How many moles are in 23.9 grams of titanium

Answer:

A. Recession of glaciers and ice caps

Explanation:

Land bridges began to disappear after the Ice Age ended.

Basically, a rise in sea level.

Hope this helps :D

Answer:

Recession of glaciers and ice cap

Explanation:

because i just took the test

100% sure

Answer:

[tex]M=0.362M[/tex]

Explanation:

Hello!

In this case, according to the following chemical reaction:

[tex]AgNO_3(aq)+NaCl(aq)\rightarrow AgCl(s)+NaNO_3(aq)[/tex]

It is possible to compute the moles of silver nitrate via stoichiometry that produced 4.576 g of silver chloride as shown below:

[tex]n_{AgNO_3}=4.576gAgCl*\frac{1molAgCl}{143.32gAgCl}*\frac{1molAgNO_3}{1molAgCl}\\\\n_{AgNO_3}=0.03193molAgNO_3[/tex]

Thus, since the molarity is obtained by dividing moles by volume, we obtain:

[tex]M=\frac{0.03193mol}{0.08811L}\\\\M=0.362M[/tex]

Best regards!

Answer:

Magnesium Mg 12  12

Phosphorous P 15  15

Flourine F 9  9

Iron Fe 26  26

Calcium Ca 20  20

Flourine F  9 9

Explanation:

Answer:

Magnesium Mg 12  12

Phosphorous P 15  15

Fluorine F 9  9

Iron Fe 26  26

Calcium Ca 20  20

Fluorine F  9 9

Answer:

Common names of ethers simply give the names of the two alkyl groups bonded to oxygen and add the word ether. The current practice is to list the alkyl groups in alphabetical order (t-butyl methyl ether), but older names often list the alkyl groups in increasing order of size (methyl t-butyl ether).

Explanation:

Hope it is helpful.......

Answer:

lol hope i help

Explanation:

Answer:uhhhhh should I be concerned

Explanation:

Answer:

hmmm o_O Maybe you... shouldnt

Answer:

the sun is more brighter than white dwarfs

because of above reason.

Answer:

yes

Explanation:

That is exactly what Edge says. Just yes

Answer:

In computer science, a literal is a notation for representing a fixed value in source code.  An anonymous function is a literal for the function type. In contrast to literals, variables or constants are symbols that can take on one of a class of fixed values, the constant being constrained not to change.

Explanation:

Particles of matter are continuously moving, so they possess kinetic energy. As temperature rise the kinetic energy of atoms increase and particles move faster. So, they overcome the bonding force that holds them together. So, they change their state.

Answer:an element in a chemical equation is called a subscript.

Explanation:

it represents the the number of atoms of that element present in the compound. hope this helps have a great day yall

The number at the bottom right of an element in a chemical equation is called a subscript.

Subscripts represent the number of atoms of that particular element in a molecule or formula unit. They indicate the ratio of atoms or ions present in a compound. Subscripts are written in a smaller font size and appear slightly below the element's symbol.

For example:

In the chemical compound water [tex](H_2O)[/tex],the subscript '2' indicates that there are two atoms of hydrogen (H) bonded to one atom of oxygen (O). The subscript specifies the ratio of elements in the compound, indicating that there are two hydrogen atoms for every one oxygen atom in water.

Therefore, the term subscript refers to the number on the right of an element in a chemical equation.

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Answer:

tendría que ser 10.?e :

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Answer:

Chemical change

Explanation:

The reddish-brown substance is rust. Rust is a chemical change because rust is a different kind of matter than the iron, oxygen, and water present before the rust formed. The explosion of nitroglycerin is a chemical change because the gases produced are very different kinds of matter from the original substance.

I thought it was related to spanish a spanish question Im sorry :(

Answer:

It means that you are active in the day and not active in the night.

Explanation:

Like owls for example.

Answer: 0.175 moles of chlorine are need to produce 19.0 grams of [tex]FeCl_3[/tex]

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}\times{\text{Molar Mass}}[/tex]    

[tex]\text{Moles of} FeCl_3=\frac{19.0g}{162.2g/mol}=0.117moles[/tex]

The balanced chemical equation is:

[tex]2Fe+3Cl_2\rightarrow 2FeCl_3[/tex]  

According to stoichiometry :

2 moles of [tex]FeCl_3[/tex] require = 3 moles of [tex]Cl_2[/tex]

Thus 0.117 moles of [tex]FeCl_3[/tex] will require=[tex]\frac{3}{2}\times 0.117=0.175moles[/tex] of [tex]Cl_2[/tex]

Thus 0.175 moles of chlorine are need to produce 19.0 grams of [tex]FeCl_3[/tex]

Answer:

comparison microscope

Explanation:

please follow me

Answer:

Isopropyl has the specific orientation of being attached to a central carbon atom with two CH3 molecules attached (so in IUPAC naming it can become dimethylethyl), whereas propyl is three carbons all attached in a line branching off the main carbon chain, so it's two CH2 molecules and one CH3 molecule.

Explanation:

n-propane are longer chain hydrocarbon whereas isopropane is branched hydrocarbon. Isopropyl radical is more stable than n-propyl radical.

Radicals are reaction intermediates containing one unpaired electron. They are highly reactive species . The stability of radicals depends on the structure and reaction condition.

n -propyl radical is  CH₃-CH₂-CH₂·

Isopropyl radical  is written as CH₃-CH·-CH₃

The isopropyl group contains a branch in the second carbon and its makes the central carbon with secondary structure.

The stability of tertiary radicals is greater than secondary which is greater than primary. Therefore, isopropyl radical is more stable than n -propyl radical.

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Answer:

3.31 g/cm³

Explanation:

1000cm³ = 1L

4.87mL = 4.87 × 10^-3 × 1000 = 4.87 cm³

density = mass/volume = 16.12/4.87 = 3.31 g/cm³

Answer:

0.680 M

Explanation:

Step 1: Given data

Step 2: Calculate the moles of NaCl (solute)

We will use the following expression.

n = m/M

n = 33.8 g/(58.44 g/mol) = 0.578 mol

Step 3: Calculate the molar concentration of NaCl

Molarity is the number of moles of solute divided by the liters of solution.

M = n/V = 0.578 mol/0.850 L = 0.680 M

Answer:

I believe the answer for this is A

Answer:

0.214 M.

Explanation:

The equation showing the balanced chemical reaction between HCl and NaOH is given below;

HCl + NaOH ------------------> NaCl + H​​​​​​2​​​​O

Therefore, in entry one(1) the volume of HCl solution is 10mL and the volume of NaOH solution is 21.5 mL. Hence, the molarity of HCl solution is given below;

NB: the molarity of NaOH = 0.1 M.

The molarity of HCl = molarity of NaOH × volume of NaOH/ volume of HCl solution.

The molarity of HCl = 0.1 × 21.5 / 10 = 0.215 M.

For entry two(2), the volume of HCl solution is 10mL and the volume of NaOH solution is 21.3 mL. Hence, the molarity of HCl solution is given below;

The molarity of HCl =0.1 × 21.3 / 10 = 0.213 M.

For entry three(3), the volume of HCl solution is 10mL and the volume of NaOH solution is 21.43 mL. Hence, the molarity of HCl solution is given below:

Molarity of HCl = 0.1 × 21.43 / 10 = 0.2143 M.

Therefore, let's take the average of all the molarities of HCl in the three entries.

Hence, 0.215M + 0.213M + 0.2143M / 3 = 0.214 M.

Answer:

It is going to be binary

Explanation:

Answer:

210 moles

Explanation:

From the question given above, the following data were obtained:

Volume of solution = 25.6 L

Molarity = 8.20 M

Mole of solute =?

Molarity is simply defined as the mole of solute per unit litre of water. Mathematically, it can be expressed as:

Molarity = mole /Volume

With the above formula, the mole of solute dissolved can be obtained as follow:

Volume of solution = 25.6 L

Molarity = 8.20 M

Mole of solute =?

Molarity = mole /Volume

8.20 = mole / 25.6

Cross multiply

Mole = 8.20 × 25.6

Mole = 209.92 ≈ 210 moles

Thus, the mole of solute dissolved in the solution is 210 moles

Answer:

I'm pretty sure it's the second one that it contains fewer oxygen atoms

Answer:

i think its C

Explanation:

Answer:

A.

Explanation:

because a theory is like a prediction and a prediction is like a hypothesis.

Answer:

1.5 mol

Explanation:

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 1.50moles are there in  95.33 grams of  copper. The correct option is option A.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The stoichiometry represents the number of moles.

Mathematically,

number of moles of copper=given mass of copper÷ molar mass of copper

Molar mass of 1 mole of copper=63.55g/mol

mass of copper=95.33g

Substituting all the given values in the above equation, we get

number of moles of copper=95.33/63.55

number of moles of copper =1.50moles

Therefore, 1.50 moles are there in  95.33 grams of  copper. The correct option is option A.

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Answer:

it is false

Explanation:

it goes in different ways not in order

Answer:

a . eight tenths of her cookies

Explanation:

Let the total number of Lakesha's cookies be represented by x.

So that;

She gave three tenths to Bailey = [tex]\frac{3}{10}[/tex] of x

                                                     = [tex]\frac{3x}{10}[/tex]

She gave five tenths to Helen = [tex]\frac{5}{10}[/tex] of x

                                                  = [tex]\frac{5x}{10}[/tex]

Fraction of Lakesha's cookies given away = [tex]\frac{3x}{10}[/tex] + [tex]\frac{5x}{10}[/tex]

                                                      = [tex]\frac{3x+ 5x}{10}[/tex]

                                                      = [tex]\frac{8x}{10}[/tex]

Thus, the fraction of cookies given away by Lakesha is [tex]\frac{8}{10}[/tex].

Answer:

2.8 m

Explanation:

From the question given above, the following data were obtained:

Number of mole KBr = 0.210 mole

Mass of water = 0.075 kg

Molality of KBr =?

Molality is simply defined as the mole of solute per unit kg of water. Mathematically, it can be expressed as follow:

Molality = mole of solute / Kg of water.

With the above formula, we can obtain the molality of the KBr solution. This can be obtained as follow:

Number of mole KBr = 0.210 mole

Mass of water = 0.075 kg

Molality of KBr =?

Molality = mole of solute / Kg of water.

Molality = 0.210 / 0.075

Molality = 2.8 m

Therefore, the molality of the KBr solution is 2.8 m.