Nicotine can be made when the following ammonium salt is treated with Na2CO3. Draw a stepwise mechanism for this reaction. N N N nicotine CH3 NH2CH3 Na2CO3 NaHCO3 NaBr

Find your answer in the explanation below.

Explanation:

PV = nRT is called the ideal gas equation and its a combination of 3 laws; Charles' law, Boyle's law and Avogadro's law.

According to Boyle's law, at constant temperature, the volume of a gas is inversely proportional to the pressure. i.e V = 1/P

From, Charles' law, we have that volume is directly proportional to the absolute temperature of the gas at constant pressure. i.e V = T

Avogadro's law finally states that equal volume of all gases at the same temperature and pressure contain the same number of molecules. i.e V = n

Combining the 3 Laws together i.e equating volume in all 3 laws, we have

V = nT/P,

V = constant nT/P

(constant = general gas constant = R)

V = RnT/P

by bringing P to the LHS, we have,

PV = nRT.

Q.E.D

Answer:

C. C and Pb

Both are in group IV elements.

Answer:

Chlorine gas.

Explanation:

Hello!

In this case, the undergoing chemical reaction is:

[tex]2Na+Cl_2\rightarrow 2NaCl[/tex]

Thus, given the moles of reacting both sodium and chlorine, we compute the moles of sodium chloride yielded by each reactant by considering the 2:2 and 1:2 mole ratios:

[tex]n_{NaCl}^{by\ Na}=6.70molNa*\frac{2molNaCl}{2molNa}=6.70molNaCl \\\\n_{NaCl}^{by\ Cl_2}=3.20molCl_2*\frac{2molNaCl}{1molCl_2}=6.40molNaCl[/tex]

Thus, since chlorine yields less moles of sodium chloride, we infer it is the limiting reactant.

Best regards!

This is displacement reaction.

Answer:

A) 6.023*10^23

B)6.023*10^22

Explanation:

AVAGADRO it would take nearly 1 mole of chalk so

1 mole of any substance contain 6.023*10^23 particles.

AVAGADRO it would take nearly 1 mole of ink to print so

1 mole of any substance contain 6.023*10^23 particles.

Answer:

C: The actual yield depends on the reaction conditions, but the theoretical yield varies only with reactant amounts

Explanation:

Looking at the options, the correct one is Option C because the actual yield usually depends on the conditions of the reaction, while the theoretical yield usually varies with only the amount of reactant.

Answer: a

Explanation: the smoker actually exhales the sidestream smoke

Answer:1

Explanation: friction is showing us how in the past

Answer:

independent varible

Explanation:

"Spherical: Bacteria shaped like a ball are called cocci, and a single bacterium is a coccus. Examples include the streptococcus group, responsible for “strep throat.”

Rod-shaped: These are known as bacilli (singular bacillus). ...

Spiral: These are known as spirilla (singular spirillus). " - Medical News Today

Answer:

2, 19, 12 and 14 are the coefficients.

Answer:regular variation in magnitude or position around a central point. Or movement back and forth at a regular speed

Explanation:

Answer:

movement back and forth at a regular speed

Explanation:

they be oscillatin

Answer:

Li+, C4+, O2-, and then F- They're written in decreasing ionic size.

Explanation:

Ionic size means the same thing as ionic radius.  Furthermore, Ionic radius is the distance away from the central atom. Ionic radius increases going from top to bottom and decreases across the periodic table.

Lithium is in the 1st family/group with a charge of +1.  So it has the biggest ionic radius.

Carbon is in the 4th family/group with a charge of +4. So it has a smaller ionic radius than Lithium.

Oxygen is in the 6th family/group with a charge of -2.  So it has a smaller ionic radius than Carbon.

Lastly, Fluorine is in the 7th family/group with a charge of -1. So it has a smaller ionic radius than Oxygen.

Answer:

9. B different sounds the dog is exposed to

10. control, dependent, control, control, independent

Explanation:

Answer:

normal flora useful

Explanation:

protect the skin

Answer:

+3

Explanation:

Chlorine is anion with a -1 charge. But they are three chlorine atoms.

-1 * 3 = -3

So they have a -3 charge.

So to balance the compound, the nickel has to be a cation with a +3 charge.

-3 + 3 = 0

Furthermore, a chemical bond always has a 0 charge. Remember that.

Hope it helped! Rate my answer a 5 star if correct.

Answer:

Continential

Explanation:

foggy, overcast, and sunny are all examples of weather

Answer:

Fewer bubbles will be produced because of fewer collisions of reactant molecules

Explanation:

As the solid dissolves into the solution after the liquid has been vigorously bubbled, if the temperature of the liquid is reduced a little, what will happen is that fewer bubbles will be produced as a result of lesser amount of collisions occurring between the reactant molecules

Answer:

A campfire is an example of entropy. The solid wood burns and becomes ash, smoke and gases, all of which spread energy outwards more easily than the solid fuel. Ice melting, salt or sugar dissolving, making popcorn and boiling water for tea are processes with increasing entropy in your kitchen.

Explanation:

If this helped you, the please mark me the brainliest.

Answer:

Speed

Explanation:

That is what I believe the word to the definition, How far something moves in a specific amount of time, but you'd have to providea picture of the list of words for me to be sure...

Answer:

Exfoliation involves the removal of the oldest dead skin cells on the skin's outermost surface. Exfoliation is involved in all facials, during microdermabrasion or chemical peels. Exfoliation can be achieved by mechanical or chemical means.

Explanation:

I did copy off internet!

:P

Answer:

9.48 L.

Explanation:

Hello!

In this case, as the problem mentions a long way to solve it, we are going to apply it because it can provide the answer more rapidly; thus, considering that 112 km are required, 1 mile equals 1.609 km and 1 gallon equals 3.785 liters, we can set up the proportional factor as shown below:

[tex]112km*\frac{1mi}{1.609 km}*\frac{1gal}{27.8mi}*\frac{3.785L}{1gal}[/tex]

Whereas km, mi and gal are cancelled out as it turns out in L; therefore the required liters are:

[tex]9.48L[/tex]

Best regards!

Answer:

[tex]3Li_2SO_4+2K_3PO_4\rightarrow 2Li_3PO_4+3K_2SO_4[/tex]

Explanation:

Hello!

In this case, when lithium sulfate and potassium phosphate solutions are mixed to yield lithium phosphate and potassium sulfate, the following chemical equation comes up:

[tex]Li_2SO_4+K_3PO_4\rightarrow Li_3PO_4+K_2SO_4[/tex]

However, as atoms are not balanced we apply the inspection method to obtain:

[tex]3Li_2SO_4+2K_3PO_4\rightarrow 2Li_3PO_4+3K_2SO_4[/tex]

Best regards!

Explanation:

they are closer and made of gas

B. 0.21 mol

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Step 1: Define

1.25 × 10²³ atoms Ca

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

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

0.207572 mol Ca ≈ 0.208 mol Ca

Answer:

Granules of the hair cortex.

Explanation:

Answer:

It is banding for plato / edmentum

Explanation:

I took notes in the class and in my notes it says -

Human hairs have consistent coloring, whereas animal hair coloring may change radically. This radical change is called banding.

The pH = 2.41

Given

5.0% by mass solution of acetic acid

the density of white  vinegar is 1.007 g/cm3

Required

pH

Solution

Molarity of solution :

[tex]\tt M=\dfrac{\%mass\times \rho\times 10}{MW~acetic~acid}\\\\M=\dfrac{5\times 1.007\times 10}{60}\\\\M=0.839[/tex]

Ka for acetic acid = 1.8 x 10⁻⁵

[H⁺] for weak acid :

[tex]\tt [H^+]=\sqrt{Ka.M}[/tex]

Input the value :

[tex]\tt [H^+]=\sqrt{1.8\times 10^{-5}\times 0.839}\\\\(H^+]=0.00388=3.88\times 10^{-3}\\\\pH=3-log~3.88=2.41[/tex]

White vinegar is a 5.0% by mass solution of acetic acid in water and if the density of white vinegar is 1.007 g/cm³ then the pH of solution is 4.8.

pH of any solution will be calculated as:

pH = - log[H⁺], where

[H⁺] = concentration of H⁺ ions

In this question we will calculate the concentration of H⁺ ions as:

[H⁺] = √Ka.M, where

Ka = acid dissociation constant for acetic acid = 1.8 x 10⁻⁵ (known)

M is molarity and this can be calculated as:

M = (% mass × density × 10) / Molar mass of acid

Given that,

% mass = 5.0% by mass solution of acetic acid

density = 1.007 g/cm³

Molar mass of acetic acid = 60

Now putting all these values on the above equation, we get

M = (5 × 1.007 × 10) / 60 = 0.839

Now, we calculate the concentration of H⁺ ions by putting values on that equation as:

[H⁺] = √(1.8 x 10⁻⁵)(0.839)

[H⁺] = 1.5 x 10⁻⁵

So, pH of the solution will be calculated as:

pH = -log(1.5 x 10⁻⁵)

pH = -(-4.8)

pH = 4.8

Hence, pH is 4.8.

To know more about pH, visit the below link:

https://brainly.com/question/10313314

Answer:

Density = 2.09×10⁻³ g/mL

Explanation:

We solve this problem from the Ideal Gases Law.

P . V = n . R . T

We know that in STP conditions 1 mol of any gas occupies 22.4 L. So we can compare both situations.

22.4 L = 22400 mL

(P₁ . V₁) / T₁ = (P₂ . V₂) / T₂

We make some conversions:

97°C + 273 = 370 K

755 mmHg . 1 atm / 760mmHg = 0.993 atm

We replace data: (1 atm . 22400 mL) / 273 K = (0.993 atm . V₂) / 370 K

((1 atm . 22400 mL) / 273 K) . 370K = 0.993 atm . V₂

V₂ = 30359 atm . mL / 0.993 atm → 30573 mL

Under those conditions (97 °C and 755 mm Hg) 1 mol of gas is contained in 30573 mL.

We determine the amount of gas: 1 mol of SO₂ weighs 64.06g

Density = m/V → 64.06 g / 30573 mL = 2.09×10⁻³ g/mL