23 grams of sodium Chloride reacts with oxygen to produce Sodium oxide and how many moles of chlorine?

Question 3 options:

9.14 mol


4.98 mol


.20 mol


.87 mol

Answer:

mass of CO2 = 20.9 g

Explanation:

Given that:

mass of O2= 30.4 g

molar mass O2 = 32

\(number \ of \ moles = \dfrac{mass }{molar mass}\)

number of moles of O2 = 30.4 / 32

number of moles of O2 = 0.95 moles

The Volume of O2 = 2V

Using ideal gas equation:

PV = nRT

P × (2V) = 0.95 × R × T

PV = 0.475 RT  ----- (1)

For CO2;

The volume = V

Using ideal gas equation:

PV = nRT ---- (2)

Equating equation (1) and (2) together, we get:

0.475 RT = nRT

Dividing both sides by RT

(0.475 RT)/RT = (nRT)/RT

0.475 = n

Thus, the number of moles of CO2 = 0.475

Since mass = number of moles × molar mass

mass of CO2 = 0.475 × 44

mass of CO2 = 20.9 g

The answer is 1ml. The answer is 1ml because of calibration of this graduated cylinder

Answer:

1 mL

Explanation:

According to your definition, it is the difference between marked spaces divided by the # of spaces between marked values.

Difference between 2 marked values: 5 mL

# Of Spaces between marked values: 5

Calibration: 5 mL / 5 mL = 1 mL

Answer:

T₂ = 150 K

Explanation:

Given data:

Initial volume of gas = 804 mL

Initial temperature = 27°C (27+273=300 K)

Final temperature = ?

Final volume = 402 mL

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

T₂ = V₂T₁/V₁  

T₂ = 402 mL × 300 K / 804 mL

T₂ = 120,600 mL.K / 804 mL

T₂ = 150 K

Answer:

color

Explanation:

We need a color key to determine the pH of a solution using pH indicator paper.

pH is the measure of the hydrogen ions concentration in a solution which means the measure of acidity or alkalinity of the solution.

Generally, the pH scale ranges from 0 to 14.

A solution having a pH less than 7 is said to be acidic whereas a solution having a pH more than 7 is considered basic or alkaline

A solution having a pH equal to 7 is said to be neutral

pH indicators are weak acids that are found as natural dyes and that change color to show how many H⁺ (H3O⁺) ions are present in a solution.

The substance you are analyzing has an acidic, basic, or neutral pH value, which is calculated from the negative logarithm of H⁺ concentration.

The paper form of pH indicators is typically dipped into solutions and then removed for comparison against a color/pH key. Usually, the liquid form of pH indicators is added directly to solutions.

Thus, a color key or pH key is needed to determine the pH of a solution using pH indicator paper.

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Answer:

color key

creating a color key

have known PH values

A

Explanation:

hope this helps its all the answers in one

Answer:

Explanation:

is this graded??

Answer:

Sn²⁺ + Tl³⁺ → Sn⁴⁺ + Tl⁺

Explanation:

The Sn²⁺ is oxidized to Sn⁴⁺. Whereas Tl³⁺ is reduced to Tl⁺. The half-reactions are:

Sn²⁺ → 2e⁻ + Sn⁴⁺ (Oxidation, loosing electrons)

Tl³⁺ + 2e⁻ →Tl⁺ (Reduction, gaining electrons)

The sum of the reactions gives:

Sn²⁺ + Tl³⁺ + 2e⁻ → 2e⁻ + Sn⁴⁺ + Tl⁺

Subtracting the electrons in both sides of the reaction:

Answer:

4 joules

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Cya on the next one!

Explanation:

4 joules.

When it left the table it would have mgh potential energy that would have been converted to kinetic when it hit the floor. If the mass (m) was twice the energy would have been twice.

Answer:

zero

Explanation:

Answer:

Zero.

Explanation:

The overall formal charge in CF4 is zero.

The mass of hydrogen needed to produce 51.0 grams of ammonia is  ≈ 9.07 grams.

To determine the mass of hydrogen required to produce 51.0 grams of ammonia (NH3) using the Haber process, we need to calculate the stoichiometric ratio between hydrogen and ammonia.

From the balanced chemical equation:

3 H₂(g) + N₂(g) → 2 NH₃(g)

We can see that for every 3 moles of hydrogen (H₂), we obtain 2 moles of ammonia (NH₃).

First, we need to convert the given mass of ammonia (51.0 grams) to moles. The molar mass of NH₃ is 17.03 g/mol.

Number of moles of NH₃ = Mass / Molar mass

                     = 51.0 g / 17.03 g/mol

                     ≈ 2.995 moles

Next, using the stoichiometric ratio, we can calculate the moles of hydrogen required.

Moles of H₂ = (Moles of NH₃ × Coefficient of H₂) / Coefficient of NH₃

           = (2.995 moles × 3) / 2

           ≈ 4.493 moles

Finally, we can convert the moles of hydrogen to mass using the molar mass of hydrogen (2.02 g/mol).

Mass of H₂ = Moles × Molar mass

          = 4.493 moles × 2.02 g/mol

          ≈ 9.07 grams

Therefore, approximately 9.07 grams of hydrogen is needed to produce 51.0 grams of ammonia in the Haber process.

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Answer: C3H8 ——-

Hope this helps!

The empirical formula of the compound containing 81.7% carbon and 18.3% hydrogen is C₃H₈

Divide by their molar mass

C = 81.7 / 12 = 6.8

H = 18.3 / 1 = 18.3

Divide by the smallest

C = 6.8 / 6.8 = 1

H = 18.3 / 6.8 = 2.69

Multiply by 3 to express in whole number

C = 1 × 3 = 3

H = 2.69 × 3 = 8

Thus, the empirical formula of the compound is C₃H₈

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a)There are 0.45 moles of HNO₃ in the bottle.

b)Approximately 13 ml of the solution are required for the reaction.

a. To find the number of moles of HNO₃  in the bottle, we can use the formula:

moles = concentration (M) x volume (L)

Given that the concentration of the nitric acid solution is 6.0 M and the volume is 75.0 ml, we need to convert the volume to liters:

75.0 ml = 75.0 ml x (1 L/1000 ml) = 0.075 L

Now, we can calculate the number of moles:

moles = 6.0 M x 0.075 L = 0.45 moles

So, there are 0.45 moles of HNO₃  in the bottle.

b. To determine the volume of solution required for 5.00 g of HNO3, we need to use the molar mass of HNO3 to convert grams to moles:

moles = mass (g) / molar mass (g/mol)

Given that the molar mass of HNO₃  is 63.01 g/mol and the mass required is 5.00 g, we can calculate the number of moles:

moles = 5.00 g / 63.01 g/mol ≈ 0.079 moles

Now, we can use the concentration to find the volume:

volume (L) = moles / concentration (M)

volume (L) = 0.079 moles / 6.0 M ≈ 0.013 L

Finally, we need to convert the volume to milliliters:

volume (ml) = 0.013 L x (1000 ml/1 L) ≈ 13 ml

So, approximately 13 ml of the solution are required for the reaction.

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Answer:

To convert joules to calories, you can use the conversion factor:

1 calorie = 4.184 joules

To find out how many calories are in 4,180 joules, divide the given value by the conversion factor:

4,180 joules / 4.184 joules per calorie = 0.9 calories (approximately)

Therefore, there are approximately 0.9 calories in 4,180 joules.

Answer:

an oxygen ion with -2 charge

Explanation:

because a neutral oxygen atom has 8 electrons

and in the first orbit there'll be 2 electrons

and in the second orbit there'll be 6 electrons

but here there are 8 electrons in the outermost orbit and normally there'll be only 6

which means there are extra 2 electrons

and extra electrons means negatively charged

Answer:

6

Explanation:

Glucose has a chemical formula of: C6H12O6 That means glucose is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.

Answer: No.

Explanation: Clay is filled with minerals that often weather to create shale. Clay is usually found in muddy environments, so it traps.

Answer:

15 gram

Explanation:

mark me as BRAINLIST

Answer:

(mass of A) x (% of A) + (mass of B) x (% of B) + (mass of C) x (% of C)

Explanation:

got it right

Answer:

pertane the stronger the force the larger amount of energy needed to break of the connection between the molecules

Answer:

Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions. ... These organelles carry out tasks such as making proteins?, processing chemicals and generating energy for the cell

Answer: I absolutely love this question! Biology is so interesting, so I always love to answer the curiosity of others regarding biology, such as that!

Cells are simply the basic structures of all organisms, that are living, of course! Cells provide structure for the body, and they also take in nutrients that your body needs from food and they carry out important functions. These organelles carry out tasks such as making proteins, processing chemicals, and generating energy for the cell. Isn’t that cool?

Hope this helped! <3

Answer:

By observing the time between transits, we know the orbital period. Kepler's Third law can be used to determine the orbital radius of the planet if the mass of the orbiting star is known (R3=T2−Mstar/Msun, the radius is in AU and the period is in earth years)

hope this helps you out

The percent recovery would be 83.65%

The percent recovery of a recrystallization reaction can be mathematically deduced as:

Percent recovery = recovered amount/amount of original sample x 100%

In this case, the recovered amount = 2.61 g, and the original amount of sample = 3.12. Thus:

Percent recovery = 2.61/3.12 x 100%

                           = 83.65%

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Answer:

I only know the answer to the second one, The bond that occurs between two metal atoms is a metallic bond

Answer:

Try this for answer 3082.24

Answer:

\(m_{FeCl_2}=0.652gFeCl_2\)

Explanation:

Hello there!

In this case, according to the given information and the chemical reaction, whereby iron and hydrochloric acid react in a 1:2 mole ratio, it is firstly necessary to calculate the moles of iron (II) chloride from each reactant in order to figure out the limiting reactant:

\(n_{FeCl_2}=2.45gFe*\frac{1molFe}{55.845gFe}*\frac{1molFeCl_2}{1molFe}=0.0439molFeCl_2\\\\ n_{FeCl_2}=1.5L*0.25\frac{molHCl}{L} *\frac{1molHCl}{36.46gHCl}*\frac{1molFeCl_2}{2molHCl}=0.00514molFeCl_2\)

In such a way, we infer the maximum moles of FeCl2 product are yielded by HCl, for which it is the limiting reactant. Finally, we calculate the grams of product by using its molar mass as shown below:

\(m_{FeCl_2}=0.00514molFeCl_2*\frac{126.75gFeCl_2}{1molFeCl_2} \\\\m_{FeCl_2}=0.652gFeCl_2\)

Regards!

Answer:

138.889

Explanation:

Answer: A balanced equation for the given reaction is \(NiO(s) + CO \rightarrow Ni(s) + CO_{2}(g)\).

Explanation:

The reaction equation will be as follows.

\(NiO(s) + CO \rightarrow Ni(s) + CO_{2}(g)\)

Number of atoms on the reactant side is as follows.

Number of atoms on the product side is as follows.

Since number of atoms on both the reactant and product sides are equal. Hence, the reaction equation is balanced.

Thus, we can conclude that a balanced equation for the given reaction is \(NiO(s) + CO \rightarrow Ni(s) + CO_{2}(g)\).