6. a monobasic organic acid x has the composition 31. 6% carbon, 5. 3% hydrogen and 63. 1% oxygen.

a. what is the empirical formula of acid x?

b. an aqueous solution solution contains 11. 4 g of x per dm. 20 cm of this solution required 30

cm² of 0. 100 mol dm naoh for reaction in a titration. calculate the relative molecular mass of

the acid.

Answer:

c actual contains three atom

Answer:

rabbit is one of the sweet animal

in the world

3 moles of NaOH reacts with 1 mole of phosphoric acid.

The moles ratio of the reaction between NaOH and Phosphoric acid is given by the equation of the reaction below:

\(3\:NaOH + H_{3}PO_{4} \rightarrow Na_{3}PO_{4} + 3\:H_{2}O \\ \)

Based on the equation of the reaction, 3 moles of NaOH reacts with 1 mole of phosphoric acid.

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Answer:

helllllooooooo hi how is life

Answer:

hiiii

Explanation:

A polymer called polystyrene (PS) is created from the liquid hydrocarbon styrene, which is produced commercially from petroleum.

The monomers of the aromatic hydrocarbon styrene are converted into a synthetic polymer known as polystyrene. Polystyrene can be either foamed or solid. For normal use, polystyrene is clear, hard, and brittle. It is a fairly priced resin when measured by weight. It has a weak barrier to oxygen and water vapor and a relatively low melting point. Polystyrene is commonly used to preserve consumer items in both solid and foam forms. In order to protect food from damage or spoiling, polystyrene is frequently used to produce CD and DVD covers, foam shipping peanuts, food packaging, meat/poultry trays, and egg cartons.

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Answer:

Decrease temperature with increase in ammonium nitrate concentration.

Explanation:

The temperature changes when different masses of ammonium nitrate are dissolved in water because the ammonium nitrate takes energy from the surrounding water environment for the breaking of ionic bonds as a result the temperature of water decreases. When more concentration of ammonium nitrate is added to water, more decrease occur in temperature of water and the water becomes cold.

Answer:

B) mitochondria

Explanation:

The energy diagrams of the synthesis, single replacement, and double replacement reactions are found in the attached image.

Energy profile diagrams are diagrams which illustrate the potential energy changes that occur when reactant molecule combine to form products.

The energy diagrams shows the potential energy of the reaction, the energy of the transition state of the reaction, the activation energy of the reaction, as well as the potential energy of the products.

From energy diagrams, the enthalpy change of a reaction can be determined. Also, it can also be established whether the reaction is exothermic or endothermic.

For exothermic reactions, the enthalpy change is negative since the potential energy of the reactants is greater than the potential energy of the products.

For endothermic reactions, the enthalpy change is positive since the potential energy of the reactants is less than the potential energy of the products.

Based on this therefore, the energy diagrams of the given reactions have been constructed and are found in the attached image.

In conclusion, energy diagrams are used to show energy changes occurring in a reaction.

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Answer:

I think it's C or D Sorry if I'm Wrong

Explanation:

it just makes the most sense to me

In the formation of ammonia, nitrogen shares three electrons in a covalent bond with three hydrogen atoms

We can see  that nitrogen has five electrons on its outermost shell. It is able to accept three electrons and share them with another atom in order to form a covalent bond.

In the formation of ammonia, nitrogen shares three electrons in a covalent bond with three hydrogen atoms to give the compound \(NH_{3}\). This explains why the bond that exists in the ammonia molecule is a covalent bond.

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The following pairs are correct:- cyanide, \(CN^-\),- chlorate, \(ClO^{-3\),- nitrate, \(NO^{-3\).Therefore, the correct answers are cyanide, \(CN^-\); chlorate, \(ClO^{-3\); and nitrate,\(NO^{-3\) .

Cyanide is a polyatomic ion consisting of a carbon atom and a nitrogen atom that is triple-bonded to each other, with a negative charge on the ion. The formula for cyanide is \(CN^-\).

Chlorate is a polyatomic ion consisting of a chlorine atom and three oxygen atoms, with a negative charge on the ion. The formula for chlorate is \(ClO^{-3\).

Nitrate is a polyatomic ion consisting of a nitrogen atom and three oxygen atoms, with a negative charge on the ion. The formula for nitrate is \(NO^{-3\).

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Answer:

2NH4^+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l)

Explanation:

Molecular balanced reaction equation;

2NH4Cl (aq) + Mg(OH)2---->2NH3 (g) + 2H2O (l) + MgCl2 (aq)

Complete ionic reaction equation;

2NH4^+(aq) + 2Cl^-(aq) + Mg^2+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l) + Mg^2+(aq) + 2Cl^-(aq)

Net Ionic reaction equation;

2NH4^+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l)

Answer:

Gibbs equation helps us to predict the spontaneity of reaction on the basis of enthalpy and entropy values directly. When the reaction is exothermic, enthalpy of the system is negative making Gibbs free energy negative. Hence, we can say that all exothermic reactions are spontaneous.

Answer:

I'm pretty sure it's the cell membrane

In order for an ionic substance to dissolve, the ion-dipole force must be the strongest.

When ionic substances are dissolved in water, the strength of the solute-solvent intermolecular forces determines the solubility. The following are the intermolecular forces that compete to determine whether or not an ionic substance will dissolve in water:

Ion-dipole forces

Hydrogen bonding

Dipole-dipole forces

London dispersion forces

The solubility of ionic solids is determined by the strength of the ion-dipole forces and the lattice energy of the compound. When the ion-dipole forces are strong enough to overcome the lattice energy, the ionic solid dissolves.The strength of the ion-dipole interaction between the ions in the crystal and the water molecules in the solvent is the most important factor that determines the solubility of ionic solids in water. If this interaction is strong enough to overcome the energy required to break the crystal lattice, the ionic solid will dissolve. In order for an ionic substance to dissolve, the ion-dipole force must be the strongest.

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(a) The pH at 25°C in first solution is 1.97

(b) The pH at 25°C in  second solution is 2.19

(c) The pH at 25°C in third solution is 2.26

(a) For the solution formed by adding 25.0 g of furoic acid and 30.0 g of sodium furoate to 0.250 L of water, we can calculate the molarity of furoic acid as follows:

25.0 g of furoic acid = 1.000 mol of furoic acid

1.000 mol of furoic acid = 4.000 L of solution

Molarity of furoic acid = \(\frac{4.000 L}{0.250 L} = 16.00 M\)

The pH of the solution can then be calculated using the Ka value:

\(Ka =\frac{ [H^+][C_5H_3O_3 ^-]}{[HC_5H_3O_3]}\)

\([H^+] = Ka *\frac{ [HC_5H_3O_3] }{ [C_5H_3O_3^-]} \\\\= 6.76 * 10^{-4} * \frac{16.00}{1} = 0.1081 M\)

\(pH = -log[H^+] = -log(0.1081) = 1.97\)

(b) For the solution formed by mixing 30.0 mL of 0.250 M \(HC_5H_3O_3\)and 20.0 mL of 0.22 M\(NaC_5H_3O_3\) and diluting the total volume to 125 mL, we can calculate the molarity of furoic acid as follows:

30.0 mL of 0.250 M \(HC_5H_3O_3\) = 0.0750 mol of furoic acid

20.0 mL of 0.220 M \(NaC_5H_3O_3\) = 0.044 mol of sodium furoate

Total moles of furoic acid = 0.0750 + 0.044 = 0.119 mol

Molarity of furoic acid =\(\frac{0.119 mol}{1.25 L} = 0.0952 M\)

The pH of the solution can then be calculated using the Ka value:

\(Ka =\frac{ [H^+][C_5H_3O_3^-]}{[HC_5H_3O_3]}\)

\([H+] = Ka *\frac{ [HC_5H_3O_3] }{ [C_5H_3O_3^-] }\\= 6.76 * 10^{-4} * \frac{0.0952 }{ 1} \\= 0.0065 M\)

\(pH = -log[H^+] = -log(0.0065) = 2.19\)

(c) For the solution prepared by adding 50.0 mL of 1.65 M\(NaOH\)solution to 0.500 L of 0.0850 M \(HC_5H_3O_3\), we can calculate the molarity of furoic acid as follows:

50.0 mL of 1.65 M NaOH = 0.0825 mol of NaOH

0.500 L of 0.0850 M \(HC_5H_3O_3\) = 0.0425 mol of furoic acid

Total moles of furoic acid = 0.0825 + 0.0425 = 0.125 mol

Molarity of furoic acid =\(\frac{ 0.125 mol}{1.50 L} = 0.083 M\)

The pH of the solution can then be calculated using the Ka value:

\(Ka =\frac{ [H^+][C_5H_3O_3^{-}}{[HC_5H_3O_3]}\)

\([H+] = Ka *\frac{ [HC5H3O3] }{[C5H3O3-] }\\= 6.76 * 10^{-4}*\frac{ 0.083 }{1 }\\= 0.0055 M\)

\(pH = -log[H^+] = -log(0.0055) = 2.26\)

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Answer:

Neutral substance is a substance that show no acid or base properties.

Explanation:

Neutral substance is a substances that show no acid or base properties, has an equal number of hydrogen and hydroxyl ions and does not change the color of litmus paper.

Answer:

They release no substance

Explanation:

Since the substance is neutral, nothing will be released from it.

Answer:

KCIO

Explanation:

The balanced chemical equation of the reaction that occurs when nitrogen gas and oxygen gas combine to produce nitric oxide, NO, is given as: 1 N2(g) + 1 O2(g) → 2 NO(g)The given reaction is an endothermic process, and it absorbs 88.0 kJ of energy from the surroundings.

Therefore, the number of moles of N2 consumed in the reaction will be equal to the number of moles of NO produced.Moles of NO produced = Moles of N2 consumed = (Mass of N2 consumed / Molar mass of N2)The heat change (ΔH) of the reaction = 88.0 kJΔH for the given reaction can be given as: ΔH = Sum of the bonds broken - Sum of the bonds formed.

In the given reaction, N≡N and O=O are the bonds broken, and two N=O bonds are formed.

ΔH for the reaction is given as: ΔH = (1/2) (N≡N bond energy) + (1/2) (O=O bond energy) - (2 × N=O bond energy)To solve the given problem, we need to calculate the bond energies of the N≡N and O=O bonds using the given bond energies table.

Then we substitute the bond energies into the above equation and solve for x. However, the table is not given here; hence, we can not calculate the bond energies to find the solution, which is the mass of nitrogen gas consumed in the reaction. In conclusion, we can say that the solution to the given problem cannot be determined with the given information.

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The reaction that take place when active metals react with acids are:

Active metals are those metals which are very reactive and are found high above hydrogen in the activity series of metals.

The reactivity of metals is determined by the ability of the meta to give up electrons to form positive ions called cations.

Therefore, active metals are those metals that readily give up their electrons to form cations.

The active metals are found in the group 1A and 2A and 3A of the periodic table.

The active metals include; sodium, potassium, calcium, aluminum, magnesium, zinc etc.

The active metals react with dilute acids to displace hydrogen, resulting in the evolution of hydrogen gas.

Considering the given equations, the reactions of the active metals are:

Mg (s) + 2HCl (aq) → MgCl₂ (aq) + H₂ (g)

Zn (s) + 2 HCl (aq) → ZnCl₂ (aq) + H₂ (g)

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Answer:

The volume in cubic centimeters is 250

Explanation:

The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other), the direct rule of three must be applied. To solve a direct rule of three, the following formula must be followed:

a ⇒ b

c ⇒ x

So:

\(x=\frac{c*b}{a}\)

The direct rule of three is the rule applied in this case where there is a change of units. To perform this conversion of units, you must first know that 1 mL = 1 cubic centimeters. So, if 1 cubic centimeters is 1 mL, how many cubic centimeters equals 250 mL?

\(cubic centimeters=\frac{250 mL*1 cubic centimeters }{1 mL}\)

cubic centimeters= 250

The volume in cubic centimeters is 250

Answer:

Drd

Explanation:

Answer:

They are multilayered

Spacesuits provide protection from radiation and offer normal air pressure inside

Explanation:

Answer:

yes

Explanation:

the energy released in the synthesis of water is equal to the energy absorbed in the decomposition of water. This outcome happens because the difference in energy between the reactants and the products in both cases is equal. . It follows the law of conservation of energy.

NaCl > NaBr > NaF The higher the charge and size of the ions that make up an ionic compound, the higher the melting point.

Electrostatic forces are forces of attraction or repulsion that act between objects that have static electric charges. These forces are created when electrons are either transferred or shared between two objects. Electrostatic forces can be very strong, even though the charges involved are typically very small.

NaCl has the highest charge and size, so it will have the highest melting point. NaBr has a slightly lower charge and size than NaCl, so it will have a lower melting point. Finally, NaF has the lowest charge and size of the three, so it will have the lowest melting point.

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Answer:

This took forever T-T

Explanation:

1. The condition of the soil has a big impact on the environment. Good soil helps plants grow, supports different kinds of life, and prevents erosion. It also keeps nutrients in balance and affects the quality of water and air. If the soil is unhealthy or polluted, it can harm plants, animals, and the overall ecosystem.

2. The dodo bird is an example of a species that no longer exists. It used to live on an island called Mauritius. Sadly, people hunted the dodo bird for food and destroyed its habitat. They also introduced other animals that harmed the dodo bird's population. Because of these reasons, the dodo bird became extinct. This affected the environment because the dodo bird played a role in spreading seeds and helping plants grow.

3. The Sumatran orangutan is a species in danger of disappearing. Its biggest threats are losing its home due to forests being cut down for palm oil, illegal hunting, and being taken as pets. People are working to protect the orangutans by preserving their habitat, rescuing and rehabilitating them, and educating communities about their importance.

4. Central Park in New York City is a natural area created in 1857. It was made for people to enjoy nature in the middle of the city. People can do many outdoor activities there like walking, picnicking, and playing sports. The park is also home to various birds and animals, which adds to the city's biodiversity.

5. When a certain environment, like a forest or a desert, is damaged or in danger, it has a big impact on the whole ecosystem. Many different plants and animals depend on each other in these environments. If something harms or destroys their homes, it can lead to the loss of species, disruption of food chains, and less diversity. It can also affect important processes like water and carbon cycles, and even influence the climate. People who rely on these environments for resources and livelihoods are also affected. That's why it's important to protect and take care of these natural areas.

Answer:

0.08937835168818843

Explanation:

1 grams Oxygen is equal to 0.062502343837894 mole.

Answer:

those things that looks like cristals

Glass is a transparent material as it allows light to pass through.

The question is incomplete as the images that have been referred to here are not shown and as such I will just consider glass as a transparent material.

Glass, which is primarily made of silicon dioxide with a few impurities, is more properly classified as a supercooled liquid than as a solid. It is translucent because there are no internal grain boundaries.

The photon instead moves through unhindered. The glass is translucent as a result.

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Answer:

b

Explanation:

b

The complete combustion of 4.00 mol butane (C4H10) would result in 704.16 grams of CO2

To determine how many grams of CO2 would result from the complete combustion of 4.00 mol butane (C4H10), please follow these steps:

Step 1: Write the balanced chemical equation for the combustion of butane.
C4H10 + 6.5O2 -> 4CO2 + 5H2O

Step 2: Determine the mole ratio of butane to CO2.
From the balanced equation, we can see that for every 1 mole of butane, 4 moles of CO2 are produced. So, the mole ratio is 1:4.

Step 3: Calculate the moles of CO2 produced.
Since you have 4.00 moles of butane, use the mole ratio to find the moles of CO2:
4.00 moles of butane * (4 moles of CO2 / 1 mole of butane) = 16.00 moles of CO2

Step 4: Convert moles of CO2 to grams of CO2.
To do this, you need to know the molar mass of CO2, which is approximately 44.01 g/mol. Multiply the moles of CO2 by the molar mass:
16.00 moles of CO2 * 44.01 g/mol = 704.16 grams of CO2

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