Sucrose is very soluble in water. At 25◦C,
211.4 grams of sucrose will dissolve in 100
g of water. Given that the density of the
saturated sucrose solution is 1.34 g/mL, what
is the molarity of the solution? The molar
mass of sucrose is 342 g/mol.

(It's not 1 or 3)

Answer:

285

Explanation:

A photosynthetic reaction is the formation of the glucose and oxygen molecule by water and carbon dioxide. 12 moles of water will be used in the reaction.

Moles are the ratio of the mass of the substance to the molar mass of the substance.

In the photosynthetic reaction, 6 moles of carbon dioxide and 6 moles of water are utilized to produce 1 mole of a glucose molecule and 6 moles of oxygen.

From this, it can be said that the number of moles consumed of carbon dioxide and water will be equal and in the ratio of 1:1.

The number of moles of carbon dioxide will be equal to that of the water molecule and will also be equal to the ratio of the mass of carbon dioxide to the molar mass of carbon dioxide.

The moles of water will be calculated as:

[tex]\begin{aligned}\rm moles &= \rm \dfrac{\text{mass of CO}_{2}}{\text{molar mass of CO}_{2}}\\\\&= \dfrac{528}{44.01}\\\\&= 12\;\rm moles\end{aligned}[/tex]

Therefore, option A. 12 moles of water will be used.

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Answer:

Hehe!

Explanation:

Because Increased surface area provides more surface for chemical weathering to attack the rock,allowing chemical weathering to speed up.

Answer:

Carbon and hydrogen atoms in the hydrocarbon fuel react with oxygen in an exothermic reaction. carbon dioxide and water are produced

Explanation:

well, I dunno if I'm correct but I think it's a physical change cause no new substance is formed

Answer:

Hey Man I dont know the Answer Im really sorry

Explanation:

I took the test though

According to molar concentration, four liters of solvent would be needed to create a 5.5 M solution from 22 moles of sodium chloride.

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters. Substitution of values in formula gives, volume= 22/5.5=4 liters.

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#SPJ2

Explanation:

wat exactly do u need to do here?

~Shoto Todoroki here~

Except for Pluto, the outer planets are alike in a lot of ways. They are much bigger than the inner planets. They are made mostly of hydrogen and helium. The hydrogen and helium are in the form of gas in the planets' atmospheres.

hope this helps :D

Answer:

The atmospheres of outer planets are made of hydrogen and helium, so that should help.

Answer:

The formula shows that there is one atoms of iron in each formula unit of FeCl3, and by definition the number of molecules or formula units in a mole is Avogadro's Number. Therefore, 5.33 moles contains 5.33 X Avogadro's Number of atoms, which is 3.21 X 1024 atoms, to the justified number of significant digits.

Answer:

The formula shows that there is one atoms of iron in each formula unit of FeCl3 , and by definition the number of molecules or formula units in a mole is Avogadro's Number . Therefore , 5.33 moles contains 5.33 X Avogadro's Number of atoms , which is 3.21 X 1024 atoms , to the justified number of significant digits .

Answer:

i'm attaching the report i made

Explanation:

(It does include the chart information)

hope this helps! have a wonderful day :)

The solubility of a solid solute increases with temperature.

The solubility of a solute is the amount of solute that dissolves in a given volume of solvent at a particular temperature.

The solubility of a solute increases with increase in temperature.

Based on the lab results, it was seen that with increase in temperature, the mass of sugar that dissolves in water increases.

50 mL of water at 2 °C dissolved only 80 g of sugar whereas at 102 °C, 250 g of sugar dissolved.

Therefore, it can be concluded that solubility of a solute increases with temperature.

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Answer:30mL

Explanation:

If you add 2.50 with 0.750 divide that by 100 you would get 30.7 something without rounding it would be 30.

Answer:

Explanation:

Hope it helps!!!!

Answer:

Energy is absorbed

Explanation:

since 1932 i learn this

A spontaneous reaction favours the product formation and increases the entropy of the isolated system.  The sign of the entropy change will be negative as the product formation is less random.

Entropy is the degree of the disorder or randomness that occurs in the system that lacks available energy and cannot convert the mechanical energy or work.

The entropy of the reaction will be negative as the reactants are present in the gaseous state and the product formed is solid. The product formation was spontaneous and less random.

Therefore, option a. entropy will be negative as product formation is less random.

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Answer:

the second object had a weaker charge

Explanation:

the charged object had a stronger charge and opposite to that of the uncharged hence causing attraction

Answer:

d

Explanation:

The second object had a weaker charge.

The correct statement will be"The largest source of background ionizing radiation in the United States is Radon (Rn)which is formed in the decay series of uranium."

Generally, Ionizing radiation is simply defined as a state of energy that works by releasing electrons from their parent atoms or the molecules of materials.

In conclusion, Radon (Rn) a chemical element of Group 18 in the periodic table is the largest source of background ionizing radiation in the United States.

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Answer:This is approximately 2.69 * 10^26 molecules.

Explanation:

i just know

Answer:branched roots and thin roots and many roots

Answer:

A. Atomic number is 8, mass number of M is 16

B. Oxygen, O

C. 8 valence electrons, valency is 2

Explanation:

A. Atomic number = proton number

M2- = 2 extra electrons after forming octet structure, so 10-2=8

8 corresponds to number of protons, so atomic number is 8.

Mass number is number of protons + neutrons = 8+8=16

B. 8 in periodic table corresponds to oxygen

C. Number of valence electrons in an oxide ion is 8, valency is two as it forms -2 charge

Answer:

The locations of the volcanoes tend to be close/on the earthquake lines/zones and this is because earthquake activity forms mountains/volcanoes and also causes those volcanoes to erupt. The reason the earthquake zones are long lines is because earthquakes usually happen on fault lines, or where two tectonic plates are next to each other. These plates are like a jigsaw puzzle, as in, they are everywhere making up the pieces of the surface of the globe.  So that's why they are long lines.

Answer:

The percent composition of a compound is the calculated measure of each ... A sample of a liquid with a mass of 8.657 grams was discovered into its elements ad gave 5.217 grams of carbon, 0.9620 grams of hydrogen, and 2.478 grams of oxygen. ... mass of oxygen = 2.478 grams ... 14.01 g/mol x100 = 3.03 g/mol x 100.

Hope this helps, please let me know If I'm wrong.

Answer:

It is a noble gas.

Explanation:

The element in question is helium, a noble gas. It has a full shell of eight valence electrons like all the other noble gases, which means that it does not have to react with other elements in order to obtain a full octet of valence electrons. This means that it does not react with other elements.

Answer:

an earthquake

Explanation:

Note:-

In between these 30 elements ,there is carbon and hydrogen present who has infinite no of organic compounds .So just mentioning the common compounds

Here we go