a 1.28- g gas sample occupies 605 ml at 29 ∘c and 1.00 atm . what is the molar mass of the gas?

Answer:

Its 2 and 3

Explanation:

Answer:The earths plates shifting

Explanation: The movement releases stored-up 'elastic strain' energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake.

By using the definition of purity the amount of gold in the sample is 275.8 grams.

Since the given mass is in grams and we are asked to find the amount of gold in the sample, we can directly use the definition of purity, which is the mass of gold in the sample divided by the total mass of the sample. Let x be the amount of gold in grams. Then we can write:

purity = x / 275.8 g

Since the sample is pure gold, the purity is 100% or 1.00 in decimal form. Thus, we have:

1.00 = x / 275.8 g

Multiplying both sides by 275.8 g, we get:

x = 275.8 g

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Changing the concentration of the reactant does not affect the rate of the reaction.

In a zero-order reaction, the rate of the reaction remains constant regardless of changes in the concentration of the reactant. This means that doubling the concentration of the reactant will not affect the rate of the reaction.

This is because in a zero-order reaction, the reaction rate is determined solely by the concentration of the enzyme, and not by the concentration of the reactant.

Therefore, changing the concentration of the reactant does not affect the rate of the reaction.

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The reaction rate will remain the same when the concentration of the reactant doubles. So, the option is A.

In zero-order kinetics, the reaction rate is independent of the concentration of the reactant. This means that even if the concentration of the reactant doubles, the reaction rate will not change. Example of zero-order kinetics: The breakdown of alcohol in the liver follows zero-order kinetics. Regardless of how much alcohol is in the bloodstream, the liver can only process a certain amount per hour, so the breakdown rate remains constant.

Zero-order kinetics refers to a reaction where the rate of the reaction is independent of the concentration of the reactant. In enzyme kinetics, zero-order kinetics occurs when the reaction rate is limited by the rate of the enzymatic reaction itself rather than the concentration of the substrate.

Not all enzyme-catalyzed reactions follow zero-order kinetics, as some reactions may follow first-order or second-order kinetics, depending on the reaction mechanism and the concentration of the substrate.

In the given scenario, if the concentration of the reactant doubles, the reaction rate will remain the same since the reaction is following zero-order kinetics. Therefore, the option is A. remain the same.

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387.27 K temperature will the reaction proceed 6.00 times faster than it did at 337 K.

k2 is 6 times k1 and hence k2/k1 = 6

we have ln(k2/k1) = Ea/R (1/T1- 1/T2)

ln(6) = 38670/8.314 x( 1/337 -1/T2)

0.00038522 = (1/337 -1/T2)

1/T2 = 0.0033525

T2 = 387.27 K

In chemistry and physics, activation electricity is the minimal amount of electricity that has to be supplied for compounds to result in a chemical reaction. The activation energy of a reaction is measured in joules per mole, kilojoules in keeping with mole, or kilocalories consistent with mole.

Activation strength is described as the minimum quantity of strength required via a reacting molecule to get transformed into a product. it may additionally be defined because the minimal amount of energy had to prompt or energize molecules or atoms in an effort to go through a chemical reaction or transformation. In transition-state theory, activation electricity is the distinction in electricity content material between atoms or molecules in an activated or transition-country configuration and the corresponding atoms and molecules in their initial configuration.

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Complete Question:

A certain reaction has an activation energy of 38.67 kJ/mol. At what Kelvin temperature will the reaction proceed 6.00 times faster than it did at 337 K?

And this is y I should of paid attention in that one science class in middle school that taught this...

(￣▽￣;)

The compound form with a sodium cation and a carbonate anion has the following molecular formula: Na2CO3, and the name is the same as the individual names but now together, Sodium carbonate, letter B

Answer:

Total pressure = 10 atm

Explanation:

The excersise can help to understant the concept of mole fraction

Mole fraction is defined as:

moles of gas / Total moles = pressure of that gas / Total pressure

Both can be summed.

Sum of moles of each gas in the mixture = Total moles

Sum of pressures of each gas in the mixture = Total pressure

Those, are laws for gases.

Total moles: 3 mol of gas A + 4 moles of gas B + 5 moles of C

                 = 12 total moles

Pressure of A is 2.5 atm.

We replace data at the mole fraction relation

moles of A / total moles = Pressure of A  / Total pressure

3 moles / 12 moles = 2.5 atm / Total pressure

Total pressure = 2.5 atm / (3mol/12mol)

Total pressure = 10 atm

the Sun light from different parts of the Moon as the Moon revolves around the Earth

Answer:

Solute=the substance which a solvent dissolve to produce homogeneous mixture

Solvent= the substance in which a solute dissolve to produce homogeneous mixture

Explanation:

solvent: The liquid in which a solute is dissolved to form a solution.

solute: The component in a solution, dissolved in the solvent.

By using the ideal gas law to get volume we have"

Where v is volume, T is temperatute, n is number of moles, R is the molar gas constant and P is pressure. At STP P= 101,325 Pa, T= 273.15 K and R= 8.314 J/mol K

We must first convert mass to moles:

By substituting this value into the ideal gas law we have:

1.9502e-6L of H2 gas reacted at STP

Answer:

A. hydrolysis reaction.

Explanation:

Chemical Reactions.

First, let's review each concept of the group of answer choices:

- hydrolysis: is a reaction in which the net reaction is an organic compound reacting with water to give either two molar equivalents of a single product or more than one product.

- redox: is a type of chemical reaction that involves a transfer of electrons between two species.

- combustion: is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.

- neutralization: is a reaction that occurs when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water.

The problem is asking for the reaction that removes a phosphate group from ATP, so let's see the structure of ATP with one phosphate group:

What is enclosed in the red box is the phosphate group.

The reaction that removes this phosphate group represents a rupture of the structure and based on the logic of the definitions of the given concepts, the answer would be that the reaction to remove one phosphate group from ATP is A. hydrolysis reaction. This reaction looks like this:

ATP + water (H2O) -> ADP + Pi,

where ADP is the same molecule of ATP but it has two phosphate groups and Pi is the phosphate group removed.

One way of which element has the lowest or highest ionization energy is by looking at the periodic table. The periodic table has many properties possible to be understood, one of which is ionization energy, which is the ability of an element to make ions, becoming more reduced (gain electrons) and making another atom become more oxidized (lose electrons), the trend of ionization energy in the periodic table follow the directions up and right, so if the atom if in the far right of the periodic table, this means that this atom has a high ionization energy, and from the given options the one with the higher ionization energy will be Fluorine, answer letter B

Answer:

N3-

Explanation:

The FCC unit cell has an edge length of approximately 144.34 pm.

In a face-centered cubic (FCC) unit cell, there are four atoms, one at each corner and one at the center of each face. Let's assume that the edge length of the unit cell is "a" pm.

The diagonal of the unit cell can be found using the Pythagorean theorem:

diagonal² = a² + a² + a²

diagonal² = 3a²

diagonal = √(3) × a

The diagonal of the unit cell is also equal to four times the radius of the atom:

diagonal = 4 × radius

√(3) × a = 4 × 125 pm

a = (4 × 125 pm) / √(3)

a ≈ 144.34 pm

Therefore, the edge length of the FCC unit cell is approximately 144.34 pm.

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The rate law for the ozonization of pentene in carbon tetrachloride solution at 25°C is: Rate = 1.16×10^4[C5H10][O3].

The order with respect to pentene is 1, and the order with respect to ozone is also 1. The overall order of the reaction is: 2 (1+1).

This rate law can be used to predict the rate of the reaction under different conditions, such as different initial concentrations of reactants or different temperatures. It can also be used to design experiments to study the mechanism of the reaction.

The rate law for this reaction can be expressed as:
Rate = k[C5H10][O3]

To determine the value of the rate constant, we can use any one of the experiments and substitute the given values of [C5H10], [O3], and initial rate into the rate law equation.

Let's use experiment 1:
217 = k(7.16×10^-2)(3.06×10^-2)

Solving for k:
k = 1.16×10^4 M^-1 s^-1

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The medication can treat people who have the disease described. According to the commercial, the drug has FDA approval to treat a condition whose symptoms are listed.

Additionally, the narrator notes that the medication only comes with a prescription and has 1% of the active substance. We can deduce from this information that the drug can effectively treat persons who have the condition generating these symptoms, but obtaining it requires a prescription. The commercial provides no support for the other possibilities.

Therefore, the correct option is D.

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Answer:  In a chemical reaction the total mass of all the substances taking part in the reaction remains the same.

Answer:

record

Explanation:

Lisa's results can be presented in the following table:

Tablet Volume of HCl added (mL)

A                16

B                 15

C                 8

D                 12

b. Lisa should use a bar graph to show her results.

A bar chart or bar graph is described as a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent.

The x-axis can be labeled with the different types of tablets (A, B, C, and D), and the y-axis can be labeled with the volume of hydrochloric acid needed to change the color of the universal indicator.

Each bar in the graph is expected to represent the volume of hydrochloric acid needed for a particular type of tablet.

The bar graph will allow Lisa to easily compare the results for each tablet and determine which one had the best antacid properties.

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Pressure will it have if it's cooled is 0.264 atm

It is given that

volume of Hydrogen gas = 100.0 mL

pressure = 300 Torr

1 torr = 0.00132 atm

300 Torr = 0.396 atm

temperature 1 = 27°C = 300 K

temperature 2 = –73°C = 200 K

We have to find

pressure

Gay-Lussac's Law or Third Gas Law states that for a constant volume, the pressure is directly proportional to absolute temperature: P alpha T; also stated as P/T = K, where K is a constant, and similarly, P1/T1 = P2/T2

0.396/300 = P2/200

P2 = 0.396 x 200/300 = 0.264 atm

Hence, Pressure will it have if it's cooled is

0.264 atm

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Answer:

False

Explanation:

The air masses are not responsible for weather , it is cause by the Earth evolution

Answer:

what's the question?

Explanation:

for real though what's the question?

In a methyl tert-butyl ether sample that contains 69.0 moles of hydrogen, there are 5.75 moles of oxygen.

Methyl tertiary-butyl ether (MTBE), also known as methyl tert-butyl ether and tert-butyl methyl ether, is an organic chemical with the structural formula (CH3)3COCH3. MTBE is a colorless, flammable liquid that is only weakly soluble in water. MTBE is primarily a fuel additive that is mixed with gasoline to improve knock resistance and cut back on unwelcome emissions.

Methanol and isobutylene combine chemically to produce MTBE. Natural gas, especially methane, contains a variety of light hydrocarbons that steam reforming can transform into carbon monoxide and hydrogen. The resultant gases then continue to react in the presence of a catalyst to produce methanol. There are numerous ways to make isobutylene.

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Answer:

volume in Liter = 2.50 L

Explanation:

Given:

Na2CO3 = 0.2 M

Molar mass of Na2CO3 = 106 g/mol

Mass of Na2CO3 solution = 53 gram

Find:

Volume of Na2CO3

Computation:

Number of mol of Na2CO3  = (53 g) / (1.06 x 10² g/mol)

Number of mol of Na2CO3  = 0.5 mol

M = Number of mol / volume in Liter

0.2 = 0.5/ volume in Liter

volume in Liter = 0.5 / 0.2

volume in Liter = 2.50 L