al produces 2 moles of Al2O3

5 moles of Al will produce 5 * 2/4

= 2.5 moles

Learn more about stoichiometry:https://brainly.com/question/30215297

#SPJ1

Answer:

2.5

Explanation:

Propane ([tex]C_{3}H_{8}[/tex]), butane ([tex]C_{4}H_{10}[/tex]), and pentane ([tex]C_{5}H_{12}[/tex]) are all hydrocarbons and belong to the class of organic compounds called alkanes.

What are alkanes?

Alkanes are a class of organic compounds that consist of carbon and hydrogen atoms connected by single covalent bonds. They are also called saturated hydrocarbons because they contain the maximum number of hydrogen atoms possible for a given number of carbon atoms, meaning they are fully "saturated" with hydrogen atoms. The general formula for alkanes is [tex]C_{n}H_{2n+2}[/tex].

Alkanes are characterized by their physical properties such as being nonpolar, insoluble in water, and having low boiling and melting points. They are commonly found in crude oil and natural gas and are the main components of gasoline and other fuels. In addition to their use as fuels, alkanes are also used in the production of plastics, synthetic fibers, and other materials. Examples of alkanes include methane, ethane, propane, butane, pentane, and hexane.

To know more about alkanes, visit:

https://brainly.com/question/31386716

#SPJ1

Complete question is: Propane ([tex]C_{3}H_{8}[/tex]), butane ([tex]C_{4}H_{10}[/tex]), and pentane ([tex]C_{5}H_{12}[/tex]) are all hydrocarbons and belong to the class of organic compounds called alkanes.

Answer:

Central Atom with Four Pairs of Electrons

To maximize the distance between them, the four pairs of electrons form a shape called tetrahedral.

Answer:

A

Explanation:

Answer:

b

Explanation:

Answer:

1. To understand the differences between natural and synthetic fibers and their properties.

2. To learn about the manufacturing process of synthetic fibers and plastics and the different types of synthetic fibers and plastics available.

3. To explore the various applications of synthetic fibers and plastics in different industries such as fashion, automotive, construction, and electronics.

4. To investigate the environmental impact of synthetic fibers and plastics and the importance of recycling and proper disposal methods.

5. To evaluate the advantages and disadvantages of synthetic fibers and plastics compared to natural materials and their impact on society and the economy.

6. To analyze the future trends and innovations in the field of synthetic fibers and plastics and their potential impact on different industries and the environment.

A chemical change always results in new substances.

Answer:10.71 g

Explanation:

The learner will not be able to determine the correct volume of this piece of wood by determining the volume of water displaced since the wood is not completely submerged in the water.

Only a section of the wood is buried in the water, as depicted in the diagram, leaving a portion of its volume above the waterline. As a result, just the volume of the wood submerged in the water, and not the full volume, is displaced by the water. The student must either fully submerge the wood in the water to determine its volume or use another technique, such as measuring the wood's dimensions and estimating its volume using the formula for the volume of a rectangular solid.

Learn more about Volume, here:

https://brainly.com/question/1578538

#SPJ1

Learn more about

True. The statement "A rate law is an equation that mathematically describes how fast a reaction occurs" is true.

What is Rate of Reation?

The rate of reaction is the speed at which a chemical reaction takes place. It is a measure of how fast the reactants are consumed and the products are formed. The rate of reaction can be determined by measuring the change in concentration of a reactant or product over time. The rate of reaction is affected by several factors, including the concentration of reactants, temperature, pressure, and the presence of a catalyst.

A rate law is an equation that describes the relationship between the rate of a chemical reaction and the concentration of reactants in the reaction. The rate law helps to determine the order of the reaction with respect to each reactant, and it can be used to predict how changing the concentration of reactants will affect the rate of the reaction. The rate law can also help to determine the rate constant, which is a proportionality constant that relates the rate of the reaction to the concentration of reactants.

Learn more about Rate of Reation

https://brainly.com/question/24795637

#SPJ1

Answer:

We can use the formula:

Q = m * c * ΔT

where Q is the heat released, m is the mass of the sample, c is the specific heat capacity, and ΔT is the temperature change.

We are given Q = 455 J, m = 45.0 g, and c = 2.44 J/g*°C.

Substituting these values into the formula, we get:

455 J = 45.0 g * 2.44 J/g*°C * ΔT

Simplifying and solving for ΔT, we get:

ΔT = 455 J / (45.0 g * 2.44 J/g*°C)

ΔT = 455 J / 109.8 J/°C

ΔT = 4.14 °C

Therefore, the temperature change of the ethanol sample will be 4.14 °C.

The term molarity is an important method which is used to calculate the concentration of a solution. It is also known as the term molar concentration. Here molarity is given as 0.500 M.

The concept molarity is defined as the number of moles of the solute present per liter of the solution. It is represented as 'M' and its unit is mol / L. Let us take the volume as 20 L.

Then molarity = Number of moles / Volume in Liters

n = 20 × 0.500 = 10

Molar concentration of 'Ca' = 10 / 20 = 0.5

Molar concentration of 'Cl' = 2 × 0.5 = 1

To know more about molarity, visit;

https://brainly.com/question/16727614

#SPJ1

The Generic reaction is A+2B = C+3D Δ H = 155 . The value of ΔH for this will be 465 kJ.

This is exactly 3 times more, so ΔH of a = 3 ×H = 3 ×155 = 465 kJ

b) this is inverted, simply,  so we must multiply by -1 since it is reversed, so H of b = -155

c) this is inverted and  halved, so, -1 and 1/2 must be applied

H of C = -1 ×(155)/2 = -77.5 kJ

A "same reaction schema," also known as a generic reaction, is a group of reactions that share the same pattern. To accurately and comprehensively represent generic reactions, we have created a hierarchical reaction pattern system.

General chemical reactions can be divided into five categories: combustion, single displacement, double displacement, combination or synthesis, and decomposition

Learn more about Generic reaction:

brainly.com/question/24813003

#SPJ1

Answer:

1. N2: Covalent

2. NO2: Covalent

3. CC14: Covalent

4. CH4: Covalent

5. HF: Covalent

6. H20: Covalent

7. NaCl: Ionic

8. MgCl2: Ionic

9. LiBr: Ionic

10. FeCl3: Ionic

11. Mg3P: Ionic

12. A103: Ionic

The central atom in the Lewis structure is the least electronegative atom. Bromine is the less electronegative atom than Fluorine. So, Bromine will occupy the central position and four Fluorine atom will surround it.

Answer: Metal and stone are considered good conductors since they can speedily transfer heat. Materials like wood, paper, air and cloth are poor conductors of heat.

The extreme pressure that is been produced in the sun by its immense gravity is the one that usually aid the conditions for fusion to start.

Nuclear Fusion reactions can be described as the reaction power  that can be seen to be beneficial to the Sun as well as the available stars.

It should be noted that In a fusion reaction,  there is a coimg together of the light nuclei which do come together so that the single heavier nucleus can be produced and the outcome of the process releases energy  after the process.

Learn more about fusion at:

https://brainly.com/question/2665282?referrer=searchResults

#SPJ1

Answer:

The shape of BrF4– is square planar because the central atom Bromine is sp3d2 hybridized. The central atom Br has four bond pairs and two lone pairs present on it. The electron pair geometry of BrF4– is octahedral.

The average breath volume of an adult is about 500 mL at sea level and about 350 mL on a mountaintop.

At sea level:

Number of moles in one breath = volume of breath in liters/22.4 L/mol

Number of moles in one breath = 0.0005 L / 22.4 L/mol

Number of moles in one breath ≈ 0.00002 mol

Number of gas molecules in one breath = number of moles x Avogadro's number

Number of gas molecules in one breath = 0.00002 mol x 6.02 x 10^23/mol

Number of gas molecules in one breath ≈ 1.2 x 10^19 gas molecules

On a mountaintop:

Number of moles in one breath = volume of breath in liters/22.4 L/mol

Number of moles in one breath = 0.00035 L / 22.4 L/mol

Number of moles in one breath ≈ 0.000016 mol

Number of gas molecules in one breath = number of moles x Avogadro's number

Number of gas molecules in one breath = 0.000016 mol x 6.02 x 10^23/mol

Number of gas molecules in one breath ≈ 9.6 x 10^15 gas molecules

Answer:

C4H2N

Explanation:

The empirical formula is the ratio of atoms in the compound. By dividing each number of moles by the smallest number of moles, we can find the ratio of each atom in relation to that smallest value.

Smallest number of moles is N, so

C: 0.1502/0.0376=4.16=4

H: 0.0751/0.0376=2.08=2

N: 0.0376/0.0376=1

Recall that we have to have integers in the empirical formula, so the ratios are rounded to the nearest whole number. With these ratios, we make the formula:

C4H2N

Balancing equations

Periodic table equations

Balancing equations is an important skill in chemistry that involves making sure that the same number of atoms of each element is present on both sides of a chemical equation.

Here is an example of how to balance a chemical equation:

Let's say we have the following unbalanced equation:

Fe + O2 → Fe2O3

To balance this equation, we need to make sure that the same number of atoms of each element is present on both sides of the equation. We can do this by adjusting the coefficients in front of each molecule:

4Fe + 3O2 → 2Fe2O3

Now the equation is balanced because we have 4 atoms of Fe and 6 atoms of O on both sides of the equation.

The periodic table is a table of elements that is arranged in order of increasing atomic number. Each element is represented by a unique symbol and has a corresponding atomic number and atomic mass.

Chemical equations often involve the use of elements from the periodic table. For example, H2O represents water, which is made up of two hydrogen atoms and one oxygen atom.

When writing or balancing chemical equations, it is important to be familiar with the elements on the periodic table and their properties. This can help you to accurately represent the reactions that are taking place.

Answer:

Water and salt can be separated through the process of distillation or evaporation.

Explanation:

if it helped u please mark me a brainliest :-))

The balanced oxidation-reduction equation for the destruction of cyanate ion waste solution from gold-mining operations by treatment with hypochlorite ion in basic solution is:

OCN⁻(aq) + OCl⁻(aq) + 2OH⁻(aq) → CO₂⁻(aq) + N₂(g) + Cl⁻(aq) + H₂O(l)

In this reaction, the cyanate ion (OCN⁻) is oxidized to carbon dioxide (CO₂⁻) and nitrogen gas (N₂), while the hypochlorite ion (OCl⁻) is reduced to chloride ion (Cl⁻). The reaction takes place in basic solution, which provides the hydroxide ions (OH⁻) needed to neutralize the acidic H⁺ ions produced during the oxidation of the cyanate ion.

The reaction is exothermic, releasing heat energy as the products form. This reaction is an effective way to dispose of the cyanate ion waste generated by gold-mining operations, as it converts the hazardous waste into harmless gases and ions.

To learn more about oxidation-reduction equation, here

https://brainly.com/question/13699873

#SPJ1

The number of mole of helium inflated into the balloon is 0.031 mole

From the question given above, the following data were obtained obtained:

The number of mole of the helium gas inflated into the balloon can be obtained as follow:

PV = nRT

1 × 0.75 = n × 0.0821 × 293

0.75 = n × 24.0553

Divide both sides by 24.0553

n = 0.75 / 24.0553

n = 0.031 mole

Thus, we can conclude that the number of mole of the helium gas inflated into the balloon is 0.031 mole

Learn more about number of mole:

https://brainly.com/question/29927685

#SPJ1

Part 1:  The pH of the solution before any KOH is added is the same as the pH of the HCN solution, which can be calculated using the Ka of HCN and the initial concentration: pH = -log(6.2 x 10-10) = 9.2

Concentration is the ability to focus on a task or activity and to block out any distractions. It involves maintaining mental focus to complete a task, retain information, and make decisions. It is important in many areas of life, from studying for an exam to work-related tasks.

Part 2:  At 50 mL of KOH added, the concentration of HCN is reduced to 0.050 M and the concentration of KOH is 0.050 M. This is a 1:1 ratio, so the pH is equal to the pKa of HCN:
pH = -log(6.2 x 10-10) = 9.2
Part 3:  At 75 mL of KOH added, the concentration of HCN is reduced to 0.025 M and the concentration of KOH is 0.075 M. This is a 3:1 ratio, so the pH can be calculated using the Henderson-Hasselbalch equation:
pH = pKa + log([KOH]/[HCN])
pH = 9.2 + log(3)
pH = 10.2
Part 4: At the equivalence point, the moles of KOH added is equal to the moles of HCN initially present, so the concentration of HCN is 0 and the concentration of KOH is 0.1 M. This means the pH of the solution is equal to the pOH of the solution, which can be calculated using the Ka of HCN and the initial concentration:
pOH = -log(6.2 x 10-10) = 9.2
pH = 14 - pOH
pH = 14 - 9.2 = 4.8
Part 5: At 125 mL of KOH added, the concentration of KOH is 0.125 M and the concentration of HCN is 0. This means the pH of the solution is equal to the pOH of the solution, which can be calculated using the Ka of HCN and the initial concentration:
pOH = -log(6.2 x 10-10) = 9.2
pH = 14 - pOH
pH = 14 - 9.2 = 4.8.

To learn more about concentration
https://brainly.com/question/28564792
#SPJ1

Answer:

Covalent

NO₂, CCl₄, CH₄, HF, H₂O, N₂

Ionic

MgCl₂, NaCl, LiBr, FeCl₃, AlO₃, Mg₃P,

Explanation:

Ionic bonds occurs between a metal and non-metal, while covalent bonds occurs between two non-metals.

Nitrogen and oxygen are non-metals, hence the bonds between nitrogen dioxide are covalent bonds. Thus, NO₂ is a covalent compound.

Same concept applies to carbon tetrachloride (CCl₄), methane (CH₄), hydrogen fluoride (HF), water (H₂O) and nitrogen (N₂).

The remaining compounds are ionic compunds. Let's take magnesium chloride (MgCl₂) as an example. Magnesium is a metal, while chlorine is a non-metal. Thus, the bonds formed between these atoms are ionic bonds.

Look at the position of the elements in the periodic table to identify which are metals or non-metals.

Answer: A

Explanation:

As O is more electronegative than H so O is partially negative while H is partially positive

Answer:

Word equation: Tin + Hydrogen fluoride → Tin (II) fluoride + Hydrogen gas

Skeleton equation: Sn + 2HF → SnF2 + H2