Dolan manufacturing company's accounting records reflect the following inventories: dec. 31, 2011 dec. 31, 2010 raw materials inventory $310,000 $260,000 work in process inventory 300,000 160,000 finished goods inventory 190,000 150,000 during 2011, $400,000 of raw materials were purchased, direct labor costs amounted to $500,000, and manufacturing overhead incurred was $480,000. if dolan manufacturing company's cost of goods manufactured for 2011 amounted to $1,190,000, its cost of goods sold for the year is group of answer choices $1,150,000. $1,050,000. $1,230,000. $1,300,000.

Answer:

it is becuse the students used wrong apparatus

The biggest error in this investigation is the use of inappropriate types of equipment.

The types of equipment used in the given setup are inappropriate. Suggested improvements in the apparatus to increase the accuracy are given below:

1. The use of a polystyrene cup in the laboratory for any reaction is inappropriate. As a slight increase in temperature causes the decomposition of the chemicals in the cup as well.

2. The use of a thermometer stand is a must. Without using the stand, the tip of the thermometer touches the lid of the container, which causes inaccuracies in the result.

Hence, all the suggestions are listed above.

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Answer:

The chemical reaction involving the reduction of ZnO by CO is not feasible thermodynamically: This is because the standard free energy of formation ( ) of CO2 from CO is higher than that of the formation of ZnO from Zn. Thus, CO cannot be used to reduce ZnO to Zn.

The type of mechanical weathering that is most likely represented below is A) Frost wedging, B) root wedging, C) salt weathering, and D) heat expansion. The correct option is D.

Mechanical weathering is a rock that can be broken apart mechanically by processes like ice solidifying in fractures in the rock, and tree roots sprouting in those same crevices.  

Rock expanding and contracting in locations with high daytime temperatures and low overnight temperatures, rock cracking during forest fires, and so on. Salt weathering is a different kind of mechanical weathering. It functions similarly to how freeze-thaw weathering does. When sea salt spray enters a rock fissure, salt weathering occurs.

Therefore, the correct option is D. A) Frost wedging, B) root wedging, C) salt weathering, and D) heat expansion.

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A.the force between two non polar molecules are stronger than the force between positive ions and freely moving electrons

Answer:

B

Explanation:

Graphs are tools that help in performing calculations as they reduce the source of errors which is done in long mathematical calculations.

Errors in chemical analysis result when there is a difference between observed value and the true value.If the magnitude of errors is large , it results in decrease in accuracy, reproducibility, and precision.

There are three types of errors:1) random error 2) systematic error 3) human error.The cause of random errors are difficult to quantify while the human errors can be minimized by taking a range of readings to reduce the error.

Errors while measuring boiling point may be human errors while noting down the boiling temperature or instrumental or systematic error if there is a fault in the thermometer.

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The pH of a 0.0001M (10-4 M) HCl solution is  4 ; The pH of a sample of milk is 6.5, while a sample of soft drink has a pH of 4.5. The hydrogen ion concentrations ([H ]) of the two samples are 3.16 x \(10^{(-7)\) mol/L, 3.16 x \(10^{(-5)\) mol/L.

To determine the pH of a solution, we can use the equation:

pH = -log[H+]

1. For a 0.0001M (\(10^{-4\) M) HCl solution:

pH = -log(0.0001)

pH = -(-4)

pH = 4

Therefore, the pH of the 0.0001M HCl solution is 4.

2. The pH of milk is 6.5, we can find the hydrogen ion concentration ([H+]) using the inverse of the pH equation:

[H+] = \(10^{(-pH)\)

[H+] = \(10^{(-6.5)\)

[H+] = 3.16 x \(10^{(-7)\) mol/L

Therefore, the hydrogen ion concentration of the milk sample is 3.16 x \(10^{(-7)\) mol/L.

3. Soft drink with a pH of 4.5:

[H+] =\(10^{(-pH)\)

[H+] = \(10^{(-4.5)\)

[H+] = 3.16 x \(10^{(-5)\) mol/L

Therefore, the hydrogen ion concentration of the soft drink sample is 3.16 x \(10^{(-5)\) mol/L.

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Answer:

Carbon:  14

Oxygen: 16

Nitrogen: 15

Sulpher: 16

Answer:

59.92 × 10²³ atoms are in 9.95 moles of iron

1.8 ×10²² molecules are in 0.03 moles of Carbon dioxide

1.19 moles are found in 7.20 x 10^23 atoms of platinum

The statement "they cannot be hydrolyzed" about triacylglycerols is NOT true.

Triacylglycerols can be hydrolyzed, in fact. Triacylglycerols are enzymatically broken down into glycerol and specific fatty acids through a process known as lipolysis. Lipases, which cleave the ester bonds between glycerol and fatty acids, aid in hydrolysis.

Once hydrolyzed, the free fatty acids can be utilized in other metabolic processes or to produce energy. Triacylglycerols have a crucial role as an energy storage form in organisms, offering an easily accessible energy source when needed. This role is facilitated by their capacity to undergo hydrolysis.

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The complete question is:

Which of the following statements about triacylglycerols is NOT true.

they are an ester of glycerol and three fatty acids.

triacylglycerols that are oils contain mostly unsaturated fatty acids.

they function as a storage form of lipids.

they cannot be hydrolyzed.

Answer: hydogen

Explanation:

each element that forms cations is a metal, except for one (hydrogen), while each element that forms anions is a nonmetal. This is actually one of the chemical properties of metals and nonmetals: metals tend to form cations, while nonmetals tend to form anions

Answer:

6.C

7.D

8.D

Explanation:

6. Chlorine is a non-metal, so is helium is inert hence Chlorine is the correct answer.

7.Group 18 elements are noble gases with maximum electron configuration hence they do not bond further

8.During bonding metals transfer  electrons i.e. they become less negative and more positive thus having a positive ion

It is important to note that without additional information about the specific chemicals in containers A and B, we cannot determine their identities with certainty.

1. When the sample from container A dissolved, the temperature of the solution decreased by 0.02°C. This indicates an endothermic reaction, where heat is absorbed from the surroundings.
2. When the sample from container B dissolved, the temperature increased by 0.58°C. This indicates an exothermic reaction, where heat is released to the surroundings.

Based on these observations, we can conclude that the chemical in container A is likely an endothermic substance that absorbs heat from its surroundings when it dissolves. Conversely, the chemical in container B is likely an exothermic substance that releases heat to its surroundings when it dissolves.

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Quantity of water form will be 36 gram

We need a stoichiometric equation for water synthesis:

H2(g) + 1/2O2(g) → H2O(l)

Clearly, dihydrogen must be present in a 2:1 molar ratio with respect to dioxygen.

Moles of dihydrogen = 4.8/2 = 2.4 moles

Moles of dioxygen = 38.4/32 = 1.2 moles

Given these molar quantities (they are approx. 2:1) the gases are present in stoichiometric proportion. 2mol water are going to be produced.

2 mol x 18g/mol = 36 gram

So, quantity of water form will be 36 gram

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Answer:

When chromium chloride, CrCl2, is dissolved in water, the temperature of the water decreases. ... The attractive forces between water molecules and chromium and chloride ions is stronger, because the reaction is endothermic means the energy released in formation is less than the energy required in breaking bond.

Bridget and Lauren can lose their personal assets as the result of their company's financial problems.

This is defined as an  item of property owned by a person or company which has value and available to meet debts and other obligations.

We were told that the business went broke and they had debts which could result in them losing their personal assets to clear it.

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Answer: It’s C

Explanation:

Matter is anything that has mass and takes up space.

hope this helps <3

Answer:

The new volume of the air inside when the cabin is pressurized to 75 kPa is 37818.\(\overline 6\) m³

Explanation:

The given 747 airplane parameters are;

The volume of air in the airplane, V₁ = 28,000 m³

The pressure of the air on the ground, P₁ = 101.3 kPa

The pressure of the air once it is in flight, P₂ = 75 kPa

Let V₂ represent the new volume of the air inside when the cabin is pressurized to 75 kPa

Boyle's Law states that the pressure of a given mass of air is inversely proportional to its volume at constant temperature

Therefore, by Boyle's law, we have;

P ∝ 1/V and P₁·V₁ = P₂·V₂

Which gives;

V₂ = P₁·V₁/P₂

Substituting the known values, we get;

V₂ = 101.3 kPa × 28,000 m³/(75 kPa) = 37818.\(\overline 6\) m³

The new volume of the air inside when the cabin is pressurized to 75 kPa = V₂ = 37818.\(\overline 6\) m³.

Answer:

1) Zn is a element

2)CuSO4 is an ionic compound

Explanation:

Answer: an element and an ionic compound

Explanation: my mom told me

Answer:

1. 5

2. 13

Explanation:

1. AB = 2 + 3 = 5

2 A2B2 = 2(2) + 3(3) = 4 + 9 = 13

11.9 liters of ammonia gas could form.The balanced chemical equation for the formation of ammonia from nitrogen and hydrogen gas is:N2(g) + 3H2(g) → 2NH3(g)

Given that 6.23 L of nitrogen gas and 28.77 L of hydrogen gas were allowed to react, we need to determine the amount of ammonia gas formed.To solve the problem, we need to follow the following steps:

Step 1: Convert the given volumes of nitrogen and hydrogen gas to moles using the ideal gas law, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

We assume that the temperature and pressure are constant. Let's assume that the temperature is 25°C or 298 K and the pressure is 1 atm.

Therefore:For nitrogen gas:

n = PV/RT

= (1 atm)(6.23 L)/(0.0821 L·atm/mol·K)(298 K)

= 0.266 mol

For hydrogen gas:

n = PV/RT

= (1 atm)(28.77 L)/(0.0821 L·atm/mol·K)(298 K)= 1.225 mol

Step 2: Determine the limiting reactant, which is the reactant that is completely consumed in the reaction. We can determine this by comparing the number of moles of nitrogen and hydrogen gas used in the reaction. According to the balanced equation, 1 mole of nitrogen gas reacts with 3 moles of hydrogen gas to produce 2 moles of ammonia gas. Therefore, the amount of ammonia gas produced depends on the amount of hydrogen gas present. Since there are 3 times more moles of hydrogen gas than nitrogen gas, nitrogen gas is the limiting reactant and hydrogen gas is in excess.

Step 3: Calculate the amount of ammonia gas produced by using the mole ratio from the balanced equation. According to the balanced equation, 1 mole of nitrogen gas reacts with 3 moles of hydrogen gas to produce 2 moles of ammonia gas.

Therefore, the number of moles of ammonia gas produced is:

n = 0.266 mol N2 × (2 mol NH3/1 mol N2)

= 0.532 mol NH3

Since 1 mole of gas occupies 22.4 L at STP (standard temperature and pressure), we can convert the number of moles of ammonia gas to liters by using this conversion factor:

1 mol NH3 = 22.4 L

Therefore, the volume of ammonia gas produced is:

V = 0.532 mol NH3 × 22.4 L/mol NH3

= 11.9 L

Therefore, 11.9 liters of ammonia gas could form.

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The limiting reactant for the given reaction between Sb2O6 and H2SO4 is H2SO4. This is determined by comparing the mole ratios of the reactants to their coefficients in the balanced chemical equation.

We need to compare the amount of each reactant with their respective stoichiometric coefficients. For Sb.06, the stoichiometric coefficient is 1. Therefore, the amount of Sb.06 is already given as 0.1mol, which means it is not in excess. For H2SO4, the stoichiometric coefficient is 6. Therefore, we need to convert the amount of H2SO4 to moles of Sb.06.
0.5mol H2SO4 x (1mol Sb.06 / 6mol H2SO4) = 0.0833mol Sb.06
Since the amount of H2SO4 (0.5mol) is greater than the amount required for the reaction (0.0833mol), H2SO4 is in excess and Sb.06 is the limiting reactant.

In conclusion, Sb.06 is the limiting reactant in the given reaction. This answer is written in three paragraphs.
To find the limiting reactant, we need to compare the mole ratios of the reactants provided to their coefficients in the balanced chemical equation. 1. For the reaction: Sb2O6 + 6 H2SO4 → 2 Sb2(SO4)3 + 6 H2O
We are given 0.1 mol of Sb2O6 and 0.5 mol of H2SO4.
Divide the moles of each reactant by their respective coefficients:
Sb2O6: 0.1 mol ÷ 1 = 0.1
H2SO4: 0.5 mol ÷ 6 = 0.0833
The reactant with the lowest result from the calculation above is the limiting reactant.

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To estimate the carbon-normalized sorption coefficient, sorption coefficient, and mass of organic contaminant per mass of sorbent, we need additional information such as the organic carbon partition coefficient (Koc) and the bulk density of the soil.

Carbon-Normalized Sorption Coefficient (Koc):

The carbon-normalized sorption coefficient represents the sorption capacity of the sorbent material for the organic contaminant. It is calculated by dividing the sorption coefficient (Kd) by the organic carbon content in the soil.

Koc = Kd / % organic carbon

Sorption Coefficient (Kd):

The sorption coefficient represents the ratio of the concentration of the contaminant adsorbed onto the sorbent material to the concentration in the aqueous phase.

Kd = (mass of contaminant sorbed / mass of sorbent) / (concentration of contaminant in water)

Mass of Organic Contaminant per Mass of Sorbent:

To calculate the mass of organic contaminant per mass of sorbent, we need to know the mass of the contaminant adsorbed onto the sorbent material and the mass of the sorbent itself.

Mass of organic contaminant per mass of sorbent = mass of contaminant sorbed / mass of sorbent

To perform these calculations, we need the organic carbon partition coefficient (Koc) and the bulk density of the soil. With this information, we can estimate the sorption characteristics of hexachlorobenzene in the given scenario.

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Among common fluids, gases generally have the lowest viscosity compared to liquids.

Viscosity is a measure of a fluid's resistance to flow or its internal friction. In gases, the molecules have greater separation and move more freely, resulting in lower intermolecular forces and thus lower viscosity.

Among gases, lighter gases with smaller molecular sizes tend to have lower viscosities. For example, helium (He) is one of the lightest gases and has a very low viscosity. Other gases like hydrogen (H2) and neon (Ne) also exhibit low viscosities.

It's important to note that the viscosity of a fluid can be influenced by various factors, such as temperature and pressure. However, in general, gases have lower viscosities compared to liquids.

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The answer is C) more flexible.

High-context cultures tend to value personal relationships and implicit communication, which can result in a more flexible approach to business contracts compared to low-context cultures that value explicit communication and legalistic contracts.

What is a culture?

Culture refers to the shared beliefs, values, customs, behaviors, and artifacts that characterize a group or society. It includes not only the tangible aspects such as clothing, food, and architecture but also the intangible aspects such as language, religion, and social norms.

What is legalistic contracts?

Legalistic contracts refer to the type of contracts that are highly detailed and specific, with a focus on legal obligations, rights, and penalties. These contracts are usually used in low-context cultures, where communication is direct, and the meaning is based on the words themselves rather than the context.

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Answer:

electroplating

Explanation:

Electroplating means coating a metal into zinc to protect from rust

Sacrificial protection is the protection of iron or steel against corrosion by using a more reactive metal

Answer:

Gravity

Explanation:

According to Newton's Law of Gravity, an object with mass will attract another object with mass.

The total mass of the solution is   0.100025 Kg. Hence, the concentration in parts per million is 246.93 ppm.

Parts per million or ppm is  a term used to express the concentration of a solution. The concentration of the a solution can be expressed in terms of the mass , volume or number of moles of the solute in the solution.

ppm of a solution = weight of solute in kg/weight of solution in kg ×10⁶.

Given , mass of solute lead nitrate = 0.025 g

mass of solvent = 100 g.

total mass of the solution = 100 + 0.025 = 100.025.g

mass in kg =   0.100025 Kg.

mass in kg of solute = 0.000025 Kg

ppm of solution  = 0.000025 kg/   0.100025 Kg ×10⁶. = 249.9 ppm.

Therefore, the concentration of the solution in ppm is 249.9 ppm.

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Sexual assault is a serious crime that affects individuals, families, and communities. It is a violation of human rights and should not be tolerated in any form or context.

Sexual assault is a form of sexual violence that involves sexual contact or behavior without the explicit permission of the other individual. It is a forcible violation of the sexual intimacy of another person. A sexual assault may be either physical or psychological in nature. It can take place in different settings, such as at home, in the workplace, in the educational institutions, or in the streets.

Sexual assault can be committed by a stranger or someone who is known to the victim, such as a partner or family member. The perpetrator may use physical force, threats, or coercion to achieve the sexual act. In some cases, they may take advantage of the victim's vulnerability, such as intoxication, age, or disability. Sexual assault can have severe emotional, physical, and psychological effects on the victim. They may experience anxiety, depression, post-traumatic stress disorder, and other mental health conditions. It can also lead to physical injuries, sexually transmitted infections, and unwanted pregnancies.

To combat sexual assault, it is important to educate people about its prevalence and effects and promote healthy relationships based on respect, consent, and communication. Legal action should also be taken against the perpetrators to ensure that they are held accountable for their actions and prevent them from committing such crimes in the future.

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Arsenic, hydraulic fracturing, lead, and PFAS present chemical threats to global drinking water supplies in different ways.

Let's discuss each of them in detail:

(a) Arsenic - The origin of arsenic exposure is natural deposits or contamination from agricultural or industrial practices. Human health consequences include skin, lung, liver, and bladder cancers. It can also lead to cardiovascular diseases, skin lesions, and neurodevelopmental effects. Drivers of continued exposure include poor regulation and monitoring. Modern solutions include rainwater harvesting and treatment.

(b) Hydraulic fracturing - Hydraulic fracturing involves using a mixture of chemicals, water, and sand to extract natural gas and oil from shale rock formations. The origin of exposure is contaminated surface and groundwater due to the release of chemicals from fracking fluids and other sources. Human health consequences include skin, eye, and respiratory irritation, headaches, dizziness, and reproductive and developmental problems. Drivers of continued exposure include lack of regulation and poor oversight. Modern solutions include alternative energy sources and regulation of the industry.

(c) Lead - Lead contamination in drinking water can occur due to corrosion of plumbing materials. Human health consequences include neurological damage, developmental delays, anemia, and hypertension. Drivers of continued exposure include aging infrastructure and poor maintenance. Modern solutions include replacing lead service lines, testing for lead levels, and implementing corrosion control.

(d) PFAS - PFAS (per- and polyfluoroalkyl substances) are human-made chemicals used in a variety of consumer and industrial products. They can enter the water supply through wastewater discharges, firefighting foams, and other sources. Human health consequences include developmental effects, immune system damage, cancer, and thyroid hormone disruption. Drivers of continued exposure include the continued use of PFAS in consumer and industrial products. Modern solutions include reducing the use of PFAS in products and treatment methods such as granular activated carbon.

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