25.00 ml of an unknown concentration of acetic acid is titrated with 40.62 ml of the standard base (use molarity from 9 above). what is the molarity of this acid? (hint: example 12.4

LEAST TO MOST POLAR- hexane,diethyl ether,acetone,n-propanol,water ,methanol

Considering the problem  we can say that the kids are compared to be more polar or smaller molecular weight compounds. The more polar compounds interact with silica more just as the kids bus stopped at every point and reached the destination late. Whereas, the adult bus is compared to be less polar compounds or high molecular weight which interacts less and reaches the destination faster.

Thus more polar compounds reaches the destination late whereas less polar compound reaches first.

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To convert the temperature from Fahrenheit (°F) to Celsius (°C), we can use the following formula:

How much heat is required to convert solid ice with a mass of 965 g and at a temperature of -18.5 degree Celsius to liquid water at a temperature of 72.0 degree Celsius? (The specific heat of ice is 2

If 20 g of steam at 100 degrees Celsius interact thermally with 140 g of ice at 0 degrees Celsius. What is the final temperature?

What is the number of grams of steam at 100 degrees C that will condense as 5 g of ice at 0 degrees C melts?The material that has the lowest temperature most of us are likely to encounter is dry ice, - 79.0 degrees C. What would its temperature be on the Fahrenheit scale? How much heat is required to convert 13.0 g of ice at -8.00 degrees Celsius to steam at 100.0 degrees Celsius?What mass of ice at -15 degrees C must be added to 60 g of steam at 120 degrees C to end up with water at 40 degrees C?How much heat is required to convert solid ice with a mass of 625 g and at a temperature of -28.5 degree Celsius to liquid water at a temperature of 73.0 degree Celsius? (The specific heat of ice is c What is the temperature of ice right after it is formed by freezing water how much heat is required to convert solid ice with a mass of 625 g and at a temperature of -11.5 \degree C to liquid water at a temperature of 53.5How much heat is required to convert solid ice with a mass of 695 g and at a temperature of -21.5 degree C to liquid water at a temperature of 47.5 degree C? (The specific heat of ice is c_{ice} = 210


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Answer:

Magnesium Flouride is a ionic compound and thus has a giant lattice structure. Its ions are held together in this lattice by strong electrostatic forces of attraction. A large amount of energy is needed to overcome the strong electrostatic forces of attraction between the Mg2+ ions and the F- ions to separate the ions. Hence Magnesium fluoride has a very high melting point.

In the given reaction  ₉₆²⁴⁶Cm + ₆¹²C ---> 4 ¹on + X  it shows an example of an artificial transmutation reaction.

An artificial transmutation reaction may resemble this. The method of causing nuclear reactions by blasting atomic nuclei with high-energy particles like ions or neutrons is referred to as artificial transmutation.

In this instance, the transmutation is induced by bombarding the carbon nucleus (C) with additional particles or a high-energy beam, resulting in the production of the following products: Element X and 4 1on (Helium-4)

Blasting an element with a basic particle, an element can be artificially transmuted into a different element.

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Answer:

From point, 1 mole of water = molar mass of water =18g 20 moles of water = 18 g x 20 = 360g (iv) From point, 6.022 x 1023 molecules of water = 1 mole = 18g of water 1.2044 x 1025 molecules of water Therefore, points (ii) and (iv) represent 360 g of water.

ANSWER

The number of moles of Pb(SO4)2 is 1.5 moles

EXPLANATION

Given that;

The mass of Li2SO4 is 330g

Follow the steps below to find the moles of Pb(SO4)2

Step 1; Write the balanced equation of the reaction

Step 2; Find the number of moles of Li2SO4 using the below formula

Recall, that the molar mass of Li2SO4 is 109.94 g/mol

The number of moles of Li2SO4 is 3.00 moles

Step 3; Find the number of moles of Pb(SO4)2 using a stoichiometry ratio

In the above equation of the reaction, 1 mole Pb(SO4)2 reacts to give 2 moles LiSO4

Let the number of moles of Pb(SO4) be x

Therefore, the number of moles of Pb(SO4)2 is 1.5 moles

A 0.5 M solution of calcium phosphate would contain both calcium ions and phosphate ions. Calcium phosphate has the formula Ca3(PO4)2, meaning that there are three calcium ions for every two phosphate ions. To calculate the concentration of calcium ions, we first need to determine the molar mass of calcium phosphate, which is 310.18 g/mol.

Next, we need to calculate the number of moles of calcium phosphate in 0.5 L of the solution. We can do this by multiplying the concentration (0.5 M) by the volume (0.5 L), which gives us 0.25 moles of calcium phosphate.

Since there are three calcium ions for every two phosphate ions in calcium phosphate, there will be 0.25 x 3 = 0.75 moles of calcium ions in the solution. Finally, we divide the number of moles by the volume (0.5 L) to get the concentration in molarity, which is 1.5 M. Therefore, the concentration of calcium ions in the 0.5 M solution of calcium phosphate is 1.5 M.

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Answer:

Because the equilibrium constant is only at constant at temperature. Changing the temperature changes the Ka.

To make a 48% solution from 25 g of solute, you would need approximately 52.08 mL of solvent.

To calculate the volume of solvent required, we need to consider the mass percent of the solution. The mass percent is defined as the ratio of the mass of solute to the total mass of the solution, multiplied by 100. In this case, the mass percent is given as 48%.

To find the volume of solvent, we can set up a proportion using the mass percent. Let's assume the total volume of the solution is V mL. We can set up the following equation:

(25 g)/(V mL) = (48 g)/(100 mL)

Cross-multiplying and solving for V, we get:

25V = 48 * 100

V = (48 * 100)/25

V ≈ 192 mL

Therefore, you would need approximately 192 mL of the solvent to make a 48% solution from 25 g of solute.

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Answer:

the basic elements of environment are lithosphere, hydrosphere, atmosphere and biosphere.

Explanation:

Molar mass of N2 is 28(since atomic weight of nitrogen is 14and forN2=14*2). So mass of 1 mole of N2 is 28g.Therefore mass of 0.5 mole is 28/2 =14g

The density of gasoline id 0.008 g/ml is 18.64 gram.

Density is defined as mass per unit volume it means that mass is present in one meter cube.

S.I unit of density is kg/meter^3.

Mathematically

Density = Mass/Volume.

In above question

Volume = 2330 mL

Density = 0.008 g/mL

Density = mass/ volume

So,

Mass = density x volume

Mass = 0.008 x 2330

Mass = 18.64 gram

Therefore, The density of gasoline id 0.008 g/ml is 18.64 gram.

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Answer:

It's most likely gonna be C.

Explanation:

because ionic compounds can conduct electricity in aqueous solutions and covalent-which are the rest of the answers-don't conduct electricity at all.

It is expected that mercury would have a molten interior based on its small size, rapid rotation, and density. Mercury is one of the four inner planets in our solar system.

It is the smallest planet in our solar system and the one closest to the Sun. Mercury's diameter is just 40% of the Earth's diameter, making it the smallest planet in our solar system. It has a rocky surface that is heavily cratered and has numerous cliffs. Additionally, Mercury has a molten core that accounts for roughly 85 percent of its volume.Mercury's rapid rotation and density suggest that it has a molten interior. Mercury rotates three times on its axis for every two times it orbits the Sun.

This leads to a considerable amount of friction that warms the interior of the planet. Mercury's density is also quite high, indicating that the planet's interior is made up of metals such as iron, nickel, and sulfur, which have relatively high melting points. As a result, the planet's core is assumed to be molten.The above mentioned facts lead to the conclusion that Mercury would have a molten interior.

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Organisms need to detect and respond to changes in their internal and external environment. This is because the conditions inside our body must be carefully controlled for it to function effectively and survive. The control systems that allow organisms to respond to changes are incredibly important.

Answer:

13 if Im right?

Explanation:

Answer:

The ocean holds about 97 percent of the Earth's water; the remaining three percent is found in glaciers and ice, below the ground, in rivers and lakes. Of the world's total water supply of about 332 million cubic miles of water, about 97 percent is found in the ocean.

wait..if you asking about the country it's Brazil✌️

The possible ion that has the configuration 1s²2s²2p⁶3s²3p⁶ is Chlorine Ion.

The given electronic configuration is 1s²2s²2p⁶3s²3p⁶.

First let us count the number of electrons in this atom.

The number of electrons are (2+2+6+2+6)

Total electrons = 18 electrons.

As we can see,

The outermost orbital 3p6 is full. It can only accept one electron.

It means that in the ground state.

The configuration of the species should have been,

1s²2s²2p⁶3s²3p⁵.

Now, as per the electronic configuration. The atom is chlorine.

So, the ion with the given electron configuration should must be chlorine ion.

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During this procedure, the blue (CuSO 4) solution turns into a colorless ZnSO 4 solutions. balanced response. Copper sulfate is produced when Zn (s) and CuSO 4 (aq) combine. Sulfated zinc.

The number of variables on either side of a formula is equal in a balanced action. A chemical reaction's atoms, ions, all molecules are represented by a number called the stoichiometric ratio, that balances exact amounts of each element on the product and reactant sides of equation.

One such equation describes an element's total charge and number of atoms in both the products and reactants of a reaction. In other words, the mass and charge of both sides of a reaction are equal.

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Answer:

the answer is copper :)

Explanation:

Answer:

pH = 7 ⇒ [H⁺] = 1.0x10⁻⁷ M

pH = 5.6 ⇒ [H⁺] = 2.5x10⁻⁶ M

pH = 3.7 ⇒ [H⁺] = 2.0x10⁻⁴ M

H⁺ concentration in the Hubbard Brook sample is 80 times higher than in unpolluted rainwater.

Explanation:

To answer this problem we need to keep in mind the definition of pH:

Meaning that after isolating [H⁺] we're left with:

Now we proceed to calculate [H⁺] for the given pHs:

Finally we calculate how many times higher is [H⁺] when pH = 3.7 than when pH = 5.6.

Answer:

1. 7 (a neutral solution)

Answer: 10-7= 0.0000001 moles per liter

2. 5.6 (unpolluted rainwater)

Answer: 10-5.6 = 0.0000025 moles per liter

3. 3.7 (first acid rain sample in North America)

Answer: 10-3.7 = 0.00020 moles per liter

The concentration of H+ in the Hubbard Brook sample is 0.00020/0.0000025, which is 80 times higher than the H+ concentration in unpolluted rainwater.

Explanation: -

0.2 M each of nitric acid and carbonic acid will have the same pH.

The pH of substances is mathematically given as:

pH - -log [H+]

Nitric and carbonic acid dissociates according to the following:

HNO3 ---------> H+ + NO3-

H2CO3 -------> H+ + HCO3-

Thus, both acids ionizes to produce the same number of moles of H+, thus, producing the same pH

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Answer:

The answer is "Ammonium nitrate is the reactant of this chemical reaction".

Explanation:

The Ammonium nitrate (NH4NO3)  is an ammonium and nitrate ionic crystalline solid. In water and hygroscopic as a strong, it's also highly soluble, although it does not form hydrates.

It uses as a nutrient for generating medications as well as leaven fertilizers and explosive materials. Nitrate in ammonium is sodium bicarbonate ammonium chloride. It is incendiary, an oxidizing agent, and a fertilizer.

Answer:

The answer is D, I would type it out but it is to long and I'm kind of lazy, but anyways! Your answer is D

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Answer:

Since pure natural gas (a.k.a. methane) has no smell, utility companies add smelly, sulfur-containing odorants called mercaptans, or thiols, to warn us if anything is amiss with our pipelines. ... Olfactory receptors are present in specialized sensory cells called olfactory sensory neurons, which line our noses

Explanation:

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Answer:

4.9 × 10²³ molecules

Explanation:

Given data:

Number of molecules = ?

Number of moles of oxygen = 0.815 mol

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

0.815 mol  ×  6.022 × 10²³ molecules  / 1 mol

4.9 × 10²³ molecules