If 41grams of water at 24°C absorbs 2208 J of heat energy, what will be the final temperature of the water?

Answers

Answer 1

Answer: The problem can solved using the heat equation which is expressed as:

H = mCΔT

where H is the energy absorbed or released, m is the mass of the substance, C is the specific heat capacity, and ΔT is the change in temperature.

2208 J = 41 g x 4.18 J/g·°C x ( T - 24 °C)
T = 36.88 °C

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What type of measurement is indicated by g/mL ?

Answers

Answer:

grams per milliliter.

Explanation:

While any units of mass and volume can be used to calculate density the most common are grams (g) and milliliters (ml). This gives density the units of grams per milliliter (g/ml).

Write a balanced equation for the reaction of NaCH3COO (also written as NaC2H3O2) and HCl.

Answers

The balanced equation is as follows:

$\boxed{{\text{NaC}}{{\text{H}}_3}{\text{COO}}+{\text{HCl}}\to{\text{NaCl}}+{\text{C}}{{\text{H}}_3}{\text{COOH}}}$

Further Explanation:

The chemical reaction that contains equal number of atoms of the different elements in the reactant as well as in the product side is known as balanced chemical reaction. The chemical equation is required to be balanced to follow the Law of the conservation of mass.

Displacement reactions:

These reactions are also known as replacement or metathesis reactions. These types of reactions occur when one of the reactant is replaced by the other one. Usually the more reactive element displaces the less reactive element. Both metals and non-metals can take part in displacement reactions.

Such reactions are generally expressed as follows:

${\text{A}}+{\text{B}}-{\text{C}}\to{\text{A}}-{\text{C}}+{\text{B}}$

Examples of displacement reactions are as follows:

(a) The reaction between copper metal and silver nitrate to form silver metal and copper nitrate as:

${\text{Cu}}+{\text{AgN}}{{\text{O}}_3}\to{\text{Ag}}+{\text{Cu}}{\left({{\text{N}}{{\text{O}}_3}}\right)_2}$

(b) The reaction between chlorine gas and potassium bromide to form potassium chloride and bromine gas as:

${\text{C}}{{\text{l}}_2}+{\text{KBr}}\to{\text{B}}{{\text{r}}_2}+{\text{KCl}}$

The steps to balance a chemical reaction are as follows:

Step1: Complete the reaction and write the unbalanced symbol equation.

In the displacement reaction, sodium acetate $\left({{\text{NaC}}{{\text{H}}_3}{\text{COO}}}\right)$ reacts with hydrochloric acid $\left({{\text{HCl}}}\right)$ to form NaCl and ${\text{C}}{{\text{H}}_3}{\text{COOH}}$ . The physical state of ${\text{NaC}}{{\text{H}}_3}{\text{COO}}$ , HCl, NaCl and ${\text{C}}{{\text{H}}_3}{\text{COOH}}$ is aqueous. The unbalanced chemical equation is as follows:

${\text{NaC}}{{\text{H}}_3}{\text{COO}}+{\text{HCl}}\to{\text{NaCl}}+{\text{C}}{{\text{H}}_3}{\text{COOH}}$

Step2: Then we write the number of atoms of all the different elements that are present in a chemical reaction in the reactant side and product side separately.

• On reactant side,

Number of sodium atom is 1.

Number of carbon atoms is 2.

Number of oxygen atoms is 2.

Number of hydrogen atom is 4

Number of chlorine atoms is 1.

• On product side,

Number of sodium atom is 1.

Number of carbon atoms is 2.

Number of oxygen atoms is 2.

Number of hydrogen atom is 4.

Number of chlorine atoms is 1.

Step3: Initially, we try to balance the number of other atoms of elements except for carbon, oxygen, and hydrogen by multiplying with some number on any side.

Sodium and chlorine atoms are balanced on both sides. Now the reaction is,

${\text{NaC}}{{\text{H}}_3}{\text{COO}}+{\text{HCl}}\to{\text{NaCl}}+{\text{C}}{{\text{H}}_3}{\text{COOH}}$

Step 4: After this, we balance the number of atoms of carbon and then hydrogen atom followed by oxygen atoms.

Carbon, hydrogen, and oxygen atoms are balanced on both sides. Now the reaction is,

${\text{NaC}}{{\text{H}}_3}{\text{COO}}+{\text{HCl}}\to{\text{NaCl}}+{\text{C}}{{\text{H}}_3}{\text{COOH}}$

Step5: Finally, we check the number of atoms of each element on both the sides. If the number is same then the chemical equation is balanced.

The balanced chemical equation is as follows:

${\text{NaC}}{{\text{H}}_3}{\text{COO}}+{\text{HCl}}\to{\text{NaCl}}+{\text{C}}{{\text{H}}_3}{\text{COOH}}$

Learn more:

1. Balanced chemical equation: brainly.com/question/1405182

2. Number of covalent bonds does nitrogen formed with its unpaired: brainly.com/question/5974553

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Chemical reaction and equation

Keywords: Balancing, displacement reaction, NaCl, CH3COOH, CH3COO, NaCH3COO, HCl, atoms, oxygen, carbon, hydrogen, chlorine.

The balance chemical equation is:

NaCH₃COO + HCl → NaCl + HCH₃COO

Make

Given the reaction: S(s)+ O2(g)- SO2(g)+ energy which diagram best represents the potential energy changes for this reaction

Answers

Its graph 1 I just took the test :)

In an exothermic energy diagram, the reactants side is higher in energy than the product side.

What is an exothermic reaction?

An exothermic reaction is one in which the heat of the reactants is greater than that of the products. In that case, energy is given off in the reaction as heat and the reaction vessel is warmer.

Now, in an exothermic energy diagram, the reactants side is higher in energy than the product side.

Learn more about exothermic reaction:brainly.com/question/12786977

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The value of Ka in water at 25 °C for propionic acid (C2H5CO2H) is 3.4 x 10-5 M. What is the pH of a 0.020 M aqueous solution of propionic acid?

Answers

The pH of a 0.020 M aqueous solution of propionic acid is 1.70.

What is aqueous solution?

Aqueous solution is defined as a chemical mixture in which water serves as the solvent. Aqueous solutions are made up of water and one or more dissolved materials. Solids, gases, or other liquids can all dissolve in an aqueous solution. A mixture needs to be stable in order to be considered a true solution.

pH is defined as a scale that is used to describe an aqueous solution's acidity or basicity. A high pH in the body can happen for a number of reasons, such as faulty kidney/liver function, digestive issues, drug side effects, and lung issues. When the body's levels of carbon dioxide, an acid, are too low, respiratory alkalosis occurs.

pH = -log[H+]

pH = -log [ aqueous solution ]

pH = - log [ 0.020 ]

pH = 1.70

Thus, the pH of a 0.020 M aqueous solution of propionic acid is 1.70.

To learn more about aqueous solution, refer to the link below:

brainly.com/question/14097392

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Calculate the [H + ] concentration of a 0.050 M solution of CH3NH2. The Kb of CH3NH2 is 1.8 x 10 -4 . (Hint: First use Kb to findCalculate the [H + ] concentration of a 0.050 M solution of CH3NH2. The Kb of CH3NH2 is 1.8 x 10 -4 . (Hint: First use Kb to find

During an investigation, a student determines that a copper sample has a density of 8.10g/mL. What is the student's percent error if the a ccepted density for copper is 8.96g/mL?

Answers

$p-percent\ error\n p=(|8.10-8.96|)/(8.96)*100\%=(0.86)/(8.96)*100\%=9.6\%$

What determines the strength of a dipole dipole force?

Answers

Answer:

The more polar the molecules, the stronger the force. The more hydrogen in the molecule, the stronger the force.

Explanation:

I hope this helps and please ask if you need further help!

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