The representative particle for NaF

138 g SO₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 2.16 moles SO₂

[Solve] grams (mass) SO₂

Step 2: Identify Conversions

[PT] Molar Mass of S - 32.07 g/mol

[PT] Molar Mass of O - 16.00 g/mol

Molar Mass of SO₂ - 32.07 + 2(16.00) = 64.07 g/mol

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

138.391 g SO₂ ≈ 138 g SO₂

Answer:

Here is the answer ⬆️⬆️⬆️⬆️⬆️

Answer:

silk are the answer of the question

Answer:

the answer would be 9,448.8

The mass of 9.3 × 10¹⁶ lead atoms is equal to 0.032 mg.

Avogadro’s number represents the number of entities in one mole of any substance. Generally, these units can be molecules, atoms, ions, electrons, or protons, depending upon the type of chemical reaction or reactant and product.

The value of Avogadro’s constant is approximately equal to 6.022 × 10²³ mol⁻¹.

Given, the number of atoms of the lead =  9.3 × 10¹⁶

The atomic mass of the lead = 207.2 g/mol

So 6.022 × 10²³ atoms of lead have mass = 207.2g

Then 9.3 × 10¹⁶ lead atoms will have mass [tex]=\frac{207.2\times 9.3\times 10^{23}}{ 6.022\times 10^{23}}[/tex]  = 31.998 ×10⁻⁷g

As we know, 1 gram = 1000 mg

The mass of the  9.3 × 10¹⁶ lead atoms =  31.998 ×10⁻⁴ mg = 0.0032 mg

Therefore, the mass of 9.3 × 10¹⁶ lead atoms is  0.032 mg.

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Answer:

no se ingles todavía no aprendo a hablar inglés ya si estuvieran en español los respondia

Answer:

B. The order in which specific traits may have evolved

Explanation:

Answer:

pH = 7.14.

Explanation:

Hello there!

In this case, since the pH of a solution is computed via the negative logarithm of the concentration of hydrogen ions:

[tex]pH=-log([H_3O^+])[/tex]

Therefore, we plug in the given concentration to obtain:

[tex]pH=-log(7.2x10^{-8})\\\\pH=7.14[/tex]

Which is a nearly-neutral solution.

Answer: The compound is [tex]Fe_2(SO_4)_3[/tex]

Explanation:

Molar mass is defined as the mass in grams of 1 mole of a substance.

S.I Unit of Molar mass is gram per mole and it is represented as g/mol.

A. 1 mole of [tex]Al(NO_3)_3[/tex] weighs = 26.98(1)+14.01(3)+15.99(9) =212.99 g/mol

B. 1 mole of [tex]C_3H_8[/tex] weighs = 12.01(3)+1.007(8) = 44.1 g/mol

C. 1 mole of [tex]Fe_2(SO_4)_3[/tex] weighs = 55.84(2)+32.06(3)+15.99(12) = 399.91 g/mol

D. 1 mole of [tex]CaCl_2[/tex] weighs = 40.07(1)+35.5(2)= 110.98 g/mol

Thus the compound is [tex]Fe_2(SO_4)_3[/tex]

Answer:

You eat a hamburger and breathe in oxygen.

Oxygen goes immediately from your lungs to blood vessels to cells.

Food molecules in the hamburger are broken down into glucose in the digestive system.

Explanation:

Answer:

B. is the answer

Explanation:

Energy in form of heat is transferred from the warmer mashed potatoes to the cooler spoon.

Answer: A) The amount of product measured after a reaction

A statement which best defines the actual yield of a reaction is "The amount of product measured after a reaction" Hence, Option (A) is correct

Yield of any chemical reaction gives idea about the amount of product that is produced by the chemical reaction between reactants.

Actual yield gives idea about the how much yield of any product will be produced in the given chemical reaction by using the stoichiometry of the reaction.

Therefore, A statement which best defines the actual yield of a reaction is "The amount of product measured after a reaction" Hence, Option (A) is correct

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Answer:

Br2 + CaI2 = CaBr2 + I2

Explanation:

Disclaimer: Not sure what you're asking, however, I will provide you with the full balanced equation.

Br2 + CaI2 = CaBr2 + I2

Answer:

Explanation:

b. rub past each other.

Answer:

When 2 plates collide

Explanation:

My mom is a science teacher

Answer:

6.00 moles of sodium permanganate

Explanation:

Let us attempt to count the number of atoms present in sodium perchlorate. The formula of the compound is NaClO4

Sodium atoms - 1

Chlorine atoms - 1

Oxygen atoms -4

Total number of atoms = 6

Among the options, only KMnO4 also has six atoms. One atom of potassium, one atom of manganese and four atoms of oxygen.

6.00 moles of sodium perchlorate contains the same number of atoms as: A. 6.00 moles of sodium permanganate.

First of all, we would determine the chemical formula and the number of atoms contained in each chemical compound as follows:

For sodium perchlorate:

Sodium perchlorate = [tex]NaClO_4[/tex]

[tex]NaClO_4[/tex] = [tex]1+1+2[/tex] = 6 atoms.

For sodium permanganate:

Sodium permanganate = [tex]KMnO_4[/tex]

[tex]KMnO_4[/tex] = [tex]1+1+2[/tex] = 6 atoms.

For strontium oxide:

Strontium oxide = [tex]SrO[/tex]

[tex]SrO[/tex] = [tex]1+1[/tex] = 2 atoms.

In conclusion, we can deduce that 6.00 moles of sodium perchlorate contains the same number of atoms as 6.00 moles of sodium permanganate.

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Answer:

ikr

Explanation:

‍♂️ it's really sad

Answer:

sometimes the female doesn't want to be hurt, or it could be from the last relationship she was in. maybe just maybe the female feels like you are using her for her body or just to use her. Sometimes females want to stop the heartache before it begins. Tbh we all have different reasons for it.

Explanation:

Answer:

Explanation:

The Proton number for flourine will be 9

Then the mass number which will be protons+ neutrons will be 19

Argon which has a mass number of 40

to find the proton number of argon it will be 40-22=18

then the electron number will just be the same as proton number

then calcium the proton will be the same as electron so it will be 20

then neutrons will be mass number -proton number

which is 21

hope this helped

and pretty cool you use a mac

Answer:

Not exactly But you can take the slope of the curved portion and the slope of the flatline.

It wont do you much good since your working for absorbance but if you ever see something like a temperature change you can use the slope(s) to find freezing points/melting

Explanation:

If you need to submit a slope you could use a best fit which is just point to point or you could break it up like i mentioned

Answer:

0.623 moles of C2H6

Explanation:

Divide by Avogadro's number (6.022x10^23)

Answer:

Neutral

Explanation:

U need to count the number of protons and electrons and see which has more...

Here the atom is neutral cause the electrons and protons are equal and cancell  each other out.

I hope im right!!

Answer:

To find the overall charge subtract electrons from protons

So in this example its 0

Explanation:

4 Protons

4 electrons

so basically

+4-4=0

Answer:

0.74  g O

3

​

=

48

0.74

​

=0.0154 mol O

3

​

0.67 g NO=

30

0.67

​

=0.0223 mol NO

O

3

​

 is the limiting reagent and NO is in excess =0.0223−0.0154=0.007 mol

Thus, O

3

​

 taken =NO

2

​

 formed =0.0154 mol NO

2

​

                             =0.0154×46 g NO

2

​

Explanation:

Answer:

1.31 × 10^47

Explanation:

1 mol of Fe =

[tex]1 \: mol \: of \ fe = 6.02 \times 10 ^{23} \ \\ x \: mol \: offe \: = 7.88 \times {10}^{24} \\ \\ \\ so \: 7.88 \times {10}^{24} \div 6.02 \times {10}^{23} \\ \\ x = 1.31 \times {10}^{47} [/tex]

Answer:

An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. Ionic bonds form between a metal and a nonmetal. Covalent bonds form between two nonmetals

Answer:

the same as

Explanation:

that's what makes the most since to me but i may be wrong

Answer: The final concentration when 5 ml of a 2.5M copper sulphate solution is diluted to 750 ml is 0.017 M

Explanation:

According to the dilution law,

[tex]M_1V_1=M_2V_2[/tex]

where,  

[tex]M_1[/tex] = molarity of stock [tex]CuSO_4[/tex] solution = 2.5 M

[tex]V_1[/tex] = volume of stock [tex]CuSO_4[/tex]solution = 5 ml  

[tex]M_1[/tex] = molarity of diluted [tex]CuSO_4[/tex] solution = ?

[tex]V_1[/tex] = volume of diluted [tex]CuSO_4[/tex] solution = 750 ml

Putting in the values we get:

[tex]2.5\times 5=M_2\times 750[/tex]

[tex]M_2=0.017[/tex]

Therefore the final concentration when 5 ml of a 2.5M copper sulphate solution is diluted to 750 ml is 0.017 M

Answer:

It is liquid at most temperatures on Earth.

Answer:

1.00 mol

Explanation:

Step 1: Given data

Molecules of water: 6.02 × 10²³ molecules

Step 2: Calculate the number of moles corresponding to 6.02 × 10²³ molecules of water

In order to convert molecules to moles, we need a conversion factor. In this case, we will use Avogadro's number: there are 6.02 × 10²³ molecules in 1 mole of molecules.

6.02 × 10²³ molecules × 1 mol/6.02 × 10²³ molecules = 1.00 mol (we keep 3 significant figures)

Answer:

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