Most modern medications are given in doses of milligrams. Thyroid medications, however, are typically given in doses of micrograms. How many milligrams are in a dose labeled 125 µg? View Available Hint(s) Most modern medications are given in doses of milligrams. Thyroid medications, however, are typically given in doses of micrograms. How many milligrams are in a dose labeled 125 µg? 1.25 x 105 mg 0.125 mg 1.25 x 10?4 mg 1.25 x 102 mg

Heat transfer is the movement of thermal energy from a temperature that is higher to one that is lower.

The energy that exists in a system and controls its temperature is known as thermal energy. Heat is thermal energy in motion. Thermodynamics is a comprehensive field of physics that examines how heat and work are transferred between diverse systems.

The energy that results from atoms and molecules moving around within a substance is known as thermal energy, often known as heat. When these particles move more quickly, heat is produced. Geothermal energy is the earth's heat energy. Energy held within motion is referred to as motion energy.

To know more about thermal energy visit:

https://brainly.com/question/18989562

#SPJ1

Ionization energy of the following elements in the decreasing order: Iodine>Tellurium>Lead>Polonium.

The ionization energy measures an element's ability to participate in chemical processes that call for the creation of ions or the donation of electrons. It is often connected to the type of chemical bonds that exist between the components in the compounds they form. Across the periodic table, the first ionization energy fluctuates in a predictable manner. In groups, the ionization energy drops while rising from left to right during the course of a period.

Learn more about Ionization energy:

brainly.com/question/28385102

#SPJ4

The aromatic ring in phenacetin exhibits an AB pattern because it has two mutually coupled nuclei that are unrelated to other protons or whose shift differences is equal to the coupling constant.

Deshielding occurs for the ring protons of benzene due to their larger chemical shift (7.3 ppm vs. 5.6 ppm for the vinylic protons in cyclohexene) and the fact that the magnetic field induced outside of the ring is the same orientation as that of the external field.

Protons are present in benzene at levels of 6–8 ppm.This value is larger than that of the protons in those other hydrocarbon like alkanes & alkenes because of the aromatic ring's deshielding effect.

To know more about protons visit:

https://brainly.com/question/1252435

#SPJ1

If an equation includes 7(CrO₄)₂, the numbers of Cr's and O's atoms that are there are 14 and 56 respectively.

The number of atoms present in a chemical compound can be calculated by multiplying the subscript of the particular element by any coefficient.

According to this question, 7 moles of chromate with the chemical formula; (CrO₄)₂ is given. The number of oxygen and chromium atoms in this compound can be calculated as follows:

Learn more about no of atoms at: https://brainly.com/question/14190064

#SPJ1

Answer:

Kinetic energy might transferred from one particle to another during an elastic collision, but  i don't think that there is going to be any change in the total energy of the colliding particles. Because there are no forces of attraction or repulsion between gas particles .

Explanation:

Answer:

The correct answer is -

takes place in the Sun

plays a role in the production of essentially all elements heavier than helium

releases large amounts of energy

Explanation:

Fusion reaction takes place when two or more small atomic nuclei come in close proximation for a longer time so the nuclear force pulling them together and form into heavier molecules than helium and releases a huge amount of energy by this process.

A great example of this fusion reaction is the sun where nuclear fusion takes place inside the core of the sun and result in a huge amount of release as it is an exothermic reaction.

Answer:

Explanation

EDGE2021

Answer:

  0.0480 M

Explanation:

The reaction is ...

  H₂SO₄ + 2NaOH ⇒ Na₂SO₄ +2H₂O

That is, 2 moles of NaOH react with each mole of H₂SO₄. Then the molarity of the H₂SO₄ is ...

  moles/liter = (0.186 M/2)(12.9 mL)/(25.0 mL) ≈ 0.0480 M

Answer:

0.50 Molar or 0.50 Mol/L

Explanation:

Molarity = \(\frac{Moles of Solute}{Litres of solution}\)

Molarity = n / V

Given: Volume of solution(V): 1.75 Litres

Moles of solute(n): 0.877

Substituting values,

Solution:

Molarity = \(\frac{0.877}{1.75}\)

Molarity = 0.50 Molar (rounded off to the nearest decimal place)

∴ Molarity = 0.50 Molar/ 0.50 Mol/L

Answer:

Explanation:

A molecule is a basic unit of a chemical substance made up of two or more atoms that are bonded together. A compound, on the other hand, is a substance made up of two or more different elements that are chemically bonded together.

Every compound is a molecule because it is made up of at least two chemically bonded atoms, but not every molecule is a compound because a molecule can be made up of the same type of atoms and not be a compound.

For example, molecular oxygen (O2) is made up of two oxygen atoms, but it is not a compound because both atoms are the same element. On the other hand, water (H2O) is a compound made up of hydrogen and oxygen atoms.

A Brainly star would be appreciated if it helped you!

The beta decay of lead-211 can be represented by the nuclear equation ^211Pb → ^211Bi + β^- + ν¯, where ^211Pb represents the lead-211 nucleus, ^211Bi represents the bismuth-211 nucleus, β^- represents the electron emitted, and ν¯ represents the antineutrino emitted.

The beta decay of lead-211 can be represented by the following nuclear equation:

^211Pb → ^211Bi + β^- + ν¯

In this equation, a beta particle (β^-) and an antineutrino (ν¯) are emitted from the nucleus of lead-211 (^211Pb), resulting in the formation of bismuth-211 (^211Bi).

Beta decay is a type of radioactive decay in which a nucleus emits a beta particle and an antineutrino or a positron and a neutrino. In the case of lead-211, it undergoes beta minus (β^-) decay, which means that a neutron in the nucleus is converted into a proton, and an electron (β^-) and an antineutrino (ν¯) are emitted.

Lead-211 has 82 protons and 129 neutrons in its nucleus. During beta decay, one of the neutrons in the nucleus is converted into a proton. This increases the atomic number of the nucleus by 1, resulting in the formation of bismuth-211, which has 83 protons and 128 neutrons.

The electron (β^-) emitted during beta decay is produced in the nucleus when a neutron breaks down into a proton, an electron, and an antineutrino. The electron is ejected from the nucleus at high speed due to the conversion of a neutron into a proton and must carry away the energy and momentum difference.

The antineutrino (ν¯) is a subatomic particle that is emitted from the nucleus during beta decay. It has no electrical charge, very little mass, and interacts very weakly with matter. The antineutrino carries away energy and momentum and helps to ensure that the total energy and momentum of the system are conserved during the decay process.

For more question on beta decay click on

https://brainly.com/question/13174032

#SPJ11

Answer: The oxidation number P in Ca3(PO4)2 is +1

Explanation:

To find the oxidation number of P in Ca3(PO4)2, we need to use the following rules:

The oxidation number of an atom in its elemental form is always 0.

The oxidation number of a monatomic ion is equal to its charge.

The sum of the oxidation numbers of all atoms in a neutral compound is 0.

The sum of the oxidation numbers of all atoms in a polyatomic ion is equal to the charge of the ion.

Let's start with Ca3(PO4)2:

The oxidation number of Ca is +2. This is because Ca is an alkaline earth metal and tends to lose 2 electrons to form a 2+ ion.

The oxidation number of O is -2. This is a common rule for oxygen in most compounds.

We don't know the oxidation number of P yet, so let's call it x.

Now we can use rule 3 to set up an equation:

3(2+) + 2x + 4(-2) = 0

Simplifying, we get:

6 + 2x - 8 = 0

2x - 2 = 0

2x = 2

x = +1

Therefore, the oxidation number of P in Ca3(PO4)2 is +1.

More about oxidation numbers:

https://brainly.com/question/27239694

https://brainly.com/question/15461660

Answer:

Q = 7.7 KJ

Explanation:

The complete question carries the following data:

Specific Heat Capacity of Liquid State = C(l) = 1.45 J/mol.°C

Specific Heat Capacity of Gaseous State = C(g) = 0.65 J/mol.°C

Boiling Temperature = Tb = 88.5°C

Heat of Vaporization = ΔH(vap) = 1.23 KJ/mol

Now, first we calculate the heat required (Q₁) to raise he temperature to boiling point:

Q₁ = n*C(l)*ΔT₁

where,

n = no. of moles = 5.31 mol

ΔT₁ = Temperature difference from 40°C to Tb = 88.5°C - 40°C = 48.5°C

Therefore,

Q₁ = (5.31 mol)(1.45 J/mol.°C)(48.5°C)

Q₁ = 373.4 J = 0.37 KJ

Now, we calculate the heat required (Q₂) to change its phase:

Q₂ = nΔH(vap)

Q₂ = (5.31 mol)(1.23 KJ/mol)

Q₂ = 6.53 KJ

Now, we calculate the heat required (Q₃) to raise he temperature to boiling point:

Q₃ = n*C(g)*ΔT₃

where,

n = no. of moles = 5.31 mol

ΔT₃ = Temperature difference from Tb to 113°C = 113°C - 88.5°C = 24.5°C

Therefore,

Q₃ = (5.31 mol)(0.65 J/mol.°C)(24.5°C)

Q₃ = 84.5 J = 0.08 KJ

So, the total heat required to convert 5.31 mol of this pure substance from a liquid at 40°C to a gas at 113°C is:

Q = Q₁ + Q₂ + Q₃

Q = 0.37 KJ + 6.53 KJ + 0.08 KJ

Q = 7.7 KJ

The total heat required to convert the pure substance from liquid to gas at the given temperature is 814 J.

The given parameters;

The total heat required to convert the pure substance from liquid to gas at the given temperature is calculated as follows;

\(Q = nc_l \Delta \theta + nc_g \Delta \theta \\\\ \Delta \theta = (113 - 40) = 73^0 C \\\\Q = (5.31 \ mol \times 1.45 \frac{J}{mol .\ ^0C} \times 73\ ^0C) + (5.31 \ mol \times 0.65 \frac{J}{mol .\ ^0C} \times 73 \ ^0C)\\\\Q = 814 \ J\)

Thus, the total heat required to convert the pure substance from liquid to gas at the given temperature is 814 J.

"Your question is not complete, it seems to be missing the following information;"

How much heat would be required to convert 5.31 mol of a pure substance from a liquid at 40.0°C to a gas at 113.0°C? (molar heat capacity of liquid, C(l) is 1.45 J/mol.⁰C and molar heat capacity of gas, C(g) is 0.65 J/mol.⁰C).

Learn more here:https://brainly.com/question/8428922

Answer:

1.97kJ of energy are released.

Explanation:

The dissolution of LiOH in water is:

LiOH(s) → Li⁺(aq) + OH⁻(aq) ΔH = -23.6kJ

That means, when 1 mole of LiOH is dissolved, there are released (Because of the - in the enthalpy) 23.6kJ

2.0 g of LiOH (Molar mass: 23.95g/mol) are:

2.0g LiOH × (1 mol / 23.95g) =0.0835 moles of LiOH.

As 1 mole of LiOH release 23.6kJ, 0.0835moles release:

0.0835moles × (-23.6kJ / 1mole) = 1.97kJ of energy are released

Answer:

CH4 (g) and O2 (g) are both in the gaseous state, while CO2 (g) and H2O (g) are also in the gaseous state.

In the above reaction, the reactants are in the gaseous state, and the products formed are also in the gaseous state.

Every compound in a chemical reaction can be in any state of matter like solid, liquid, or gas. In the reaction of methane and oxygen, the initial state of the reactants is in the gaseous form. The chemical reaction of methane and oxygen is given by the equation CH4 (g) + 2 O2 (g) -> CO2 (g) + 2 H2O (g).Here, methane and oxygen are the reactants, and carbon dioxide and water are the products. Methane (CH4) and oxygen (O2) react together in the presence of a spark or heat to produce carbon dioxide (CO2) and water (H2O).In the reaction, the methane gas combines with oxygen gas, which causes the release of heat energy and forms carbon dioxide gas and water vapor. Methane gas is a colorless and odorless gas that burns cleanly and is one of the primary components of natural gas.

The oxygen gas required for the reaction is available in the atmosphere. Carbon dioxide is a colorless gas with a faint odor and taste and is a significant component of the Earth's atmosphere. Water is a colorless, odorless, and tasteless liquid that is essential to life.The state of matter of every compound in a chemical reaction can change depending on the conditions in which the reaction occurs. For instance, a substance that is in the solid state at a lower temperature may melt into a liquid or boil into a gas at a higher temperature. Similarly, a liquid may freeze into a solid or vaporize into a gas under different conditions.

for such more questions on reactants

https://brainly.com/question/26283409

#SPJ8

The molecular formula of the compound is C6H6

First, convert the percentages to moles

C = 92.9/12 = 7.74

H = 7.71/1 = 7.71

Thus, the empirical formula will be  CH

[empirical formula]n = molecular formula

Empirical formula mass = 12 + 1 = 13

n = empirical formula mass/molar mass = 78/13 6

Thus, the molecular formula will be C6H6

More on molecular formulas can be found here: https://brainly.com/question/14425592

#SPJ1

Answer:

Constrictive,

Explanation:

Constrictive population pyramid displays lower percentages of younger people

Answer:

E

Explanation:

We want to determine the amount of methanol (CH₃OH) needed to prepare 175 mL of a 1.00 M CH₃OH solution.

First, determine the amount of moles of CH₃OH needed. Recalled that molarity is simply moles per liter volume (mol / L):

\(\displaystyle\begin{aligned} & 175\text{ mL} \cdot 1.00\text{ M CH$_3$OH} \\ \\ = & 175\text{ mL} \cdot \frac{1.00\text{ mol CH$_3$OH}}{1\text{ L}} \cdot \frac{1 \text{ L}}{1000\text{ mL}} = 0.175\text{ mol CH$_3$OH} \end{aligned}\)

Convert from moles of CH₃OH to grams:

\(\displaystyle 0.175\text{ mol CH$_3$OH} \cdot \frac{32.05\text{ g CH$_3$OH}}{1\text{ mol CH$_3$OH}} = 5.61\text{ g CH$_3$OH}\)

In conclusion, the answer is E.

The heat absorbed by the engine block when its temperature is raised from 20°C to 90°C is 665,640 J.

To calculate the heat absorbed by the engine block, we can use the equation:

Q = mcΔT

where Q is the heat absorbed, m is the mass of the engine block, c is the specific heat capacity of steel, and ΔT is the change in temperature.

First, we need to calculate the specific heat capacity of steel. The specific heat capacity of steel is typically around 0.45 J/g°C.

Using this value and the given values of mass and temperature change, we can calculate the heat absorbed by the engine block as follows:

Q = (21080 g) x (0.45 J/g°C) x (90°C - 20°C)

Q = 21080 g x 0.45 J/g°C x 70°C

Q = 665,640 J

For more question on heat absorbed click on

https://brainly.com/question/30361927

#SPJ11

Answer:

chemical formula of isopropyl alcohol can also be written as: C3H7OH, CH3CHOHCH3 or (CH3)2CHOH.

chemical formula of ethanoic acid is CH₃COOH.

Explanation:

Then there is no net charge separation. a BH3 b CHCl3 c C2H2 d NH3. Optionally the ... Oxygen O2 c. ... BH3 2. Com Bh3 Polar Or Nonpolar In the case of non polar molecules dispersion forces or London forces are present between them.

The polar molecules is NO.

A polar molecule is one that has one end that is slightly positive and the other end that is slightly negative. Ionic or polar covalent bonds can form in polar molecule. A dipole is a molecule that has two poles. The dipole moment is the outcome of measuring the amount of polarity in a molecule.

NO molecule, In the periodic table, nitrogen is to the right of oxygen. Nitrogen has a lower electronegative potential than oxygen. All N-O bonds are polar, with the oxygen atom having a higher electron density. The uneven distribution of electrons in the NO molecule is quite minor. When a molecule is non-polar, the electrons are shared evenly, resulting in a non-polar bond, or the polar bonds are symmetric. So, oxygen, nitrogen and boron trihydride molecules are non-polar molecule.

Hence the correct option is D.

To know more about polar molecule, here,

https://brainly.com/question/11405437

#SPJ2

The type of movement that occurs in the plate movement listed above include the following:

These are gigantic pieces of the Earth's crust and uppermost mantle and are made up of oceanic crust and continental crust.

A convergent boundary as the name implies occurs when lithospheric plates are moving towards one another.

Read more about Tectonic plate here https://brainly.com/question/1162125

#SPJ1

Answer:

It is important to record the crime scene in order to view how it was originally found so when items are removed, it can still be investigated and viewed.

Explanation:

The rate constant : k = 9.2 x 10⁻³ s⁻¹

The half life : t1/2 = 75.3 s

Given

Reaction 45% complete in 65 s

Required

The rate constant and the half life

Solution

For first order ln[A]=−kt+ln[A]o

45% complete, 55% remains

A = 0.55

Ao = 1

Input the value :

ln A = -kt + ln Ao

ln 0.55 = -k.65 + ln 1

-0.598=-k.65

k = 9.2 x 10⁻³ s⁻¹

The half life :

t1/2 = (ln 2) / k

t1/2 = 0.693 : 9.2 x 10⁻³

t1/2 = 75.3 s

Answer:

k

Explanation:

See Your Question is incomplete So I am mentioning steps only to solve it.

In order to find the Final temperature we use thermodynamics

\(\\ \sf\longmapsto Q=mc\Delta T\)

Where

\(\\ \sf\longmapsto Q=Heat\)

\(\\ \sf\longmapsto m=Mass\)

\(\\ \sf\longmapsto c=Specific\:Heat\:Capacity\)

\(\\ \sf\longmapsto \Delta T=T_f-T_i\)

Refuse derived fuel had Higher energy than raw trash, but it takes energy to sort it before burning.

Refuse Derived Fuel is referred to as RDF. The industry refers to the combustible materials that are uused to make this fuel as municipal solid waste, or MSW. Usually picked up from industrial or commercial settings, this garbage is crushed, dried, bagged, and then burned to produce electricity.

The Refuse Derived Fuel have more energy content as it is created from only selected solid muncipal wastes which have scientifically proved for its energy content.

To know more about Refuse Derived Fuel click below:

https://brainly.com/question/24577819#

#SPJ4