An organic compound, which has the empirical formula C4H9 has an approximate molar mass of 114 g/mol. What is its probable molecular formula

Ultraviolet and infrared rays are harmful rays emitted during arc welding.

During arc welding, an intense electric arc is generated, producing various types of radiation. Ultraviolet (UV) rays are one form of harmful radiation emitted during the welding process. UV rays have a shorter wavelength than visible light and can cause damage to the skin and eyes, leading to sunburn, skin aging, and even long-term health risks such as skin cancer.

In addition to UV rays, infrared (IR) rays are also emitted during arc welding. IR rays have longer wavelengths than visible light and can generate heat. Prolonged exposure to IR rays can cause thermal burns and skin damage.

To protect against the harmful effects of UV and IR radiation during arc welding, welders typically use personal protective equipment (PPE) such as welding helmets with shaded lenses or filters. These lenses are designed to block or reduce the transmission of harmful UV and IR rays while allowing safe levels of visible light to pass through, ensuring the welder's safety.

Learn more about Ultraviolet and infrared rays from the link given below.

https://brainly.com/question/3628208

#SPJ4

Answer:

Neutrons and Protons, Electrons

Explanation:

Neutrons and protons are in the inside as electrons orbit around it in a circular pattern

The oxidation of a) 1-hexanol b) 2-hexano c) hexanal with CrO3 in aqueous acid gives 1-hexanoic acid, 2-hexanone and 1-hexanoic acid respectively. The oxidation with PCC gives 1-hexanaldehyde, 2-hexanone and no reaction respectively.

What is PCC?

PCC is also called as pyridinium chlorochromate which is a yellow-orange salt. this is primarily used for the oxidation of alcohols which gives carbonyl compounds as products. It is one of the highly effective oxidizing agents for alcohols.

The oxidation of alcohols with CrO3 gives carbonyl compounds like aldehydes and ketones. With primary alcohol and aldehydes it gives carboxylic acid, whereas with secondary alcohol it gives ketones as products. PCC with primary alcohols give aldehyde, with secondary alcohols give ketone and with aldehyde there is no reaction.

Therefore, CrO3 with 1-hexanol and hexanal gives 1-hexanoic acid, with 2-hexanol gives 2-hexanone. PCC with 1-hexanol gives 1-hexanaldehyde, 2-hexanol gives 2-hexanone and with hexanal there is no reaction.

To learn more about PCC click on the given link https://brainly.com/question/28385165

#SPJ4

Answer: Summer days in Texas are likely to be hotter than winter days because in summer. Mid-July to early August. When do maximum surface temperatures usually occur in the Northern Hemisphere

Explanation: I hope that helps!!

Answer:

double displacement reaction also neutralization reaction cause of acid and base

Answer:

Double Replacement Reaction

Explanation:

KOH + H₃PO₄ --> K₃PO₄ + H₂O

AB + CD --> AD + BC

K goes with PO4 and H goes with OH

The value of Kp for the given equilibrium reaction at 300.0 K is 4.99.

The equilibrium constant, Kp, is a numerical representation of the ratio of product concentrations to reactant concentrations at equilibrium for a particular reaction. In this case, we have the equilibrium reaction NH4HS (s) ⇌ NH3 (g) + H2S (g) at 300.0 K.

The given values for pNH3 and pH2S are both 0.109 atm. The equilibrium constant, Kp, is calculated by dividing the partial pressure of the products raised to their stoichiometric coefficients by the partial pressure of the reactant raised to its stoichiometric coefficient.

By substituting the given values into the equation, we find that Kp = 4.99.

Learn more about equilibrium

brainly.com/question/30694482

#SPJ11

Answer:

C. Between 0 and 1 seconds

Explanation:

Since 0 - 1 seconds the car accelerates to 20mph. The rest each second the car accelerates 5mph.

Answer:

c

Explanation:

a p e x!

The digital signal is a signal that encodes data as a series of discrete values; at any one moment, it can only take on a maximum of one of a finite set of values.

A digital signal, in contrast, represents continuous values; it always reflects a real number within a continuous range of values. Information is represented by simple digital signals in discrete analogue level bands. The same information state is represented by all levels in a band of values. The signal in the majority of digital circuits can have two legitimate possible values; this is known as a binary signal or logic signal.

Learn more about Digital Signal here

https://brainly.com/question/14825566

#SPJ4

An inert electrode must be used when one or more species involved in the redox reaction are easily oxidized or easily reduced.

An inert electrode, such as platinum or graphite, does not participate in the redox reaction itself. It serves as a conductor of electricity, allowing the flow of electrons between the reaction taking place in the solution and the external circuit.

When a species involved in the redox reaction is easily oxidized, it tends to lose electrons and undergo oxidation at the anode. In this case, an inert electrode is used at the anode to facilitate the transfer of electrons.

Similarly, when a species involved in the redox reaction is easily reduced, it tends to gain electrons and undergo reduction at the cathode. An inert electrode is used at the cathode to facilitate the transfer of electrons.

Therefore, the correct answer is: easily oxidized or easily reduced.

To know more about electrode refer here

brainly.com/question/29667844#

#SPJ11

After 30 minutes of being in vinegar, the penny will be covered in a thin layer of copper oxide.

TO learn more about having a penny in vinegar refer to:

https://brainly.com/question/20223584

#SPJ1

Thus, the metal has a mhm specific heat capacity of 2.472 Joel program degrees Celsius.

To calculate the temperature change (T), subtract the end temperature from the initial temperature. Multiply the temperature change by the sample's mass. Share the product's energy and heat output. The equation is C = Q / (T m). The amount of heat energy per unit mass needed to raise the temperature by one degree Celsius is known as the specific heat. The form given below, where c is the specific heat, is typically used to express the relationship between heat and temperature change. Let S represent the water's specific heat capacity. Consequently, the combined temperature of 50g of water at 20°C and 50g of water.

Learn more about temperature here-

https://brainly.com/question/5421090

#SPJ4

Structure and the reaction is in the attached photo.

Amides, RCONR'2, can be reduced to the amine, RCH2NR'2 by conversion of the C=O to -CH2-. Amides can be reduced by LiAlH4 but not the with the less reactive NaBH4. Some of the reagents are LiAlH4  / ether solvent, followed by water.

This reduction reaction is different from the different to that of other C=O compounds which reduce to alcohols like in esters.

Lithium aluminium hydride (LiAlH4) and sodium borohydride are the two most frequent sources of the hydride nucleophile (NaBH4).

The presence of a polar metal-hydrogen bond in these reagents acts as a source of hydride rather than the hydride anion, which is absent during this reaction. Since the Al-H bond in LiAlH4 is more polar and aluminium is less electronegative than boron, LiAlH4 is a more potent reducer.

To know more about Lithium aluminium hydride here

https://brainly.com/question/17126469

#SPJ4

Answer:

wwwwwwwwww

Explanation:

The solution contains 0.164 grams of NaCl in 425 mL of solution with a pH of 12.10.

To determine the amount of NaCl in a solution with the same pH as a sodium cyanide solution (pH 12.10), we first need to find the concentration of hydroxide ions (OH⁻) using the formula:

pOH = 14 - pH

pOH = 14 - 12.10 = 1.9

Next, calculate the concentration of OH⁻ ions using:

OH⁻ concentration = 10^(-pOH) =  1.26 x 10⁻² mol/L

Since the ratio of NaOH to NaCl is 1:1, the concentration of NaCl will also be 1.26 x 10⁻² mol/L. To find the amount of NaCl in grams, use the formula:

Amount of NaCl (g) = Volume (L) x Concentration (mol/L) x Molar mass (g/mol)

Amount of NaCl (g) = 0.425 L x 1.26 x 10⁻² mol/L x 58.44 g/mol ≈ 0.164 grams

To know more about pH click on below link:

https://brainly.com/question/29766400#

#SPJ11

The number of moles of O2 remaining after the first reaction is:

n(O2) excess = n(O2) initial - n(O2) reacted = 0.1803 mol - 0.0349 mol = 0.1454

The balanced chemical equation for the first reaction, the formation of phosphorus(III) oxide, is:

4 P + 3 O2 → 2 P4O6

The balanced chemical equation for the second reaction, the formation of phosphorus(V) oxide, is:

P4O6 + 3 O2 → 2 P4O10

(a) To determine the limiting reactant, we need to calculate the amount of product that can be formed from each reactant, assuming that the other reactant is present in excess.

For white phosphorus (P4), the molar mass is 124 g/mol, and the number of moles present is:

n(P4) = m / M = 5.77 g / 124 g/mol = 0.0466 mol

From the balanced chemical equation, 4 moles of P4 react with 3 moles of O2 to produce 2 moles of P4O6. Therefore, the number of moles of P4O6 that can be formed is:

n(P4O6) = 0.0466 mol P4 × (2 mol P4O6 / 4 mol P4) = 0.0233 mol P4O6

For oxygen (O2), the molar mass is 32 g/mol, and the number of moles present is:

n(O2) = m / M = 5.77 g / 32 g/mol = 0.1803 mol

From the balanced chemical equation, 4 moles of P4 react with 3 moles of O2 to produce 2 moles of P4O6. Therefore, the number of moles of P4O6 that can be formed is:

n(P4O6) = 0.1803 mol O2 × (2 mol P4O6 / 3 mol O2) = 0.1202 mol P4O6

The limiting reactant is the reactant that produces the smaller amount of product, which in this case is white phosphorus (P4). Therefore, P4 is the limiting reactant.

(b) Since 4 moles of P4 react with 3 moles of O2 to produce 2 moles of P4O6, and the number of moles of P4O6 produced is 0.0233 mol, the number of moles of O2 that react is:

n(O2) = 0.0233 mol P4O6 × (3 mol O2 / 4 mol P4) = 0.0175 mol O2

The mass of P4O10 produced can be calculated using the number of moles of P4O6 that react in the second reaction, which is 0.0233 mol. Since the molar mass of P4O10 is 284 g/mol, the mass of P4O10 produced is:

m(P4O10) = n(P4O10) × M(P4O10) = 0.0233 mol × 284 g/mol = 6.61 g

Therefore, 6.61 g of P4O10 is produced.

(c) The number of moles of O2 that react in the first reaction is:

n(O2) = 0.0466 mol P4 × (3 mol O2 / 4 mol P4) = 0.0349 mol O2

The number of moles of O2 remaining after the first reaction is:

n(O2) excess = n(O2) initial - n(O2) reacted = 0.1803 mol - 0.0349 mol = 0.1454

Learn more about molar mass here https://brainly.com/question/13152455

#SPJ4

Answer:

exo means energy is released when delta h is + it is endo and when energy is on the reactants side that is energy introduced so endo as well so when energy shows up on the product side that is the exo one

so it is C as that E is listed as a product therefore released

Explanation:

Answer:

Molecule

Explanation:

molecule of the substance.  You can break the molecule down further, into the atoms that make it up, but those don't have the properties of the original  'compound'.

Here's an example:

-- Sodium is a soft, slippery metal, that explodes when water touches it.

-- Chlorine is a poisonous green gas.

When an atom of Sodium and an atom of Chlorine combine, they make one molecule of a substance called "Sodium Chloride".  That's SALT !  It isn't green, it isn't a gas, it isn't poisonous, it isn't soft and slippery, and it doesn't explode when water touches it.

Relative and average atomic mass both describe properties of an element related to its different isotopes. Out of these two Relative atomic mas is more accurate. The average atomic mass is 303g.

Mass defines the quantity of a substance. It is measured in gram or kilogram. Average mass is the mass of atoms of an element that are isotopes. It can be calculated by multiplying mass of a isotope to natural abundance of that isotope.

Average atomic mass = (mass of first isotope× percent abundance of first isotope)+(mass of second isotope× percent abundance of second isotope)

Substituting the given values

Average atomic mass=( 302 ×  12.64 %)+(304 × 18.23 %) + (306 × 69.13% )

Average atomic mass=303g

Therefore, the average atomic mass is 303g.

To learn more about mass, here:

https://brainly.com/question/28704035

#SPJ1

The name for the compound with the formula NH4NO2 is ammonium nitrite.

This is an inorganic compound that is made up of ammonium cation (NH4+) and nitrite anion (NO2-). It is a white crystalline solid that is highly soluble in water and decomposes at temperatures above 60°C. Ammonium nitrite is used in various industrial processes, including in the production of dyes, pharmaceuticals, and explosives. It is also used as a reagent in organic chemistry reactions. While ammonium nitrite is not considered as a highly dangerous compound, it can decompose into toxic nitrogen oxides when heated, so appropriate safety precautions must be taken when handling it.Ammonium nitrite (NH4NO2) is a colorless, crystalline solid compound that is soluble in water. It is an unstable compound that is used in the production of nitrogen gas and as a reagent in organic chemistry. When heated, ammonium nitrite decomposes into nitrogen gas and water, making it a potential source of nitrogen gas for various industrial and chemical processes. However, ammonium nitrite is a hazardous and unstable compound that can undergo explosive decomposition when subjected to heat, shock, or friction, making it dangerous to handle and store. As a result, it is heavily regulated and restricted for use in many countries.

Learn more about ammonium nitrite here:

https://brainly.com/question/1111916

#SPJ4

First, we calculate the moles of each element taking the percentages as a mass:

We divided the number of moles by the smaller number of moles. In this case, C is the smallest:

These numbers give us the empirical formula wich is: CH2

The mass of 4.50 x 10²² formula units of CoSO₄ will be 11.57 g

The formula unit is the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.

As 1 mole (i.e, 6.023 x 10²³ molecules) of CoSO₄ weighs 154.99 g

Therefore,

4.50 x 10²² formula units (Molecules) of CoSO₄ weighs

154.99 / 6.023 x 10²³  x  4.50 x 10²²  = 11.57 g CoSO₄

Hence, The mass of 4.50 x 10²² formula units of CoSO₄ will be 11.57 g

Learn more about formula unit mass here ;

https://brainly.com/question/2562799

#SPJ1

697.455 x \(10^{22}\) g/mol is the mass of 4.50 x \(10^{22}\) formula units of \(COSO_4\).

A formula unit is the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.

To find the mass of 4.50 x 1022 formula units of \(COSO_4\), we need to multiply 4.50 x 1022 with molar mass.

4.50 x \(10^{22}\) x 154.99 g/mol

697.455 x \(10^{22}\) g/mol

Hence, 697.455 x \(10^{22}\) g/mol is the mass of 4.50 x \(10^{22}\) formula units of \(COSO_4\)

Learn more about  formula unit here:

https://brainly.com/question/21494857

#SPJ1

The CEC for this soil sample is 675.2 cmol(+)/kg.

The % Base Saturation for this soil sample is approximately 136.62%.

The % Acid Saturation for this soil sample is approximately 60.55%.

To    calculate the CEC, % Base Saturation (B.S.), and % Acid Saturation for the given soil sample:

a. Calculation of CEC (Cation Exchange Capacity):

CEC is the sum of exchangeable cations in the soil. From the given results, we have:

CEC = Ca2+ + Mg2+ + K+ + Al3+

CEC = (100 mg/L + 45 mg/L + 85.5 mg/L + 94.2 mg/L) / (25 g / 1000)

CEC = 168.7 mg / (25 g / 1000)

CEC = 675.2 cmol(+)/kg

b. Calculation of % Base Saturation (B.S.):

% B.S. represents the percentage of CEC occupied by base cations. In this case, we consider Ca2+, Mg2+, and K+ as base cations. The formula to calculate % B.S. is:

% B.S. = (Ca2+ + Mg2+ + K+) / CEC * 100

% B.S. = (100 mg/L + 45 mg/L + 85.5 mg/L) / (168.7 cmol(+)/kg) * 100

% B.S. = 230.5 mg / (168.7 cmol(+)/kg) * 100

% B.S. = 136.62%

c. Calculation of % Acid Saturation:

% Acid Saturation represents the percentage of CEC occupied by acid cations, in this case, H+ and Al3+. The formula to calculate % Acid Saturation is:

% Acid Saturation = (H+ + Al3+) / CEC * 100

% Acid Saturation = (8.0 mg/L + 94.2 mg/L) / (168.7 cmol(+)/kg) * 100

% Acid Saturation = 102.2 mg / (168.7 cmol(+)/kg) * 100

% Acid Saturation = 60.55%

Please note that the given values were in milligrams per liter (mg/L), and the CEC and % Saturation values were calculated assuming a conversion from mg/L to cmol(+)/kg using the mass of the soil sample (25 g).

TO know more about CEC (Cation Exchange Capacity)

https://brainly.com/question/30689981

#SPJ11

Answer:

Explanation:

14 protons

17 neutrons

18 electrons

Mass number = ?

Mass number = protons + neutrons.

\(Mass\:number = 14+17\\\\Mass \:number = 31\)

Atomic number = ?

The number of protons = atomic number.

Atomic number = 14

Charge = ?

The charge of an element = number of protons minus the number of electrons.

\(Charge=14 -18\\\\Charge = -4\)

Answer:3604.5J

Explanation:

Answer: 19.4 mL Ba(OH)2

Explanation:

H2(g) + Cl2(g) --> 2HCl(aq) (make sure this equation is balanced first)

At STP, 1 mol gas = 22.4 L gas. Use this conversion factor to convert the 100. mL of Cl2 to moles.

0.100 L Cl2 • (1 mol / 22.4 L) = 0.00446 mol Cl2

Use the mole ratio of 2 mol HCl for every 1 mol Cl2 to find moles of HCl produced.

0.00446 mol Cl2 • (2 mol HCl / 1 mol Cl2) = 0.00892 mol HCl

HCl is a strong acid and Ba(OH)2 is a strong base so both will completely ionize to release H+ and OH- respectively. You need 0.00892 mol OH- to neutralize all of the HCl. Note that one mole of Ba(OH)2 contains 2 moles of OH-.

0.00892 mol OH- • (1 mol Ba(OH)2 / 2 mol OH-) • (1 L Ba(OH)2 / 0.230 M Ba(OH)2) = 0.0194 L = 19.4 mL Ba(OH)2

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\\)

From the question we have

\(volume = \frac{112}{13.6} \\ = 8.23529\)

We have the final answer as

Hope this helps you

Answer:

Chemical Property Examples

For example: Flammability - How easily something will burn or ignite, is a chemical property because you can't tell just by looking at something how easily it will burn. Fire testing is done to determine how difficult or easy it will be to get a certain material to burn.

Explanation:

Answer:

Because Environmental Risks

Explanation:

Medicines poured down the drain can enter the environment and your community’s drinking water supplies. And it can cause a lot of diseases!