which of the following has the most NaCl (MM=58.44)
a. 50 mL of 4.1 M solution
b. 10 mL of a 1.8 M solution
c. 1 mole
d. 9.35 grams ​

Answer:

N₂

Explanation:

Sodium is a larger molecule with a much higher molecular weight. However, 20g of N₂ would be a smaller amount of molecules than 20g of sodium due to how there are multiple nitrogen molecules.

2/3 * given mass of N₂ = mass of N₃

N₃ (Azide ion) given mass = 20g

Na = 20g

Masses of chemicals are equal

Na = 22.990g/mol

20g/22.990g/mol = 0.8699mol of Na

N₃ = 20g

N₃ = N g/mol x 3

N = 14.007 g/mol

14.007 x 3 = 42.021 g/mol

N₃ = 42.021g/mol

20g/42.021g/mol = 0.4759 mol of N₃

Notice how there are fewer moles of the Azide ion than the Sodium.

0.4759 moles of NaN₃ is produced

combine molecular weights:

42.021 + 22.990 = 65.011 g/mol

multiply by amount of moles of the limiting reactant:

0.4759 mol *65.011 = 30.942 g

Also, here is the balanced equation:

3N₂ + 2Na = 2NaN₃

The results are the same as the balanced equation.

Answer:

0.95 moles

Explanation:

I believe that this is the equation we are looking at since this is an acid- metal reaction, thus the products would be a salt and hydrogen gas (H₂):

Zn +2HCl → ZnCl₂ +H₂

The limiting reactant is the reactant that we do not have enough of for the reaction to continue. From the balanced equation, the mole ratio of Zn to HCl is 1: 2. This means that for every 1 mole of Zn, 2 moles of HCl is needed.

Let's calculate the number of moles of HCl needed to react with 0.95 moles of Zn.

Number of moles of HCl required

= 0.95 ×2

= 1.9 moles

Since we have 6.2 moles of HCl, HCl is in excess and thus Zn is the limiting reactant. For 6.2 moles of HCl, 3.1 moles of Zn would be needed but we only have 0.95 moles.

For every 1 mole of Zn, 1 mole of H₂ is produced.

Thus, since 0.95 moles of Zn has reacted,

number of moles of H₂ produced= 0.95 moles

Answer: B.     3-bromo-5-ethyl-2-methyloctane

Explanation:

The correct name of the compound as we can see is 3-bromo-5-ethyl-2-methyloctane.

The IUPAC nomeclature shows the standard,,  approved pattern for naming organic compounds. As a matter of fact it is intended to enable pratitioners to write the name of a compound from structure.

The correct name of the compound as we can see is 3-bromo-5-ethyl-2-methyloctane.

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Answer:

4Fe + 3O2 → 2Fe2O3

Answer:

Copper hydroxide is the correct answer.

Explanation:

Hope this helped Mark BRAINLIEST!!!

Answer: 15 L of [tex]N_2[/tex] gas will have same numer of molecules as 15L of [tex]CO_2[/tex] gas at the same temperature and pressure,

Explanation:

According to avogadro's law, equal moles of gases occupy equal volume at same conditions of temperature and pressure.

[tex]\text{Number of moles}=\frac{\text{Given volume}}{\text{Molar volume}}[/tex]

[tex]\text{Number of moles of} CO_2=\frac{15L}{22.4L/mol}=0.67mol[/tex]

[tex]1 mole of CO_2[/tex] contains=[tex]6.022\times 10^{23}[/tex]  molecules of [tex]CO_2[/tex]  

Thus 0.67 moles of [tex]CO_2[/tex] contains=[tex]\frac{6.022\times 10^{23}}{1}\times 0.67=4.03\times 10^{23}[/tex] molecules

Now molecules of [tex]N_2[/tex] = molecules of [tex]CO_2[/tex] = [tex]4.03\times 10^{23}[/tex]

[tex]6.023\times 10^{23}[/tex] molecules of [tex]N_2[/tex]  = 22.4 L

Now [tex]4.03\times 10^{23}[/tex]  molecules of [tex]N_2[/tex] = [tex]\frac{22.4}{6.023\times 10^{23}}\times 4.03\times 10^{23}=15L[/tex]

Answer:

A synthesis reaction is a type of reaction in which multiple reactants combine to form a single product. Synthesis reactions release energy in the form of heat and light, so they are exothermic. An example of a synthesis reaction is the formation of water from hydrogen and oxygen.

Explanation:

HOPE IT HELPS

THANKS

Answer:

solid=(s)

Explanation:

A solubility table may be something your class may want you to memorize. Where an aqueous (aq) solution is formed by a soluble compound dissolving in water, our solvent. So if we refer to this solubility table, it says phosphate (PO4) is usually insoluble, so in the reaction it won't break down in water and will stay as a solid (s). The only exceptions are group 1 alkali metals or ammonium (NH4+).

Answer:

2.95078 × 10^23

hope this helps you ☺️☺️

Answer:

Kc ≅ 100 (1 sig. fig.)

Explanation:

              2NH₃(g)       ⇄      N₂(g)   +   3H₂(g)

C(i)         3.00 mol/L             0                0

ΔC             -2x                       +x              +3x

C(eq)     0.600 mol/L            x                3x

3.00 - 2x = 0.600  =>  x = 3.00 - 0.600/2 = 1.2 mole/L

At equilibrium Kc = [N₂][H₂]³/[NH₃]² = (x)(3x)³/(3·1.2)² = (1.2)(3.6)³/(0.600)² = 155.52 (calculator)

Rounds to 1 sig. fig. based on given 3.00 moles NH₃(g)' Kc ≅ 100.

Answer:

bamboo is the biggest/tallest grass in the world

Answer:

Giant Bamboo

Explanation:

Giant bamboo, which can grow up to 151 feet tall, is the largest variety of grass.

Answer:

0.233M

Explanation:

M1 = 0.700M

V1 = 2L

V2 = 3L

M2 = ?

M1V1 = M2V2

(0.700)(2) = M2(3)

M2 = 0.233M

Answer:

supersaturated

Explanation:

During meiosis 1, the parent cell with double the normal amount of chromosomes, splits into two diploid cells (have enough chromosomes to survive). During meiosis 2, the two diploid cells each split into two haploid cells (have half the amount of chromosomes to survive). Meiosis ends with four haploid cells.

Answer:

its yellow

Explanation:

it's a constant law .... much explanation

from 0 to 9

we have

black .o

brown 1

red 2

orange 3

yellow 4

green 5

blue 6

violet 7

grey 8

white 9

Answer:

B

Explanation:

it will not be waterproof anymore

Answer:

C.4

Explanation:

Answer  b

Explanation:

Answer: B. Isotopes of the same element have the same number of neutrons and a different number of protons.

Explanation: Founders Educere answer.

Good luck my fellow summer school students, I love you all.

Please rate, thanks, & vote brainliest, I want a rank up already.

Answer:

Cell division is central to organism growth, reproduction and tissue repair.

Explanation:

Hope this helps!

Answer:

multiply, survive grow

Answer:

pH = 1.522

Explanation:

HCl + H20 -> Cl^(-) + H30^(+)

0.03M ____ ____

____ 0.03M 0.03M

[H30^(+)] = 0.03M

pH = - log([H30^(+)])

pH = - log( 0.03)

pH = 2 - log3

pH = 2- 0.47

pH = 1.522

The pH of the hydrogen chloride, HCl solution having a concentration of 0.03 M is 1.52

This is simply a measure of the acidity / alkalinity of a solution.

The pH measures the hydrogen ion concentration while the pOH measures the hydroxide ion concentration

Dissociation equation

HCl(aq) —> H⁺(aq) + Cl¯(aq)

From the balanced equation above,

1 mole of HCl contains 1 mole of H⁺.

Therefore,

0.03 M HCl will also contain 0.03 M H⁺

pH = –Log H⁺

pH = –Log 0.03

pH = 1.52

Learn more about pH:

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Answer:

Oceans, Fossil fuels, atmosphere

Answer:

The correct answer is - discovering or diagnosing the disease.

Explanation:

According to the question, this technology includes genetically modifying a common virus in order to destroy or kill the deadly brain tumor without affecting normal cells around the tumor, this technique is genetic engineering.

This technique can help in treating or curing the disease by killing the tumor cells and make them non-lethal. It can also prevent the tumor cells to grow and make them controlled. There is nothing mention related to diagnosing the disease in the question and it is not possible to find this tumor with help of such a technique.

Answer:

Prophase I

Sorry if wrong I was rushing !!

Answer:

I would recycle, reuse, and reduce the litter on this already hurt Earth.

Explanation:

Answer:

I can go out and help pick up garbage and i can recycle and not litter and i can reuse all the plastic water bottles i drink.

Explanation:

Im glad you care about mother earth to

Explanation:

1.False

2.False

3.True

4.True

5.False

The true statement about the Moon is: A. The Moon is always moving around Earth in a circle.

A Moon can be defined as the natural satellite of planet Earth that shines due to the Sun's reflected light, as it revolves around the Earth from west to east in 29½ days.

Generally, there are four (4) primary Moon phases and these are:

In conclusion, the true statement about the Moon is that it is always moving around Earth in a circle.

Read more on the Earth here: brainly.com/question/1286910