You add 0.500 moles of an alcohol to 500 gram of water. The molality of your solution is?

Answers

Answer 1
.5/.5 = 1 M, as there would be 1 mol in a liter.

Related Questions

Translation is the conversion of
1 .RNA to DNA.
2. DNA to RNA.
3. DNA to protein.
4. RNA to protein.

(WILL MARK BRAINLIEST)

Answers

RNA to protein.

Translation is the process of translation messenger RNA to a chain of amino acids.

Translation is the conversion of RNA to protein. The conversion of RNA to DNA is called reverse transcription.

What do you mean by Proteins?

Proteins may be defined as natural-appearing, extremely complex substances that consist of amino acid residues joined by peptide bonds.

The process of translation occurs in the cytoplasm of the cells, while the process of transcription occurs in the nucleus itself.

The conversion of DNA to RNA is called transcription. While the proteins are never directly converted from DNA, it involves both processes of transcription followed by the translation.

Therefore, translation is the conversion of RNA to protein.

To learn more about Translation, refer to the link:

https://brainly.com/question/2449073

#SPJ2

I bet no one can solve this question......​

Answers

Answer:

Equilibrium is shifted to left.

Increase in temperature favours the endothermic reaction. In the given reaction, the backward reaction is an endothermic reaction. So the backward reaction is favoured, so the equilibrium shifts towards left.

GIVING 500 PTS Question 17 (1 point)
Chemical energy can be transformed into mechanical energy in a fan. However, what is the step that is missing from the diagram that shows how this transformation works?





Question 17 options:

magnetic energy


transformational energy


electrical energy


heat energy

Question 18 (1 point)
What is the difference between a generator and a motor?



Question 18 options:

A generator converts mechanical energy into electrical energy and a motor converts electrical energy into mechanical energy.


A generator converts electrical energy into mechanical energy and a motor converts mechanical energy into electrical energy.


A generator converts kinetic energy into mechanical energy and a motor converts mechanical energy into kinetic energy.



A generator converts potential energy into electrical energy and a motor converts electrical energy into potential energy.

Question 19 (1 point)
Which of these is an example of convection?



Question 19 options:

an egg boiling in water


an egg frying in a pan


an egg exposed to a flame


an egg warming under a light

Question 20 (1 point)
A rainstorm occurs on a hillside. Within hours, much of the water flows into a lake at the bottom of the hill. What will most likely happen to the rest of the water?



Question 20 options:

It will change into dew on plants along the hill.


It will become part of the groundwater flow.


It will form a cloud above the hill.


It will change from water into air.

Question 21 (1 point)
What is the Coriolis Effect?



Question 21 options:

the circulation route of trade winds moving from east to west


the way that tropical winds circulate to form hurricanes and large storms


the rapid movement of winds found in the upper atmosphere


he curved path of global winds due to the rotation of Earth

Question 22 (1 point)
Based on the weather map above, which statement is true based on the weather map?



Question 22 options:

A warm front is moving towards South Carolina bring rainy conditions.


A cold front just passed through South Carolina bringing cooler temperatures.


A warm front just passed through South Carolina bringing warmer temperatures.


A stationary front is moving towards South Carolina bringing long periods of rain.

Question 23 (1 point)
Which type of local wind is shown below and what causes this type of wind?



Question 23 options:

At night, cooler air over land replaces rising warmer air over water causing a land breeze.


At night cooler air over water replaces rising warmer air over land causing a land breeze.


During the day, cooler air over land forces warmer air over water to rise causing a sea breeze.

Question 24 (1 point)
An air mass, shown in the image below, that forms over parts of Mexico, Texas, and Arizona will be a _______.



Question 24 options:

continental polar air mass


continental tropical air mass


maritime polar air mass


maritime tropical air mass

Question 25 (1 point)
Which of these plants do not have special tissues to deliver food and water to its cells?



Question 25 options:

Maple


Dogwood


Tomato


Liverwort

Question 26 (1 point)
Where are the female reproductive organs of a flower found?



Question 26 options:

in the stamen


in the roots


in the pistil


in the petals

Question 27 (1 point)
What path do sperm cells take to get to egg cells during fertilization of a flowering plant?



Question 27 options:

Pollen lands on the stigma; pollen grain grows a tube down the style to an ovule; and fertilization occurs.


Pollen lands on an anther; grows a tube to the filament; and fertilization occurs.


Pollen lands on the stigma and fertilization of the stigma occurs.


Pollen lands on a newly formed seed and fertilization occurs.

Question 28 (1 point)
A green plant must be able to perform three different processes in order to survive. What are they?



Question 28 options:

respiration, perspiration, photosynthesis


transpiration, respiration, photosynthesis


chlorophyll, photosynthesis, perspiration


transcription, photosynthesis, chloroplast

Question 29 (1 point)
Which statement is a correct description of the processes of respiration and transpiration in a plant?



Question 29 options:

Transpiration is when the plant loses water through its leaves. Respiration is when the plant breaks down the sugar in its cells to release energy.


Transpiration is when the plant pulls water into its roots. Respiration is when the plant breathes.


Transpiration is when the plant grows over time. Respiration is when the plant breaks down the sugar in its roots.


Transpiration is when the plant produces buds. Respiration is when the plant dies.

Question 30 (1 point)
Which equation correctly describes photosynthesis?



Question 30 options:

water + sugar + oxygen → carbon dioxide + chlorophyll


sunlight + water + carbon dioxide → oxygen + sugar


sunlight + sugar → water + oxygen


carbon dioxide + oxygen → water + sugar + sunlight

Answers

Answer:

17. transformational energy

The mass of a brick is 5 grams. If the brick is smashed into little pieces, the total mass of all the pieces will be
5 grams
o less than 5 grams
O more than 5 grams
What will the mass be if the brick was smashed

Answers

Answer:

I am not sure but i think it is 5 grams

Explanation:

because the total mass= 5g

so it is a physical change so no new substance is formed

so the total mass = total mass of all the broken pieces

1. What are the two properties a force have that make
it a vector quantity? (Identify the force )

Answers

Answer:

magnitude and direction

Crystallisation description of method

Answers

Answer:

Crystallization is a method for transforming a solution into a solid, where a supersaturated solution nucleates the solute by a chemical equilibrium controlled process. Uniform particles with well-defined morphology are formed, and these readily re-dissolve

Explanation:

Answer:

Crystallization or crystallisation is the process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas.

Atoms that have the same number of outer electrons
OA.
are all metallic elements.
B. must be atoms of the same element.
OC.
are all nonmetallic elements.
OD.
belong to the same family of elements.

Answers

I can see two answers, I’d go with D, but all neutral atoms, of the same element would have the same number of outer electrons. However, if you consider that some of the atoms might be ions, that would eliminate B.

Identify the three basic ingredients used in glass and give an example of each​

Answers

Answer:

Sand (SiO2 silica) In its pure form it exists as a polymer, (SiO2)n.

Soda ash (sodium carbonate Na2CO3) ...

Limestone (calcium carbonate or CaCo3) or dolomite (MgCO3)

Explanation:

I am pretty sure you know what sand is, Soda ash is a fine white colored powder that is extracted from the ashes of plants growing in sodium rich soils. Limestone is is a common type of carbonate sedimentary rock.  

The nucleus contains:

protons and electrons
protons and neutrons
electrons
protons, neutron, and electons

Answers

Explanation:

protons, neutrons and electrons

Answer:

An atom contains protons, neutrons and electrons BUT A NUCLEUS CONTAINS PROTONS AND NEUTRONS ONLY.

g At the start of an experiment, there are 0.200 mol of reactant and 0 mol of product in the reaction vessel. After 25 min, 0.111 mol of reactant (CH3NC) remain. There are ________ mol of product (CH3CN) in the reaction vessel. At the start of an experiment, there are 0.200 of reactant and 0 of product in the reaction vessel. After 25 , 0.111 of reactant remain. There are ________ of product in the reaction vessel. 0.022 0.089 0.311 0.111 0.200

Answers

Answer: b. 0.089

Explanation: The Law of Conservation of Mass states that when in a chemical or physical change, the products' mass of a chemical reaction will equal to the mass of the reactants' mass or in other words, mass cannot be created or destroyed.

The same can be said to moles, since, they are also measures of mass.

In the reaction:

[tex]CH_{3}CN_{(g)} \rightarrow CH_{3}NC_{(g)}[/tex]

initially there were 0.200 mol of reactant. After 25 min, there are 0.111 mol left.

This means that 0.089 mol of reactant "transformed" into product.

Therefore, in the reaction vessel, there are 0.089 mol of product.

6. Certain materials can act as indicators because they change
a. Acidity
b. Color
c. Concentration
d. Taste

Answers

Answer:

B

Explanation:

Helppppp pleaseeee xx

Answers

Answer:

2.5 moles of O₂ = 5 moles of H₂O

Explanation:

The balanced equation for the reaction is given below:

2H₂ + O₂ —> 2H₂O

From the balanced equation above,

1 mole of O₂ reacted to produce 2 moles of H₂O.

Finally, we shall determine the number of mole of H₂O produced by the reaction of 2.5 moles of O₂. This can be obtained as follow:

From the balanced equation above,

1 mole of O₂ reacted to produce 2 moles of H₂O.

Therefore, 2.5 moles of O₂ will react to produce = 2.5 × 2 = 5 moles of H₂O.

Thus,

2.5 moles of O₂ = 5 moles of H₂O

As a bond between a hydrogen atom and a
sulfur atom is formed, electrons are
A. shared to form an ionic bond
B. shared to form a covalent bond
C. transferred to form an ionic bond
D. transferred to form a covalent bond

Answers

it is b shared to form a covalent bond

Explanation:

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Water vapor also enters the atmosphere through —————(2 words), which takes place in many cells and produces water and carbon dioxide.

Answers

Answer:

It is photosynthesis and transpiration

hope it helps

determine the number of grams of carbon 3.14x 1023 atoms of carbon

Answers

Answer:

6.26 g C

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic TableMolesAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

[Given] 3.14 × 10²³ atoms C

[Solve] grams C

Step 2: Identify Conversions

Avogadro's Number

[PT] Molar Mass of C - 12.01 g/mol

Step 3: Convert

[DA] Set up:                                                                                                      [tex]\displaystyle 3.14 \cdot 10^{23} \ atoms \ C(\frac{1 \ mol \ C}{6.022 \cdot 10^{23} \ atoms \ C})(\frac{12.01 \ g \ C}{1 \ mol \ C})[/tex][DA] Multiply/Divide [Cancel out units]:                                                         [tex]\displaystyle 6.26227 \ g \ C[/tex]

Step 4: Check

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

6.26227 g C ≈ 6.26 g C

I think it would be 6.26 g

Fill in the blanks 2. A forest is a purtier of- and following​

Answers

Answer:

Odors and pollutant gases

Explanation:

Odors an pollutant gases, I hope this helps

Please..................​

Answers

Sorry so what I think u should do is ask your teach or look up on how to do this problem

4. "Metals are conductor of electricity"prove​

Answers

Answer:

Hey mate.......

Explanation:

This is ur answer......

Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.

Hope it helps!

mark me brainliest pls......

Follow me! :)

A machine with three pulleys uses
force to do work than a machine with four pulleys.
more
less

Answers

What exactly is the question

10 gram sample of methane (CH 4 ) has the same number of molecules as 10 gram sample of O 2

Answers

The given question is incomplete. The complete question is:

10 gram sample of methane [tex](CH_4)[/tex] has the same number of molecules as 10 gram sample of [tex]O_2[/tex]. True or False

Answer: Thus the statement is False.

Explanation:

According to avogadro's law, 1 mole of every substance contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the moles, we use the equation:

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

1. [tex]\text{Number of moles for methane}=\frac{10g}{16g/mol}=0.625moles[/tex]  

Now 1 mole of [tex]CH_4[/tex] molecule contains = [tex]6.023\times 10^{23}[/tex] of molecules

0.625 mole of [tex]CH_4[/tex] molecule contains = [tex]\frac{6.023\times 10^{23}}{1}\times 0.625=3.76\times 10^{23}[/tex] molecules

2. [tex]\text{Number of moles for oxygen}=\frac{10g}{32g/mol}=0.3125moles[/tex]  

Now 1 mole of [tex]O_2[/tex] molecule contains = [tex]6.023\times 10^{23}[/tex] of molecules

0.3125 mole of [tex]O_2[/tex] molecule contains = [tex]\frac{6.023\times 10^{23}}{1}\times 0.3125=1.88\times 10^{23}[/tex] molecules

The number of molecules are different.

A double replacement reaction is a reaction in which one element replaces a similar element within a compound
True
False

Answers

Answer:

False

Explanation:

. What you’re describing is a displacement reaction.

Answer:

False, that is a single replacement reaction that you have described.

Explanation:

seven carbon chain with CH3 attached to second and third carbon

Answers

Answer:

2,3-dimethylheptane.

CH₃ - CH - CH-CH₂-CH₂-CH₂-CH₂

           |        |

       CH₃    CH₃

Explanation:

Hello there!

In this case, according to the given instructions, it is possible to draw the organic chemical structure by connecting seven carbon atoms along the parent chain with two methyl substituents at the second and third carbon atoms; thus, the resulting structure is:

CH₃ - CH - CH-CH₂-CH₂-CH₂-CH₂

           |        |

       CH₃    CH₃

Furthermore, the name would be 2,3-dimethylheptane according to the IUPAC rules for nomenclature.

Best regards!

Hydrochloric acid reacts with sodium hydroxide to form water and sodium chloride. Hydrochloric acid is an extremely acidic, clear, corrosive liquid. Sodium hydroxide is a very basic white solid.

What can be known about the reactants of this reaction?

They will be clear.
They will not have the properties of sodium hydroxide or hydrochloric acid.
They will be corrosive.
They will have the properties of sodium hydroxide or hydrochloric acid.

Answers

The answer is C.

You're welcome!

how many mole of diphosphorus pentoxide are represented by 2.63×10²⁶ molecules​

Answers

Answer:

436.88 moles of P₄O₁₀

Explanation:

From the question given above, the following data were obtained:

Number of molecules of P₄O₁₀ = 2.63×10²⁶ molecules​

Number of mole of P₄O₁₀ =?

From Avogadro's hypothesis,

6.02×10²³ molecules = 1 mole of P₄O₁₀

Therefore,

2.63×10²⁶ molecules​ = 2.63×10²⁶/6.02×10²³

2.63×10²⁶ molecules​ = 436.88 moles of P₄O₁₀

Thus, 436.88 moles of P₄O₁₀ are present in 2.63×10²⁶ molecules.

During the rock cycle, which of the following types of materials forms as a result of weathering and erosion of rock?

Answers

what are my answer choices

How many moles of Ca(NO3)2 must be added to 1.0 L of a 0.255 M HF solution to begin precipitation of CaF2(s)

Answers

Answer:

6.1×10^(-10) mol

Explanation:

CaF2(s) -----------> Ca2+(aq) +2F-(aq)

          Ksp = [Ca2+][F-]^2

  Given data

   [F-] = 0.255 M

∴ The concentration of Ca2+required to start the precipitation

                 [Ca2+] = Ksp / [F-]2

                            = (4.0 X 10^-11) /(0.255)^2

                            = 6.1×10^(-10) M

Here the volume is 1.0 L  

∴ The number of molesof  Ca(NO3)2 must be added to 1.0 L of a1.0 L of a 0.255 M HF solution to begin precipitation ofCaF2 (s)=   6.1×10^(-10) mol

write down the sp-notation for cl-37​

Answers

Its nucleus contains 17 protons and 20 neutrons for a total of 37 nucleons. Chlorine-37 accounts for 24.23% of natural chlorine, chlorine-35 accounting for 75.77%, giving chlorine atoms in bulk an apparent atomic weight of 35.453(2) g/mol. (1s2, 2s2, 2p6, 3s2)

which statement is true about the reaction shown by this chemical equation HCl + NaOH ------> NaCl + H2O

Answers

Answer:

A. It is exothermic

Explanation:

This reaction of acid and base represents synthesis reaction because new subsatnces are produced.

What is synthesis reaction?

Synthesis reactions are reactions that occur when two different atoms combines to form a different molecule. A synthesis reaction can be represented by the equation i.e. A + B → C. In this equation, the A and B represent the reactants whereas the C represents the product.

So we can conclude that option C is the correct answer which is the synthesis reaction.

Learn more about reaction here: https://brainly.com/question/26018275

A gas is expanded from an initial volume of 1 L at 1 atm at 7 °C to a final volume of 5 L.

During the expansion the gas increases to 287 °C. What is the final pressure?

Answers

Answer:

0.40 atm

Explanation:

To answer this problem we can use the combined gas law:

T₂P₁V₁ = T₁P₂V₂

In this case:

T₂ = 287 °C ⇒ 287 + 273.16 = 560.16 KP₁ = 1 atmV₁ = 1 LT₁ = 7 °C ⇒ 7 + 273.16 = 280.16 KP₂ = ?V₂ = 5 L

We input the data:

560.16 K * 1 atm * 1 L = 280.16 K * P₂ * 5 L

And solve for P₂:

P₂ = 0.40 atm

What gas is used and what is released
a.carbon dioxide / oxygen
b.Oxygen/carbon dioxide
c.Carbon dioxide/helium
d.oxygen/calcium

Answers

Answer:

if i got it right i think it woud be a

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