A 5.0 g sample of metal was heated to a temperature of 100.0 °C then placed into a calorimeter containing 35 mL of water at 20.0°C.
The final temperature was 26.5°C What is the specific heat capacity of the metal?

Answer:

yes, it is a homogeneous mixture because the different parts cannot be seen.

Explanation:

Explanation:

a chemical reaction that absorbs energy is known to be endothermic since heat is being taken in by the reaction. The value of the transition state would be 150 because you have to subtract the product's enthalpy and the reactant's enthalpy to obtain it. A positive value for the transition state also corroborates that the reaction is endothermic.

John Dalton contribute to the understanding of the atom that all matter was composed of atoms, indivisible and indestructible building blocks.

While all atoms of an element were identical, different elements had atoms of differing sizes and mass.

An atom is a particle of matter that uniquely defines a chemical element.

An atom consists of a central nucleus that is usually surrounded by one or more electrons.

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.

Dalton based his theory on the law of conservation of mass and the law of constant composition.

The theory states that all matter is made of atoms, which are indivisible.

(1) All matter is composed of tiny, indivisible particles, called atoms, that cannot be destroyed or created.

(2) Each element has atoms that are identical to each other in all of their properties.

Learn more about the atom here:

https://brainly.com/question/1566330

#SPJ2

the answer should be

Zn+CuSO4→ZnSO4+Cu.

I hope this is right!

Answer:

A) He is taking lot’s of notes.

Explanation:

Conflict resolution refers to the process that helps the two parties involved in a communication to turn towards a peaceful resolution when a dispute arises. Conflicts are very obvious to occur among the people working together. Around the professional world, conflicts may emerge among the co-workers, supervisors, and among the management team. The process that helps to resolve the issues is termed to be the conflict resolution process.

In the given situation, the conflict resolution process of resolving the issue would be option A. All the other options would lead towards the emergence of conflict or misunderstanding respectively.

Answer:

A.

He is taking lots of notes.

Explanation:

I took the practice on edge.2020

Answer:Year after year, J.Gilbert’s has clinched the “Best Entrée” title at the lauded Taste of Worthington Festival. And we’re often called “Worthingon’s Best Kept Secret.” Some consider us the best steakhouse in Worthington. Others simply consider us the best restaurant in Worthington. Enjoy our Prime wood-fired steaks and seafood – inspired by Kansas City-steakhouse fare – in a luxe, yet warm atmosphere, all served with impeccable care.

Explanation:

Answer:

atoms are matter and atoms can be destroyed or created  

Explanation:

i'm smart :)

Sodium(Na) is the limiting reagent.

The reactant that is totally consumed during a reaction, or the limiting reagent, decides when the process comes to an end. The precise quantity of reactant required to react with another element may be estimated from the reaction stoichiometry.

How do you identify a limiting reagent?

The limiting reactant is the one that is consumed first and sets a limit on the quantity of product(s) that can be produced. Calculate how many moles of each reactant are present and contrast this ratio with the mole ratio of the reactants in the balanced chemical equation to get the limiting reactant.

Start by writing the balanced chemical equation that describes this reaction

\(2Na_{(s)} + Cl_{2 (g)} -- > 2NaCl_{(s)}\)

Notice that the reaction consumes 2 moles of sodium metal for every 1 mole of chlorine gas that takes part in the reaction and produces 2 moles of sodium chloride.

now we can see that we have 3 moles of sodium and 3 moles of chlorine, according to question. so, we can say that sodium is the limiting reagent in the given situation.

to learn more about Limiting Reagent go to - https://brainly.com/question/14222359

#SPJ4

Answer:

\(T_2=261.46\ K\)

Explanation:

It is given that,

Original temperature, \(T_1=323^{\circ}C=596.15\ K\)

Original volume, \(V_1=2.85\ L\)

We need to find the temperature if the volume of the balloon to be shrink to 1.25 L.

According to Charles law, at constant pressure, \(V\propto T\)

It would means, \(\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}\)

T₂ = ?

\(T_2=\dfrac{V_2T_1}{V_1}\\\\T_2=\dfrac{1.25\times 596.15}{2.85}\\\\T_2=261.46\ K\)

So, the new temperature is 261.46 K.

The liquid dispensed from a burette is called titrant. What is burette? A burette is a laboratory equipment used in analytical chemistry to dispense volumes of liquid precisely and accurately. A burette is used to deliver a variable, measured amount of liquid, and it is calibrated to enable a scientist to determine the volume of liquid it contains to an accurate level. What is titrant? Titrant is a liquid substance with a known concentration. Titrant is used in analytical chemistry to determine the concentration of an analyte (a chemical species under analysis). The amount of titrant required to react with a particular quantity of analyte is measured, and the concentration of the analyte is calculated from this titration.

#SPJ11

Learn more about titration:

https://brainly.com/question/186765

The added volume of base at the equivalence point of HF is determined by the stoichiometry of the reaction and the concentration of HF.

At the equivalence point of a reaction, the stoichiometric amounts of acid and base have reacted completely, resulting in a neutral solution. In the case of HF, a strong base such as sodium hydroxide (NaOH) can be used to neutralize the acid.

The added volume of base required to reach the equivalence point depends on the stoichiometry of the reaction, specifically the balanced equation between HF and NaOH. For example, if the balanced equation is 1:1, meaning one mole of HF reacts with one mole of NaOH, then the added volume of base would depend on the initial concentration of HF.

If the concentration of HF is known, the volume of base required to reach the equivalence point can be calculated using the stoichiometry of the reaction and the concept of molarity.

For more questions like Volume click the link below:

https://brainly.com/question/1578538

#SPJ11

Taking into account the reaction stoichiometry, the mass of Zn required to generate 0.15 mol of H₂ is 9.807 grams.

In first place, the balanced reaction is:

Zn + 2 HCl  → ZnCl₂ + H₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: If by reaction stoichiometry 1 mole of H₂ is generated by 65.38 grams of Zn, 0.15 mole of H₂ is generated by how much mass of Zn?

mass of Zn= (0.15 mole of H₂× 65.38 grams of Zn)÷ 1 mole of H₂

mass of Zn= 9.807 grams

Finally, a mass of 9.807 grams of Zn are required.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

The measure of the total energy radiated by a star in one second is called luminosity.

Luminosity represents the intrinsic brightness of a star and is a measure of the total power output in terms of energy. It is an important characteristic of a star that indicates its size and temperature.

Luminosity is typically expressed in units of watts or solar luminosities (the luminosity of our Sun). Flux, on the other hand, refers to the amount of energy received per unit area per unit time, and it is influenced by the distance between the star and the observer. Apparent magnitude and absolute magnitude are measures of a star's brightness as observed from Earth and at a standard distance, respectively, and they are related to luminosity but not the direct measure of energy radiated.

To know more about luminosity, refer here:

brainly.com/question/29215071#

#SPJ11

The specific heat of the unknown compound in a styrofoam calorimeter of negligible heat capacity is - 0.890 J g⁻¹C⁻¹.

The formula to find the specific heat of the unknown compound is Q = (m₁c₁ + m₂c₂) ∆T.

Here, m₁, c₁, and T₁ are the mass, specific heat, and temperature of water respectively. Similarly, m₂, c₂, and T₂ are the mass, specific heat, and temperature of the unknown compound respectively.

Given, Mass of water, m₁ = 126.3 g

Initial temperature of water, T₁ = 21.3°C

Mass of the unknown compound, m₂ = 114.7 g

Initial temperature of the unknown compound, T₂ = 70.8°C

Final temperature of the mixture, T₃ = 28.4°C

Calorimeter constant = negligible heat capacity

The specific heat of water is 4.18 J g⁻¹C⁻¹, which we can use in our calculation.

Substituting the given values, we get, Q = (126.3 g) (4.18 J g⁻¹C⁻¹) (28.4°C − 21.3°C) + (114.7 g) (c₂) (28.4°C − 70.8°C)

Q = 1866.228 + (−17254.72c₂)

Q = −15388.49 c₂

Therefore, the specific heat of the unknown compound is -0.890 J g⁻¹°C⁻¹ (rounded off to 3 significant figures).

Learn more about Specific heat here:

https://brainly.com/question/11297584
#SPJ11

Answer:

137.9035 g

Explanation:

1 mole of copper in grams is 63.55 g

2.17 mole of Cu weighs 137.9035 g (63.55x2.17)

The freezing point of the solution prepared by adding 50.0 g of NaCl to 250.0 g of pure water is approximately -6.37 °C.

The freezing point of a solution is determined by its molality and the molal freezing point depression constant (Kfp). In this case, we have 50.0 g of NaCl dissolved in 250.0 g of water, with water's Kfp = 1.86 °C/m.

First, calculate the molality of the solution:
1. Find moles of NaCl: 50.0 g NaCl / (58.44 g/mol) ≈ 0.856 mol NaCl
2. Find the mass of water in kilograms: 250.0 g / 1000 ≈ 0.25 kg
3. Calculate molality: 0.856 mol NaCl / 0.25 kg water ≈ 3.424 m

Next, use the freezing point depression equation:
ΔTf = Kfp × molality
ΔTf = 1.86 °C/m × 3.424 m ≈ 6.37 °C

Since pure water freezes at 0 °C, subtract the temperature depression from the freezing point of pure water:
Freezing point of solution = 0 °C - 6.37 °C ≈ -6.37 °C

To know more about freezing point depression, refer to the link below:

https://brainly.com/question/31357864#

#SPJ11

Answer: Liquids are anisotropic because their properties are independent of the axis of testing. This statement is FALSE.

Anisotropy is the property of being directionally dependent, implying various qualities in various directions. In contrast to isotropy, which implies properties that are the same regardless of the direction of measurement. As a result, liquids are isotropic, indicating that their qualities do not differ based on the testing axis.

A material is anisotropic if its mechanical or physical properties differ depending on the direction of measurement. Solids, for example, can be anisotropic. When evaluating solids, it's frequently necessary to be aware of this property, which can have an impact on the data gathered during testing.

Therefore, liquids are not anisotropic because their properties are not dependent on the axis of testing. The correct statement is "Liquids are isotropic because their properties do not depend on the axis of testing."


Learn more about Anisotropy here:

https://brainly.com/question/28379789#



#SPJ11

The electron in a hydrogen atom  that has principal quantum number n = 4 could have  4 possible values of L the orbital quantum number.

What is orbital quantum number ?

The orbital quantum number, or l, must be smaller than the primary quantum number, or n, which is equivalent to an electron "shell." Since all of the electrons in each shell have the same primary and orbital quantum numbers, l separates each shell into n subshells.

The l values that can occur when n = 4 are 0 through 3. This suggests that the 4s, 4p, 4d, and 4f subshells are the 4 potential subshells. There is only one orbital in the 4s subshell, yet it has space for two electrons. There are three orbitals in the 4p subshell, which has room for six electrons.

To learn more about principal quantum number click on the link below:

https://brainly.com/question/13312003

#SPJ4

Answer:

50 moles

Explanation:

took the quiz

Explanation:

So 2 moles of carbon reacts with 2 moles of oxygen to produce 2 moles of CO2.

A mole of CO2 molecules (we usually just say “a mole of CO2”) has one mole of carbon atoms and two moles of oxygen atoms. The atom ratio and the mole ratio of the elements are identical! 1-).

1 mole of CO2 = 1 × 12 + 2 × 16 = 44 g. 2 mole of CO2 = 2 × 44.0 = 88.0 g.

Answer:

Water is a remarkable substance, and its unique properties are largely due to the presence of polar covalent bonds and hydrogen bonds in its structure. These characteristics play a crucial role in the physical and chemical properties of water, making it essential for life as we know it.

Explanation:

The polar covalent bonds in water arise from the unequal sharing of electrons between oxygen and hydrogen atoms. This results in the oxygen atom having a partial negative charge (δ-) and the hydrogen atoms having partial positive charges (δ+). These charges create polarity within the water molecule, leading to the formation of hydrogen bonds.

Hydrogen bonds occur when the partially positive hydrogen atom of one water molecule is attracted to the partially negative oxygen atom of another water molecule. These hydrogen bonds are relatively weak individually, but when present in large numbers, they contribute to the cohesion, surface tension, and high boiling point of water.

The importance of these bonds is manifold. The cohesion between water molecules due to hydrogen bonding enables water to form droplets, have a high surface tension, and flow freely, facilitating transport within organisms and in the environment. Additionally, hydrogen bonding leads to the high specific heat capacity and heat of vaporization of water, making it an effective regulator of temperature in living organisms and ensuring stable environmental conditions.

Furthermore, hydrogen bonds play a crucial role in the unique properties of water as a solvent. The polar nature of water allows it to dissolve a wide range of substances, including ionic compounds and polar molecules, facilitating various biological processes such as nutrient transport and chemical reactions in cells.

The non-metals are boron and carbon. The metal is aluminum and the metalloid is silicon.

Explanation:

non-metal = boron, carbon

metal = aluminum

metalloid = silicon

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

A solid material which is lustrous, hard, shiny, malleable, and sonorous with good electrical and thermal conductivity.

Metal is an element which is typically hard, shiny, fusible, malleable, and ductile, with good electrical and thermal conductivity.

A nonmetal is an element that does not have the properties of a metal.

A metalloid is an element having intermediate properties of both metals and nonmetals.

Hence,

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

Learn more about metals here:

https://brainly.com/question/16759172

#SPJ2

Answer:

A leaf needs carbon dioxide and water for photosynthesis. ... For carbon dioxide to enter, the stomata on the surface of the leaf must be open. As you have seen, transpiration draws water from the roots into the leaf mesophyll.

I hope this helps you :)

The correct answer associated with the Calvin-Benson cycle is C) RuBP (ribulose-1,5-bisphosphate).

The Calvin-Benson cycle, also known as the light-independent reactions or the dark reactions, is a series of biochemical reactions that occur in the stroma of chloroplasts during photosynthesis. Its primary function is to fix carbon dioxide and synthesize glucose. During the Calvin-Benson cycle, the enzyme Rubisco (ribulose-1,5-bisphosphate carboxylase/oxygenase) catalyzes the carboxylation of RuBP, resulting in the formation of an unstable six-carbon compound. This compound immediately splits into two molecules of 3-phosphoglycerate (3-PGA), which are then converted into other molecules through a series of enzyme-catalyzed reactions. The cycle regenerates RuBP in the process, allowing the cycle to continue. Acetyl-CoA is associated with the citric acid cycle (Krebs cycle), TMAO (trimethylamine N-oxide) is involved in osmoregulation, FADH2 is a carrier molecule in cellular respiration, and PABA (para-aminobenzoic acid) is a vitamin precursor. These compounds are not directly involved in the Calvin-Benson cycle. The correct answer is C) RuBP.

for more questions on Calvin
https://brainly.com/question/29871204
#SPJ8

Answer:

Hey there!

This is already rounded to four significant figures!

Zeroes after the decimal but before the 7 don't count, and 7, 0, 6, and 2 count as significant figures.

So, the answer would be 0.007062.

Let me know if this helps :)

4 significant figures are there in 0.007062.

“The term significant figures refer to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation.

The number of significant figures in an expression indicates the confidence or precision with which an engineer or scientist states a quantity.”

Zeroes after the decimal but before the 7 don't count, and 7, 0, 6, and 2 count as significant figures.

Hence, 4 significant figures are there in 0.007062.

Learn more about significant figures here:

https://brainly.com/question/14359464

#SPJ5

The oxidized form of the molecule is quinone.

Oxidation has several definitions. Some of them are

In this case, quinone gained an electron from complex 1 to become quinol. Following the definition of oxidation as the loss of electrons, then we can say that the oxidized form of the molecule is quinone itself.

Immediate it gains an electron, it becomes reduced to quinol.

More on oxidation can be found here: https://brainly.com/question/9496279

#SPJ1

The given reaction is already balanced, that is to say tha the number of atoms in the reactants matches the number of atoms in the products. In the reaction, we can see the relationship between CaC2 and H2O. For each mole of CaC2 two moles of H2O react.

So, if 4.8 moles of CaC2 are consumed the moles of H2O needed will be:

Mol of H2O = Mol of CaC2 x 2

Mol of H2O = 4.8 x 2 = 9.6 mol of H2O

Now, to calculate the grams of H2O we will use the following equation and the mass molar of H2O.

Mass molar of H2O =18.01 g/mol

So, if 4.8 moles of CaC2 are consumed in this reaction, 172.9 g of H2O are needed

Answer:

1.08 x 10^2 gm of H2O

Explanation:

number of moles of O2 = 97g /32 g/moles = 3.03 moles

3.03 moles of O2 produces 6.06 moles of H2O

amount of water produced = 6.06 mol x 18 g /mol = 109.08 g = 1.08 x 10^2 g

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.