Alpha 1,6 branch points are formed in glycogen for what purpose?

To calculate the heating value of both solid and liquid fuels, one uses a bomb calorimeter. It is made up of a powerful steel shell called a bomb. It is composed of a base that holds the platinum cross.

What exactly is a solid defined as?

It seems evident what a solid is; a solid is typically thought of as hard and firm. However, closer examination makes the term less clear. For instance, a butter cube is unmistakably a solid since it becomes hard after being kept in a refrigerator. Having stayed on the

A crystalline solid is what?

A solid that has its component atoms and molecules (or occasionally ions) arranged in a crystalline structure microscopic structure is referred to as a crystal lattice (also referred as a crystal). A homogeneous microscopic structure known as a crystal lattice extends across every point of the crystalline solid.

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Answer:

C

Explanation:

C is the right answer for this question.

The pressure exerted by a confined gas is the result of Option b. gas particles colliding with the walls of the container.

The pressure exerted by a confined gas is the result of gas particles colliding with the walls of the container. When a gas is confined within a container, the gas particles are in constant motion, moving in random directions with varying speeds. As these gas particles move, they collide with each other and with the walls of the container.

When a gas particle collides with the walls of the container, it exerts a force on the surface. The collective effect of numerous gas particle collisions leads to a net force being exerted on the walls of the container. This force per unit area is what we call pressure.

The more frequently and vigorously the gas particles collide with the walls, the higher the pressure of the gas. Factors that influence gas pressure include the number of gas particles present, their average speed, and the volume of the container. Therefore, Option b is correct.

The question was incomplete. find the full content below:

The pressure exerted by a confined gas is the result of

a. gas particles colliding with each other

b. gas particles colliding with the walls of the container

c. nobody knows, it just is

d. gas particles taking up space in the container.

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Answer:

39.1

Explanation:

i took the test.

Answer:

dnidofoeosjnsieiddis8wiejie

Answer:

1.Reaction rate is how fast a chemical reaction proceeds.

2.Nature of the reaction, Pressure factor

, Solvent, Catalyst and inhibitors.

3.Physical change is a temporary change. A chemical change is a permanent change. A Physical change affects only physical properties i.e. shape, size, etc.

4. One example of the effect of temperature is the use of lightsticks or glowsticks.

5.When the particle size of a fixed mass of a solid reactant becomes smaller, the total exposed surface area becomes larger, the rate of reaction increases. an example could be ice and water when the atoms are stuck together a solid but all over the place as a liquid.

6. Sometimes a reaction depends on catalysts to do their job. In that case, changing the concentration of the catalyst can speed up or slow down the reaction. For example, enzymes speed up biological reactions, and their concentration affects the rate of reaction.

7.A catalyst is a chemical substance that affects the rate of a chemical reaction by altering the activation energy required for the reaction to proceed. For example, a catalyst could cause a reaction between reactants to happen at a faster rate or at a lower temperature than would be possible without the catalyst.

Explanation:

I hope this helps have a great day! :)

Based on the expression given in the question, X is the effective nuclear charge, and it increases down a group.

Effective nuclear charge is the net nuclear charge that an electron in an atom experiences, after subtracting the nuclear charge shielded by other electrons.

The effective nuclear charge is denoted by Zeff and can be calculated by subtracting the number of shielding electrons from the atomic number.

Therefore, based on the expression given in the question, X is the effective nuclear charge, and it increases down a group.

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Answer:

The responses to the given points can be defined as follows:

Explanation:

In point 1:

The answer is "No".

In point 2:

The mass of solute = The mass of precipitate \(= 0.56\ kg =0.56\ \times 1000 = 560 \ g\)

Calculating the solubility:

\(= \frac{\text{mass of solute in g}}{\text{volume of solution in ml}}\\\\ = \frac{560}{ 4000} \\\\ = 0.14 \ \frac{g}{ml}\)

The solution has a molarity of 0.125 M.

Molarity (M), which is determined by dividing the solute's mass in moles by the volume of the solution in liters, is the most often used unit to represent solution concentration: liters of solution/moles of solute equals M.

We must first determine how many moles of CuCl2 there are in one liter of solution in order to compute the molarity of the solution, which is given by:

moles of CuCl2 = 0.25 moles

volume of solution = 2.0 L

Molarity (M)=moles of solute/liters of solution

Molarity (M) = 0.25 moles / 2.0 L

Molarity (M) = 0.125 mol/L

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The solubility of the solutes in the solution will determine whether each of the solutions will be saturated or unsaturated at 50 degree celcius.

Saturated solutions are solutions which contains as much solute as they can dissolve at that temperature in the presence of undissolved solute.

An unsaturated solution is a solution which contains less solute than it can dissolve at that temperature.

The solubility of a solute determines whether its solution will be saturated or unsaturated at a given temperature.

Therefore, the solubility of the solutes in the solution will determine whether each of the solutions will be saturated or unsaturated at 50 degree celcius.

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The mass of the sodium borohydride that is added for the reaction is 0.035 g or 35 mg

Stoichiometry is the calculation of the quantitative relationships between the reactants and products in a chemical reaction, based on the balanced chemical equation.

We know that the reaction is a 1:1 reaction and we have to keep this in mind as we work.

Number of moles of 4‑t‑butylcyclohexanone = 143 * 10^-3 g/153 g/mol

= 0.0093 moles

Then;

Mass of the sodium borohydride = 0.00093 moles * 38 g/mol

= 0.035 g

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Answer:

A) vinegar-acidic Baking soda-basic Tomato juice-acidic Sugar-neutral.

Explanation:

Hello,

In this case, it is widely acknowledged that vinegar is a diluted and processed form of acetic acid which is of course acidic as well as tomato juice which has a pH of about 4.2. Baking soda, which is chemically known as sodium bicarbonate has a pH greater than 7, for that is reason it is basic. Finally, sugar, is known by its neutrality, for which its pH is about 7, for that reason it is neutral. In such a way, answer is A) vinegar-acidic Baking soda-basic Tomato juice-acidic Sugar-neutral.

Regards.

Answer:

hi, hope this help's

I think the correct answer from the choices listed above is option A. The correct classification of the substances above would be:

Vinegar - acidic - it is acetic acid so it must be acidic

Baking soda - basic - it is sodium bicarbonate, a chemical with a basic (high) pH

Tomato juice - acidic - this juice contains some organic acids

Sugar - neutral - does not dissociates or contribute H+ or OH- ions to a solution

The final concentration of the reactant of a first order reaction can be determined from the rate constant equation. The concentration of ammonium carbonate after 39 s will be 0.003 M.

Rate constant of a reaction is the rate of reaction when one molar concentration of the reactant is involved in the reaction. The expression for the rate constant k for first order reaction is :

k = 1/t ln (C0/Ct)

Where C0 be the initial concentration and Ct be the concentration after t seconds.

Given that C0 of ammonium nitrate = 0.957 M

rate constant = 0.196 /s

t = 39 s.

The concentration after 39 seconds is calculated as follows:

0.196 /s = 1/39s ln (0.957 M / Ct)

Ct = 0.957 / (ln⁻¹ (0.196 × 39))

    = 0.003 M.

Therefore, the concentration of ammonium carbonate after 39 seconds will be 0.003 M.

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The work done on the system for the reaction \(C2H5OH(1) + 3O2(g) → 2CO2(g) + 3H2O(0)\) at 25°C is 1240 kJ.

The work done on a system can be calculated using the Gibbs free energy equation: \(\beta ΔG = ΔH - TΔS,\) where ΔH is the enthalpy change, T is the temperature, and ΔS is the entropy change. The given enthalpy change is -1367 kJ, which represents the amount of heat released during the reaction.

To calculate the work done on the system at 25°C, we need to calculate the entropy change.

\(ΔS°\)(C₂H₅OH) = 160.7 J/K·mol

ΔS°(O₂) = 205.0 J/K·mol

ΔS°(CO₂) = 213.8 J/K·mol

ΔS°(H₂O) = 188.8 J/K·mol

Using the formula \(ΔS° = ΣnS°(products) - ΣmS°(reactants)\), we can calculate the entropy change for the reaction. This gives:

\(ΔS° = [2(213.8 J/K·mol) + 3(188.8 J/K·mol)] - [1(160.7 J/K·mol) + 1(205.0 J/K·mol) + 3(188.8 J/K·mol)]\)

\(ΔS° = -470.9 J/K·mol\)

Now we can calculate the work done on the system using the Gibbs free energy equation:

\(ΔG = ΔH - TΔS\)

\(ΔG = -1367 kJ - (25°C + 273.15)K × (-0.4709 kJ/K·mol)\)

\(ΔG = -1240 kJ/mol\)

The negative sign indicates that the work is done on the system, and its magnitude is 1240 kJ. Therefore, the work done on the system for the reaction \(C2H5OH(1) + 3O2(g) → 2CO2(g) + 3H2O(0)\) at 25°C is 1240 kJ.

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Answer: Catalyst - A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

Explanation:

The pressure of a gas that supports a 571 mm column of di‑n‑butyl phthalate is 31.85 torr.

According to the ideal gas equation

P × V = n × R × T

According to Stoichiometry n = m ÷ M or n m ÷ A

P × V = n × R × T

P × V = (m/M) × R × T

P × M = (m/V) × R × T

P × M = ρ  × R × T

For mercury

For C₁₆H₂₂O₄

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The organic compound di‑n‑butyl phthalate, C16H22O4(l), is sometimes used as a low‑density (1.046 g⋅mL−1) manometer fluid.31.85 torr is the pressure in torr of a gas that supports a 571 mm column of di‑n‑butyl phthalate. The density of mercury is 13.53 g⋅mL−1.

The ideal gas equation is represented as: PV = nRT.

In this equation, P refers to the pressure of the ideal gas, V is the volume of the ideal gas, n is the total amount of ideal gas that is measured in terms of moles, R is the universal gas constant, and T is the temperature.

By an ideal gas equation

P × V = n × R × T

Where,

n = number of moles (mol)

R = gas constant

The value of R differs depending on the units used

T = temperature

P = pressure

V = volume

According to Stoichiometry

n = m ÷ M or n m ÷ A

Where,

m = mass (grams)

M = molecular mass (g/mol)

A = atomic mass (g/mol)

A for mercury (Hg) = 200.59 g/mol

A to C = 12 g/mol

A for H = 1 g/mol

A for O = 16 g/mol

M for C₁₆H₂₂O₄

= (16 × 12) + (22 × 1) + (4 × 16)

= 192 + 22 + 64

= 278

P × V = n × R × T

P × V = (m/M) × R × T

P × M = (m/V) × R × T

The formula for density

ρ = m/V

ρ = density

P × M = ρ  × R × T

For mercury

For 1 mm mercury, the pressure is 1 torr

h = 571 mm

P mercury = 571 mm × 1 torr

P mercury = 571 torr

ρ = 13.53 g/mL

P × M = ρ  × R × T

P × A = ρ  × R × T

571 × 200.59 = 13.53  × R × T

RT = 114,536.89 / 13.53

RT = 8,465.402 torr mL mol⁻¹

For C₁₆H₂₂O₄,

RT = 8,465.402 torr mL mol⁻¹ because same condition as mercury

ρ = 1.046 g/mL

P × M = ρ  × R × T

P × 278 = 1.046  × 8,465.402

P = 8,854.81 / 278

P = 31.85 torr

Thus, 31.85 torr is the pressure in torr of a gas that supports a 571 mm column of di‑n‑butyl phthalate. The density of mercury is 13.53 g⋅mL−1.

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As the molality of the saltwater solution increases, the students are likely to observe that the freezing point of the solution decreases. Molality is a measure of the concentration of a solute in a solvent, and it is defined as the number of moles of solute per kilogram of solvent. Increasing the molality of a saltwater solution means adding more salt to a given amount of water, which increases the concentration of the solute and therefore lowers the freezing point of the solution.

A vapor pressure of a liquid tells us how easily the liquid will evaporate. The temperature where vapor pressure is equal to the pressure is pushing down is also the liquid's boiling point.

Answer:

\(\large \boxed{1.10 \times 10^{-3}\text{ mol/L}}\)

Explanation:

1. Concentration of SO₄²⁻

SrSO₄(s) ⇌ Sr²⁺(aq) +SO₄²⁻(aq); Ksp = 3.44 × 10⁻⁷

                   0.0150          x

\(K_{sp} =\text{[Sr$^{2+}$][SO$_{4}^{2-}$]} = 0.0150x = 3.44 \times 10^{-7}\\x = \dfrac{3.44 \times 10^{-7}}{0.0150} = \mathbf{2.293 \times 10^{-5}} \textbf{ mol/L}\)

2. Concentration of Pb²⁺

PbSO₄(s) ⇌ Pb²⁺(aq) + SO₄²⁻(aq); Ksp = 2.53 × 10⁻⁸

                        x          2.293 × 10⁻⁵

\(K_{sp} =\text{[Pb$^{2+}$][SO$_{4}^{2-}$]} = x \times 2.293 \times 10^{-5} = 2.53 \times 10^{-8}\\\\x = \dfrac{2.53 \times 10^{-8}}{2.293 \times 10^{-5}} = \mathbf{1.10 \times 10^{-3}} \textbf{ mol/L}\\\\\text{The concentration of Pb$^{2+}$ is $\large \boxed{\mathbf{1.10 \times 10^{-3}}\textbf{ mol/L}}$}\)

The formal Positive sign convention for, work done by the system and heat transfer into the system. The Negative sign convention for heat transfer out of the system and work done to the system.

Thermodynamics is a special branch of chemistry that deals with concepts of heat, temperature and work and interconversion of heat into other forms of energy. Sign convention for heat : Heat transfer into the system is positive and heat transfer from the system is negative. In other words, all heat exchanges that increase the energy of a system are positive and all heat exchanges that decrease the energy of a system are negative. Sign rule for work :

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Complete question:

Following the formal sign convention, please match the heat and work interactions with their appropriate signs:Positive or Negative

1) work done by the system

2) heat transfer into the system

3) heat transfer out of the system

4) work done to the system

Answer: 1.3 L

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

To calculate the volume for given molarity, we use the equation:

\(\text{Molarity of the solution}=\frac{\text{moles of solute}}{\text{Volume of solution in L}}\)

\(6.8M=\frac{8.6mol}{\text{Volume of solution in L}}\)

\(\text{Volume of solution in L}=1.3\)

Thus the volume in Liters is 1.3

Answer:

reactants /products, products / reactants, opposite / inverse

I can't exactly tell how many underscores there are.

Explanation:

This is biology, but it does contain chemistry.

Find the volume of oxygen that reacts with 1.12 L of NH3.

\(4NH {\tiny{3}} + 5 0{ \tiny{2 }} \: \: -> \: 4 NO + 6H{ \tiny{2}}O\)

0 0.896 L

O 1.4L

0 1.12

0 561

\(4NH {\tiny{3}} + 5 0{ \tiny{2 }} \: \: -> \: 4 NO + 6H{ \tiny{2}}O\)

4 moles of NH3 reacts with 5 moles of O2

so:-

1 mole of NH3 reacts with 5/4 moles of O2

Number of moles given of NH3 :-\( \frac{1.12}{22.4} moles\)

For given moles :-

\( \frac{1.12}{22.4} mole \: of \: NH { \tiny3 }\: reacts \: with \: \frac{5}{4} \times \frac{1.12}{22.4} moles \: of \: O2 \)

So numbers of moles of O2 required:-

\( \frac{5 \times 112}{100 \times 4 \times 22.4} \\ = \frac{5 \times \cancel{112} {}^{ \: \: 28} }{100 \times \cancel{ 4} \times 22.4} \\ = \frac{ \cancel5 \times \cancel{28} {}^{14} }{{\cancel{100} {}^{10} }\times 22.4} = \frac{1.4}{22.4} moles\)

To convert it into volume of gas in lts just multiple it with 22.4 lts :-

\( \frac{1.4}{22.4} \times 22.4 \: \: lts \\ \frac{1.4}{ \cancel{22.4}} \times \cancel{22.4} \: \: lts \\ 1.4lts \: is \: your \: answer\)

Using Newton's second law, the car is experiencing a net force parallel to the banked curve such that

\(mg \sin(\theta) = \dfrac{mv^2}r \implies \sin(\theta) = \dfrac{v^2}{rg}\)

where \(v\) is the tangential speed of the car and \(r\) is the radius of the curve. Solve for \(\theta\) :

\(\sin(\theta) = \dfrac{\left(61.0\frac{\rm m}{\rm s}\right)^2}{(1860\,\mathrm m)g} \approx 0.204 \implies \theta = \sin^{-1}(0.204) \approx \boxed{11.8^\circ}\)

The balancing of chemical equations is based on the law of conservation of mass.

How could a chemical process be made to balance out? Which integers can be changed, and which cannot?

When an equation is balanced, the coefficients can only be changed (the numbers in front of molecules or atoms).

The coefficients are indicated by the numerals in front of the molecule. Subscripts are the smaller numerals found following atoms. These cannot be changed while balancing chemical equations!

How is a chemical equation brought to equilibrium?

the algebraic balancing technique. Chemical equations can be balanced by assigning algebraic variables as stoichiometric coefficients to each species in the unbalanced chemical equation.

Equations in mathematics are used to calculate the values of each of these variables

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Answer:

10%

Explanation:

I think you are looking for mass percent concentration so...

concentration = (mass of solute / total mass of solution) x 100

concentration = (10g of NaCl / (10g of NaCl + 90g of H2O) solution) x 100

concentration = 0.1 x 100

concentration = 10%

Answer:

Concentration of solution is 0.1.

Explanation:

Given data:

Mass of NaCl = 10 g

Mass of water = 90 g

Concentration of solution = ?

Solution:

Formula:

Concentration = mass of solute / total mass of solution

Now we will calculate the total mass of solution:

Total mass of solution = mass of solute + mass of solvent

Total mass of solute = 10 g + 90 g

Total mass of solute = 100 g

Now we will determine the concentration,

C = 10 g/100 g

C = 0.1

The total gaseous mixture is 4.48 g.

The total gaseous mixture can be calculated using the ideal gas law: PV = nRT.

First, we need to convert the temperature to Kelvin: 27.0°C + 273.15 = 300.15 K.

Next, we can use the ideal gas law to calculate the number of moles of each gas:

For He: n = (1.12 atm) (2.00 L) / (0.08206 L·atm/mol·K) (300.15 K) = 0.0906 mol

For Ar: n = (4.53 g) / (39.95 g/mol) = 0.113 mol

The total number of moles of gas in the mixture is then:

n(total) = n(He) + n(Ar) = 0.0906 mol + 0.113 mol = 0.204 mol

Finally, we can calculate the total mass of the mixture:

m(total) = n(total) × M(avg)

where M(avg) is the average molar mass of the mixture, which can be calculated as:

M(avg) = (M(He) + M(Ar)) / 2 = (4.003 g/mol + 39.95 g/mol) / 2 = 21.98 g/mol

Thus,

m(total) = 0.204 mol × 21.98 g/mol = 4.48 g

Therefore, The total weight of the gaseous mixture is 4.48 g.

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