How many moles of sucrose (m = 342.3 g/mol) are there in 25 ml of a 0.551 g/l solution of sucrose?

Small particle size (increased surface area) generally cause a reaction to proceed faster then there are more collisions per second and the collisions are of greater energy

A particle means a small portion of matter called particle and increasing the surface are of reactant increases the frequency of collision also increase the reaction rate and smaller particle have more surface area than the large particle then the more surface area for particle to collide and faster the reaction will occur that's why small particle size (increased surface area) generally cause a reaction to proceed faster then there are more collisions per second and the collisions are of greater energy

Know more about reaction rate

https://brainly.com/question/9514769

#SPJ1

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 2 × 2

We have the final answer as

Hope this helps you

Answer:

A coffee cup calorimeter is a constant-pressure calorimeter.

Explanation:

As such, the heat that is measured in such a device is equivalent to the change in enthalpy.

The molar heat capacity at a constant volume for this gas is 15.90 J/(K⋅mol) if 3.4 moles of this gas require 454 j of energy to raise its temperature by 8.4 k.

The molar heat capacity can be calculated by using the formula;

molar heat capacity = C / n

where C represents the heat capacity

n represents moles

The heat capacity of this gas can be calculated as follows;

heat capacity = E / T

here, E represents the amount of heat energy supplied

T represents the change in temperature

Substituting the given values in the heat capacity formula;

heat capacity = 454 / 8.4

heat capacity = 54.05

Now we substitute this calculated value of heat capacity in the formula of molar heat capacity;

molar heat capacity = C / n

molar heat capacity = 54.05 / 3.4

molar heat capacity = 15.90

Therefore, the molar heat capacity for this gas at constant volume is calculated to be 15.90 J/(K⋅mol).

To learn more about the molar heat capacity, click here:

https://brainly.com/question/21326224

#SPJ4

Answer:

animal cell

Explanation:

Cytokinesis -

It refers to the process of cell division, which takes place during mitosis, is known as cytokinesis.

The process of cytokinesis is different for animal cell and plant cell.

Hence, from the given information of the question,

The correct answer is animal cell.

Answer: WAIT WHAT- YOU SHOULD BE MY FRIEND BTW SNAP IS kpurdham5

Explanation: ‍♂️

Option E IR absorptions are caused by electron excitation  isn't true about IR spectroscopy.

IR absorptions are caused by changes in the vibrational energy of bonds in a molecule, not by electron excitation. This means that IR spectroscopy is based on the measurement of the absorption of infrared light by a sample, not on the excitation of electrons.

IR spectroscopy, or Infrared spectroscopy, is a type of vibrational spectroscopy that measures the vibrations of bonds between atoms in a molecule, it is used to identify and quantify the composition of a sample by analyzing the absorption or transmission of infrared light through the sample.

By analyzing the pattern of IR absorptions, it is possible to identify the functional groups and the chemical composition of a sample, which can provide valuable information about its structure and properties.

To learn more about IR absorptions, visit:

https://brainly.com/question/14389213#

#SPJ11

Answer:

Metals on the left of the Periodic Table.

Non-Metals on the top-right, plus Hydrogen.

i cant see anything in the picture, its just black

Answer:

February 12th.

Explanation:

Trust me.

To make 1 liter of a 10% NaCl solution from a solid stock, you will require the following materials and containers.MaterialsSolid NaClDistilled water1-Liter volumetric flask250-mL volumetric flask 2-beakersProcedureTo prepare 1 liter of a 10% NaCl solution, the following procedure should be followed:Measure out 100g of NaCl using a balance.

Measure the weight of an empty 250-mL volumetric flask.Add the NaCl to a 250-mL beaker and add a small amount of distilled water to it to dissolve the NaCl.Carefully pour the dissolved NaCl solution into the 250-mL volumetric flask. Add distilled water to the mark on the flask to make up the volume. Stopper the flask and invert it several times to mix the solution.Measure the weight of the 1-Liter volumetric flask.Add the 250-mL volumetric flask solution to a 1-Liter volumetric flask.Add distilled water to the mark on the flask to make up the volume.

Stopper the flask and invert it several times to mix the solution.The final volume of the solution will be 1 liter of a 10% NaCl solution.PrecautionsEnsure the NaCl has completely dissolved before adding more water to avoid making a less concentrated solution.Measure the weight of the volumetric flask before and after adding the solution to calculate the volume of solution that was added.Use distilled water to prepare the solution.

To know more about volumetric flask  visit:-

https://brainly.com/question/28997155

#SPJ11

An atom's configuration based on its number of electrons ends at 3p. Another atom has seven more electrons. Starting at 3p, the remaining configuration is O3p445²3d5. Option C is correct answer.

The electron configuration of an element refers to the number of electrons in each of its atoms that are located in the shells around the atomic nucleus. Electrons in the same shell have similar energies; they are arranged in shells according to increasing energy levels.According to the question, the atom's configuration based on its number of electrons ends at 3p, and another atom has seven more electrons. Hence, the electron configuration of that atom should start with 3p since the question states starting at 3p. The remaining seven electrons should go into the 4s and 3d sub-shells. Therefore, the correct answer is:O3p445²3d5

The correct answer is C.

For more question electrons

https://brainly.com/question/20947152

#SPJ8

The element X that could be responsible for the blue color in aqueous solutions of compounds is (2) copper.

Copper compounds are known to exhibit various shades of blue in aqueous solutions. This is due to the presence of copper ions (Cu2+) which absorb certain wavelengths of light, particularly in the blue region of the electromagnetic spectrum. The absorption of light by copper ions results in the reflection of blue light, giving the solution its characteristic blue color.

Copper is a transition metal that can form different oxidation states, including Cu2+. When copper ions are present in solution, they can interact with water molecules or other ligands to form complex ions, which contribute to the blue color. Copper compounds such as copper sulfate (CuSO4) and copper nitrate (Cu(NO3)2) are examples of substances that produce blue solutions when dissolved in water.

In contrast, carbon, sodium, and potassium compounds generally do not exhibit a blue color in aqueous solutions. Carbon compounds are typically colorless or exhibit other colors depending on their chemical structure. Sodium and potassium compounds are often colorless or may produce solutions with a slight yellow tint, but they do not typically produce a strong blue color.

To learn more about aqueous solutions click here: brainly.com/question/1326368

#SPJ11

The time taken for half of the radioactive nuclei in a sample to decay is called the half-life of the nuclide. This value is indeed characteristic of a specific nuclide and is not dependent on the number of nuclei present.

The statement is true. The half-life of a radioactive nuclide refers to the time it takes for half of the radioactive nuclei in a sample to decay. It is a fundamental property of a specific nuclide, meaning that each nuclide has its own unique half-life value. The half-life is constant for a given nuclide and is not influenced by the number of nuclei present in the sample.

The concept of half-life is crucial in understanding radioactive decay and its applications in various fields like radiometric dating, nuclear physics, and medical imaging. The half-life allows scientists to predict how long it will take for a given amount of radioactive material to decay by half. Regardless of the initial amount of radioactive nuclei, the proportion that decays remains the same for each half-life interval.

This property makes the half-life a reliable measure for determining the rate of decay and estimating the age or activity of a radioactive substance.

Learn more about radioactive nuclide here:

https://brainly.com/question/2872076

#SPJ11

Answer:

Possible rapid deterioration of natural habitats where phytoplankton and seaweed exist.

Explanation:

Certain basic building blocks are needed for nautical environments to thrive. Assuming, in this context, without most of a certain type of oceanic species, the remaining habitats will suffer.

B) Glycerol is not found in nucleic acids. Glycerol is a three-carbon alcohol that is a component of triglycerides, which are the main constituents of fats and oils.

Nucleic acids, such as DNA and RNA, are composed of nucleotide subunits. Nucleotides consist of three components: a phosphate group, a five-carbon sugar molecule (deoxyribose in DNA or ribose in RNA), and a nitrogenous base. In DNA, the nitrogenous bases include adenine (A), guanine (G), cytosine (C), and thymine (T). In RNA, thymine is replaced by uracil (U). Glycerol, on the other hand, is a three-carbon alcohol and is not a component of nucleotides or nucleic acids. It is primarily involved in the structure of lipids, serving as a backbone for triglycerides and phospholipids.

To know more about Glycerol

https://brainly.com/question/28468716#

#SPJ11

When water is lost, but electrolytes are retained, the first thing that happens is that moves water from the ICF to the ECF.

The fluid inside of cells, also called the cytoplasm or cytosol, makes up about 60% of the water in the human body, totaling about 7 gallons. Organelles like the nucleus, endoplasmic reticulum, mitochondria, lysosomes, and Golgi apparatus are suspended in and supported by the ICF. Also found in the ICF are cellular building blocks like sugars, proteins, carbohydrates, and lipids.

ECFs are any body fluids that are not inside cells. The two main components of ECF are plasma and interstitial fluid (IF). The balance consists of cerebrospinal fluid, lymph, the synovial fluid in the joints, pleural fluid in the pleural cavities (lungs), pericardial fluid around the heart, peritoneal fluid in the peritoneal cavity (abdomen), and the aqueous humor of the eye. In mammals, milk is also considered an extracellular fluid.

The ICF has higher amounts of potassium, phosphate, magnesium, and protein compared to the ECF. The plasma has high concentrations of sodium, chloride, and bicarbonate, but lower levels of protein as compared to the ICF. While water moves passively via osmosis, sodium and potassium ions move in and out of cells using active transport ion pumps. The pumps are powered by adenosine triphosphate (ATP) to provide the energy to move the ions against their concentration gradients (i.e. sodium moves out of the cell and potassium is pumped in) and maintain the gradients inside and outside the cell.

learn more about ICF and ECF at https://brainly.com/question/17312247.

#SPJ4

Rank of compounds by Solubility in Hexane is C3H8 (propane) > CH3OH (methanol) > H2O (water)

The solubility of a substance is the amount of that substance that can be dissolved in a given amount of a solvent. Propane(C3H8) is the most soluble in hexane due to its hydrophobic nature. Methanol(CH3OH) is slightly more soluble than water due to its polar nature. Water(H2O) is the least soluble due to its high polarity.Hexane is a nonpolar solvent, so it is not miscible with polar molecules like water and methanol. However, it is miscible with nonpolar solutes like propane. Therefore, propane would be soluble in hexane, whereas methanol and water would not be.

learn more about solubility refer:brainly.com/question/11294542

#SPJ4

Answer:

117 grams H₂O

Explanation:

To find the amount, you need to (1) convert from moles HNO₃ to moles H₂O (via mole-to-mole ratio from equation) and then (2) convert from moles H₂O to grams (via molar mass from periodic table). The final answer should have 3 sig figs according the the given value (19.5).

S + 6 HNO₃ --> H₂SO₄ + 6 NO₂ + 2 H₂O

Molar Mass (H₂O): 15.999 g/mol + 2(1.008 g/mol)
Molar Mass (H₂O): 18.015 g/mol

19.5 moles HNO₃         2 moles H₂O          18.015 grams
--------------------------  x  ----------------------  x  ----------------------  = 117 grams H₂O
                                    6 moles HNO₃           1 mole H₂O

Answer:

A

Explanation:

A, because the chemical causes a varies of heat waves that warms your hand but it also create good light to see in the dark

It is clear that as temperature rises, the kinetic energy of the particles in a perfect atomic gas also rises. This also holds true for actual gases and other ideal gases with more intricate molecular structures.

Heat energy is arbitrarily measured as "temperature" (enthalpy). When a system encounters a higher energy source, the temperature of that system rises as a result.

The result is the transmission of energy as heat, regardless of the source. Heat causes molecules to move more quickly (absorb energy), and some or all of the heat energy is transformed into kinetic energy.

Therefore, the result of heating a gas is a quicker rate of molecular motion. Because of the molecules' more frantic, frenetic mobility and subsequent collisions with the container walls, there is a rise in pressure inside the container.

To learn more about temperature please click on below link

https://brainly.com/question/13935327

#SPJ4

Oxygen (O₂) is the limiting reactant.

Balanced chemical equation for reaction of disilane with oxygen:

2Si₂H₆ + 7O₂ → 4SiO₂ + 6H₂O.

Word equation: disilane + oxygen → silicon dioxide + water.

n(Si₂H₆) = 8.4 mol; amount of disilane

n(O₂) = 15.1 mol; amount of oxygen

From balanced chemical equation: n(Si₂H₆) : n(O₂) = 2 : 7

mole ratio for disilane = 8.4 mol / 2 = 4.1 mol

mole ratio for oxygene = 15.1 mol / 7 = 2.15 mol

Oxygen is the limiting reactant, because it has smaller mole ratio than disilane.

Limiting reactant determine amount of the product formed in a reaction.

More about limiting reactant: brainly.com/question/23661051

#SPJ4

Answer:

Drinking water should have sufficiently low levels of dissolved salts or microbes.

Explanation:

If the threshold energy of the reaction 2016O(n, γ) 170 is 15.6 MeV, then the atomic mass of 170Ol can be calculated.

Given:Atomic mass of Ol (15.996415 amu)Atomic mass of neutron (1.008665 amu)M (Ol) = 15.996415 amuM (neutron) = 1.008665 amu Threshold energy of the reaction, E = 15.6 MeV The threshold energy (E) is the minimum amount of energy that an incoming neutron must have to trigger the nuclear reaction or the amount of energy that is needed to supply for the reaction to proceed.

The atomic mass of 170Ol can be calculated as follows:E = [M (n) + M (2016O) - M (170O)] x c²Where c = speed of light, M (n) = mass of neutron, M (2016O) = mass of oxygen-16M (170O) = mass of the oxygen-17, the product of the reaction.Rearranging the above equation:  M (170O) = [M (n) + M (2016O) - E/c²]Thus, M (170O) = [1.008665 + 15.994915 - (15.6 x 10⁶ eV/ (3.0 x 10⁸ m/s)²)] amuM (170O) = 16.98803 amuTherefore, the atomic mass of 170Ol is 16.98803 amu.

To know more about nuclear reaction visit:-

https://brainly.com/question/13315150

#SPJ11

The heat of reaction (ΔH) for the given reaction is -890 kJ/mol. This negative value indicates that the reaction is exothermic, meaning that it releases energy in the form of heat.

The heat of reaction (ΔH) for the given reaction can be calculated using bond energies of the molecules involved. The bond energy is defined as the energy required to break a bond, and the bond energy of a reaction is the difference between the bond energies of the reactants and the products. In this case, the bonds broken in the reactants are CH and O2, while the bonds formed in the products are CO2 and H2O.

Using the bond energy values from the table of bond energies, we get:

ΔH = Σ(ΔH of bonds broken) - Σ(ΔH of bonds formed)
  = (1x413 + 2x498) - (1x799 + 2x464)
  = -890 kJ/mol

Therefore, the heat of reaction (ΔH) for the given reaction is -890 kJ/mol. This negative value indicates that the reaction is exothermic, meaning that it releases energy in the form of heat.

Know more about Exothermic reactions here:

https://brainly.com/question/10373907

#SPJ11

Helium moves more quickly on average than argon.

How much thermal energy does helium have compared to argon?

Helium has a lower thermal energy than argon does.

Explanation:

Due to the smaller mass of helium atoms in comparison to argon atoms, their average speed is higher under the given conditions. An atom's average speed is inversely related to its mass. While the average speed of an atom reduces as the mass of the atom grows, the opposite is true if the mass of the atom decreases.

To learn more about helium from the given link.

https://brainly.com/question/16998244

#SPJ4