what other information do you need in order to determine the molecular formula from the empirical formula of a compound?

Answer: equilibrium constant = 2.576

Answer:

It is in the periodic table, group 9 with the atomic number 7

it's a pure substance consisting only of atoms that all have the same numbers of protons in their nuclei.

The quality and safety of water can be determined using spectroscopic and techniques. Using components of interest (such iron and manganese) or by reacting the compound of interest with another compound to produce a color shift, a colorimeter assesses the intensity of a color.

It is typical to put the solution in a cuvette before reading a sample with a colorimeter. These are tiny, rectangular, often plastic containers that fit into the colorimeter's top slot. The spectrophotometer's cuvette should only contain distilled water when calibrating the device. So, distilled water is employed as a blank to exclude the absorbance of substances other than the analyte being measured. The method known as colorimetric analysis compares the color variations of the solution to estimate the concentration of analyte.

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Answer:

Helium is desired to hydrogen for filling balloons because it's miles non-flammable and more secure than hydrogen. Hydrogen fuel is especially flammable and might without difficulty ignite when uncovered to a spark or flame, which can purpose an explosion. In comparison, helium is an inert fuel that doesn't react with different elements or seize fireplace.

In addition to its safety advantages, helium is also more stable than hydrogen. Helium atoms are larger and heavier than hydrogen atoms, this means that that helium molecules circulate more slowly and are less probable to leak through the walls of a balloon. This makes helium a extra reliable fuel for filling balloons, as it may assist the balloon maintain its form and go with the flow for a longer period of time.

Answer: liquid water 2

Explanation:

Octopus and squids breathe like fishes they breathe from gills

so even octopus and squids breathe through gills too.

maybe this answer would help u

Answer: A balanced equation for the  equilibrium reaction where the aqueous bicarbonate ion, \(HCO^{-}_{3}(aq)\); decomposes to  form hydrogen ions, \(H^{+}(aq)\) and carbonate ions, \(CO^{2-}_{3}\) is \(HCO^{-}_{3} \rightleftharpoons H^{+}(aq) + CO^{2-}_{3}\).

Explanation:

A balanced chemical equation is defined as the equation which contains same number of atoms on both reactant and product side.

Hence, balanced equation for the  equilibrium reaction where the aqueous bicarbonate ion, \(HCO^{-}_{3}(aq)\); decomposes to  form hydrogen ions, \(H^{+}(aq)\) and carbonate ions, \(CO^{2-}_{3}\) is as follows.

\(HCO^{-}_{3} \rightleftharpoons H^{+}(aq) + CO^{2-}_{3}\)

Here, number of atoms present on reactant side are as follows.

Number of atoms present on product side are as follows.

Since, there are same number of atoms present  on both reactant and product side. Therefore, this equation is balanced.

Thus, we can conclude that balanced equation for the  equilibrium reaction where the aqueous bicarbonate ion, \(HCO^{-}_{3}(aq)\); decomposes to  form hydrogen ions, \(H^{+}(aq)\) and carbonate ions, \(CO^{2-}_{3}\) is \(HCO^{-}_{3} \rightleftharpoons H^{+}(aq) + CO^{2-}_{3}\).

The expected calcium carbonate content in modern surface sediments at a latitude of 0 degrees and a longitude of 60 degrees east is variable and influenced by several factors such as water depth, temperature, and productivity.

The calcium carbonate content in modern surface sediments can vary significantly based on environmental conditions. Factors such as water depth, temperature, and productivity play crucial roles in the deposition of calcium carbonate. In general, areas with higher water temperatures and greater productivity tend to have higher calcium carbonate content. However, at a latitude of 0 degrees and a longitude of 60 degrees east, it is challenging to provide a specific expected calcium carbonate value without more detailed information about the local environment and sedimentary processes. It is necessary to consider factors like oceanographic currents, upwelling patterns, and the presence of carbonate-producing organisms to estimate the calcium carbonate content accurately. Field studies and sediment sampling in the specific location of interest would be needed to determine the expected calcium carbonate content more precisely.

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This means that the molar mass of \(\text{C}_{2}\text{H}_{4}\text{S}\) is

\(2(12.011)+4(1.00794)+32.06=60.11376\)

Dividing this by the given molar mass, we get \(\frac{168}{60.11376} \approx 3\)

So, the molecular formula is about \(\boxed{\text{C}_{6}\text{H}_{12}\text{S}_{3}}\)

Negative and positive ions alternate in the ionic crystals. For instance, the melting point of calcium fluoride (CaF\(_2\)) is 1418 °C. Therefore, the correct option is option C.

The description of crystalline solid states that it is a substance whose atoms or even subatomic particles are organized in a highly structured form.  Atomic nuclei in metallic crystals are surrounded by a "sea" of delocalized electrons.

Molecules of many types make up molecular crystals. Atoms that are covalently bound to one another make up covalent network crystals. Jewelry is crafted with diamond. Quartz is used to create things like watches and wall clocks. Among all the given options diamond is the only compound which is Crystalline Solid.

Therefore, the correct option is option C.

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Answer:

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Answer:

Because something that experiences change in magnitude or the direction of the velocity is said to be acceleration .

Explanation:

Answer:

6 protons, 6 neutrons, and 6 electrons.

Explanation:

Iodine ions are oxidized to form iodine when the chlorine gas is bubbled in the solution of potassium iodide.

When chlorine gas is bubbled into a solution of potassium iodide, some amount of the iodide ions are oxidized and changed into iodine which leads to the formation of beautiful violet color of iodine. This colour can be seen as the iodine dissolves in the carbon tetrachloride layer.

While on the other hand, when the high concentration of chlorine is bubbled into the solution of potassium iodide, the iodine reacts and formed iodine monochloride which is ruby red so we can conclude that iodine ions are oxidized to form iodine when the chlorine gas is bubbled in the solution of potassium iodide.

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The concentration (m) of ch3oh in a solution prepared by dissolving 34.4 g of ch3oh in sufficient water to give exactly 230 ml of solution is 1.59 m

The concentration of ch3oh can be calculated using the formula:Concentration (m) = (number of moles of solute) / (volume of solution in liters)

Given: Mass of ch3oh = 34.4 g

Volume of solution = 230 mL

= 0.230 L

To calculate the concentration of ch3oh in molarity:Convert mass of ch3oh to moles

.The molar mass of ch3oh is 32.04 g/mol.Number of moles of

= Mass of ch3oh / Molar mass of ch3oh

= 34.4 g / 32.04 g/mol

= 1.074 mol

Calculate the concentration of ch3oh.

Concentration (m) = Number of moles of ch3oh / Volume of solution in liters

= 1.074 mol / 0.230 L

= 4.67 M

Thus, the concentration (m) of ch3oh in a solution prepared by dissolving 34.4 g of ch3oh in sufficient water to give exactly 230 ml of solution is 4.67 m.

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To convert 3 mg/ml to microgram/microliter, we need to use the conversion factor of 1 mg = 1000 micrograms and 1 ml = 1000 microliters. First, we can convert 3 mg/ml to micrograms/ml by multiplying it by 1000, which gives us 3000 micrograms/ml.

To convert the concentration of your protein sample from mg/ml to µg/µl, you simply need to convert the mass unit from milligrams (mg) to micrograms (µg). There are 1,000 µg in 1 mg. Your current protein concentration is 3 mg/ml. To find the concentration in µg/µl, follow these steps:
1. Convert milligrams to micrograms: 3 mg x 1,000 µg/mg = 3,000 µg.
2. Since there are 1,000 µl in 1 ml, divide the µg by 1,000: 3,000 µg ÷ 1,000 µl = 3 µg/µl.
So, the concentration of your protein sample is 3 µg/µl.To convert this to micrograms/microliter, we can divide by 1000, which gives us 3 micrograms/microliter.

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We compare the moles of each reactant to the stoichiometric ratio of the balanced equation to identify the limiting reactant. Insufficient information is given in case of lithium hydroxide.

We must compare the moles of each reactant to the stoichiometric ratio given in the balanced equation in order to determine the limiting reactant. The limiting reactant in this scenario cannot be identified because the stoichiometric coefficients of the reactants (Li2O and H2O) are not given.

Li2O + H2O, LiOH, water, lithium hydroxide, and none of the above are the available alternatives, but none of them offer enough details to reach a firm judgement. We cannot determine which reactant is present in limiting proportions without the stoichiometric coefficients or further details about the reaction conditions and needs.

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Explanation:

1) it gives you a visual of what you will be doing

2) you can find more variables when looking at it compared to just thinking of it

3) gives you new insights on what is yet to come

4) allows you to answer some questions and begin testing

Answer:

Models make concepts more tangible. They also make it possible to notice patterns, develop or revise representations, and predict or explain events or relationships.

Explanation:

Sample answer from edg

Answer:

B. The League of Nations condemned the violations but took no other action.

Explanation:

Nazi leader, Adolf Hitler violated the Treaty of Versailles by sending German military forces in Rhineland. He not only violated the Treaty of Versailles but the Locarno Pact also.

The treaty was signed in 1919 to end the war between Germany and the Allied Powers.

Even after Adolf Hitler violated the treaty, the League Nations did not take any actions.

Therefore, option B is correct.

Answer:

V₂ = V₁ / T₁ * T₂ . If you prefer to set the final volume and want to estimate the resulting temperature, then the equation of Charles' law changes to: T2=T1/T1 multiplied by v^2.

Two quantities in the ideal gas equation that are directly proportional are Pressure and Temperature

In ideal gas law, PV = nRT

A quantity can be directly or indirectly proportional to each other. In case of directly proportional, if one quantity increases other would also increases and vice versa. In the case of indirectly proportional, the opposite happens i.e., increase in one quantity would result in decrease of another.

As we can see in the ideal gas law, increase in pressure (P) would increase number of moles (n) and Temperature (T). Similarly, increase in volume (V) would also increase number of moles (n) and Temperature (T).

If the law was rearranged, we can observe that increase in pressure would decrease the volume and vice versa.

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Answer:

Cathode (-): Na+ + e- Na

Anode (+): 2 Cl- Cl2 + 2 e-

The statement that describes how a rabbit responds to the spring season is as follows: It rests in it's den (option B).

Hibernation is a state of minimum power consumption, inactivity and metabolic depression in some animals during winter.

Rabbits unlike other animals do not hibernate in the winter or cold weather. They are active year-round. During winter, the colder temperatures and lack of vegetation force rabbits to spend more time searching and hunting for food.

However, as a change, rabbits stay in their den more often to reduce their level of activity.

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Answer:Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

Explanation:

Polar molecules include

bent,

planar

trigonal planar,

Non-polar molecules include

linear

Answer:

true

Explanation:

Explanation:

true. ..... .............

Answer:

Hydrogen chloride (HCl), a compound of the elements hydrogen and chlorine, a gas at room temperature and pressure. A solution of the gas in water is called hydrochloric acid.

Explanation:

hoped that helped

Answer:

0.086

Explanation:

got it on acellus

The mass of the dry solute recovered from the given data is 0.086 g.  Option C

To determine the mass of the dry solute recovered, we need to subtract the mass of the boat from the mass of the boat with the dry solute.

Given the data provided:

Boat Mass: 0.730 g

Boat + Solution: 0.929 g

Boat + Dry: 0.816 g

To find the mass of the dry solute, we subtract the boat mass from the boat + dry mass:

Mass of Dry Solute = (Boat + Dry) - (Boat Mass)

Mass of Dry Solute = 0.816 g - 0.730 g

Mass of Dry Solute = 0.086 g

Therefore, the correct answer is c) 0.086 g.

The mass of the dry solute recovered from the given data is 0.086 g. It is important to note that the mass of the dry solute is obtained by subtracting the mass of the boat from the mass of the boat with the dry solute, as the boat mass represents the weight of the empty boat or container used in the experiment.

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To solve this problem, we can use the formula:
moles of X = (current × time) / (96500 × n)
where n is the number of electrons transferred per X ion during electrolysis (we assume it is one).
First, we need to calculate the number of moles of X produced:
moles of X = (2.00 A × 116 hours) / (96500 × 1) = 0.00236 mol
Rounding to the nearest tenth, the molar mass of X is 127.8 g/mol.
Therefore, none of the options provided match the correct answer.

To calculate the molar mass of metal X, we can use the formula:
Molar mass of X = (Mass of X * Faraday constant) / (Charge * Time * Current)
First, we need to find the charge. The number of moles of electrons can be calculated using the formula:
Moles of electrons = (Current * Time) / Faraday constant
With a current of 2.00 A and time of 116 hours (converted to seconds: 116 * 3600 = 417,600 s), we get:
Moles of electrons = (2.00 A * 417,600 s) / (96,485 C/mol) ≈ 8.66 mol
Now, we can find the moles of metal X using the stoichiometry of XCls, which shows that one mole of metal X is produced per mole of electrons:
Moles of X = 8.66 mol
Finally, we can find the molar mass of X by dividing the mass (603 g) by the moles of X:
Molar mass of X = 603 g / 8.66 mol ≈ 69.6 g/mol
The closest answer to our calculated value is (b) 72.6 g/mol.

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Answer:

About 27 mL of water.

Explanation:

We can use the heat transfer equation. Recall that:

\(\displaystyle q = mC\Delta T\)

Heat is transferred from the water with higher temperature to the water with lower temperature. Hence:

\(\displaystyle -q_1 = q_2\)

Substituting yields:

\(-m_1C \Delta T_1 = m_2C\Delta T _2\)

We can solve for m₁:

\(\displaystyle \begin{aligned} m_1 &= -\frac{m_2 C\Delta T_2}{ C \Delta T_1} \\ \\ & = -\frac{m_2\Delta T_2}{\Delta T _1}\end{aligned}\)

The desired final temperature of water is 36.2 °C. Substitute and evaluate:
\(\displaystyle \begin{aligned} m_1 & = -\frac{(200\text{ mL})(36.2\text{ $^\circ$C}-29.5\text{ $^\circ$C})}{(36.2\text{ $^\circ$C}-84.5\text{ $^\circ$C})} \\ \\ & = -\frac{(200\text{ mL})(6.7\text{ $^\circ$C})}{-49.2\text{ $^\circ$C}}\\ \\ & =27\text{ mL}\end{aligned}\)

In conclusion, about 27 mL of water should be added.