whats the mass of 4.35x 10^-2 mol of NAOH

Methane is the unidentified gas since its molar mass is 16 g/mol.

When describing atomic masses and molecular masses, the Dalton (Da) or unified atomic mass unit (u) are two alternative units of mass that are frequently employed. It is known to be 1/12 the mass of a carbon-12 atom and is also referred to as "amu" in older.

We must be aware that a gas's molar mass directly relates to how long it takes to diffuse.

t1/t2 = √M1/M2

Let t1 equal the 1.50 minutes it takes for the combustible gas to disseminate. Let t2 equal the 4.73 minutes it takes for the bromine vapor to disperse.

M1 = the flammable gas's molar mass equals

160 g/mol is the molar mass of the bromine vapor, or M2.

replacing values.

1.50/4.73 = √M1/160

(1.50/4.73) ^2 = M1/160

0.1006 = M1/160

M1 = 0.1006 × 160

M1 = 16 g/mol

Methane is the gas in question.

Learn more about molar mass here-

https://brainly.com/question/22997914

#SPJ4

Answer:

105.5 mL

Explanation:

To solve this problem we can use the following equation:

Where:

We input the data:

And solve for V₁:

The volume of 0.504 M barium nitrate solution is needed to prepare the solution is 52.77 mL

We'll begin by calculating the molarity of the diluted barium nitrate solution. This can be obtained as follow:

Ba(NO₃)₂(aq) —> Ba²⁺(aq) + 2NO₃¯(aq)

From the balanced equation above,

2 mole of NO₃¯ is present in 1 mole of Ba(NO₃)₂

Therefore,

0.244 M NO₃¯ will be present in = 0.244 / 2 = 0.122 M Ba(NO₃)₂

Finally, we shall determine the volume of 0.504 M barium nitrate needed to prepare the solution

Molarity of stock solution (M₁) = 0.504 M

Volume of diluted solution (V₂) = 218 mL

Molarity of diluted solution (M₂) = 0.122 M

M₁V₁ = M₂V₂

0.504 × V₁ = 0.122 × 218

0.504 × V₁ = 26.596

Divide both side by 0.504

V₁ = 26.596 / 0.504

Therefore, the volume of 0.504 M barium nitrate needed to prepare the solution is 52.77 mL

Learn more on molarity: https://brainly.com/question/7429224

Answer:

1.25*10^24 atoms with sig figs

Explanation:

To find the number of atoms, an easy way to do this would be to convert the mass to the number of moles, then convert moles to the number of atoms.
There are 40.08 grams of calcium per mole, so 83.4 grams of calcium would have 83.4/40.08 moles of calcium, or about 2.081 moles of calcium
Each mole of something contains about 6.022*10^23 of that something, so 2.081 moles of calcium atoms would equal 2.081 *(6.022*10^23) atoms. 2.081 *(6.022*10^23) equals 1.25*10^24, so there would be 1.25 * 10^24 atoms in 83.4 grams of calcium

Explanation:

203.31                brainliest

Answer:

203.31g when rounded to 2 decimal places.

Answer:

4 millllllermeeters jb

Answer:

C . Kinetic Molecular Theory

The choice of solution has a concentration of 1.144 mol/kg molality.

Molarity corresponds to the moles of solvent divided by the amount of solution in litres, whereas molality is equal with the moles of solvent divided by the quantity of solvent in kilogrammes.

Since 1 mole of solute is present in 1 litre for the solution, which contains both the solute and the solvent, 1 molar aqueous solutions are more concentrated than one decays aqueous solutions.

To know more about molality visit:

https://brainly.com/question/26921570

#SPJ1

The three parts are:

This passage describes the role of enzymes in biological processes. Enzymes are protein molecules that act as catalysts, speeding up chemical reactions without being used up or changed in the process. They do this by binding to specific reactant molecules, called substrates, at a specific site on the enzyme molecule called the active site.

Only substrates that are shaped to fit the active site can bind to the enzyme. When the enzyme and substrate bind together, they form an enzyme-substrate complex, which helps to break bonds in the substrate molecules and form new bonds, resulting in the formation of products.

Therefore, The enzyme then releases the products and is free to bind with other substrates and repeat the process. The passage also notes that enzymes are important in cell processes that supply energy and that their activity can be affected by factors such as pH and temperature.

Read more about enzymes here:

https://brainly.com/question/14577353

#SPJ1

See text below



reactions in the body. Like all catalysts, enzymes

up by the chemical reaction. They can be used again. Also, most enzymes act in just one type of reaction. For example, the enzyme amylase is found in saliva. Amylase helps begin the process of food digestion in the mouth.

The figure below shows how an enzyme works. The reactants that bind to the enzyme are called substrates. The specific location where a substrate binds on an enzyme is called the active site. The substrate and active site are shaped to fit together exactly. Only substrates shaped to fit the active site will bind to the enzyme.

The bond between the enzyme and substrates creates the enzyme-substrate complex. This complex helps to break bonds in the reactants and form new bonds, changing the substrates into products. The enzyme then releases the products.

Enzymes are the chemical workers in cells. The actions of enzymes enable cell processes that supply energy. Factors such as pH and temperature affect enzyme activity.

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Substrate

Active sites

Substrate Enzyme

Biology online biologygmh.com

Product

Enzyme-substrate complex

Product

Chap

Pi

4

The best description of the relationship between population size, carrying capacity, and limiting factors is: "The size of a population usually stays near its carrying capacity due to limiting factors."

Carrying capacity refers to the maximum number of individuals that a particular environment can sustainably support. It represents the limit to which a population can grow given the available resources, such as food, water, and habitat. Limiting factors, on the other hand, are the factors that restrict population growth by reducing birth rates, increasing death rates, or limiting access to resources.As a population approaches its carrying capacity, limiting factors come into play and regulate the population size. These limiting factors can include competition for resources, predation, disease, availability of suitable habitat, and other environmental factors. They act as checks on population growth, preventing it from exceeding the carrying capacity of the ecosystem.

Therefore, the size of a population usually stays near its carrying capacity because the limiting factors ensure that the population does not exceed the available resources and ecological limits of the environment. If the population surpasses the carrying capacity, the limiting factors will intensify, causing a decline in resources and an increase in mortality rates, which ultimately brings the population back towards the carrying capacity.It's important to note that the relationship between population size, carrying capacity, and limiting factors is dynamic and can vary depending on various ecological and environmental factors.

for such more questions on capacity

https://brainly.com/question/29792498

#SPJ8

Answer:

n = 0.0088

Explanation:

Molar mass of N2 = 2 x 14 = 28

Moles = mass/molar mass

n = 0.247/28

n = 0.0088...

The number of moles of Nitrogen in 0.247g of Nitrous Oxide is 0.01122 moles.

The question is asking about the quantification of moles of 'N' in a given amount of Nitrous oxide (N2O). The Molar mass of Nitrous oxide (N2O) is approx 44.01 g/mole, and the molar mass of Nitrogen (N) is approx. 14.01 g/mole. Hence, there are 2 moles of N in a single mole of N2O as depicted by the molecular formula. Therefore, first we calculate the number of moles of N2O by the formula: moles = mass/molar mass. Using the given mass (0.247g), moles of N2O = 0.247/44.01 = 0.00561 moles. As there are 2 moles of N in every mole of N2O, the moles of N in 0.247g N2O = 2 * 0.00561 = 0.01122 moles.

https://brainly.com/question/35158407

If a penguin has to walk 70 miles at a rate of .75 meters per second, 66  days do it take to make the trip.

The term speed is defined as the rate of change of position of an object in any direction. Speed is calculated as follows: speed = distance × time.

The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity.

If you know how far something has traveled and how long it took to get there, you can calculate its average speed.

Time = distance / speed

distance = 0.75 meters

speed = 70 miles = 112.654 kilometres

Substitute this value in above formula

Time = 0.75 / 112.654

= 0.66

Thus, If a penguin has to walk 70 miles at a rate of .75 meters per second, 66  days do it take to make the trip.

To learn more about the speed, follow the link;

https://brainly.com/question/28224010

#SPJ1

In order to answer this question, we might use the formula in which we have frequency, wavelenght and the speed of light. This formula in order to find frequency will be written as it follows:

f = c/λ

where:

c = speed of light, which is 2.998*10^8 m/s

λ = wavelenght, which is 415 nm or 400*10^-9 meters

f = 2.998*10^8/400*10^-9

f = 7.49*10^14 Hz

Answer:

false

Explanation:

What would be the same  about the scientist's model probe and the eventual full-scale version of the probe is that; . They would be the same size. Option A

It is likely that the scientist's model probe would be built to replicate the size and proportions of the full-scale version because this would be vital in determining if the full-scale probe could endure the punishing conditions of Jupiter's atmosphere. The dimensions of the model probe and the real probe would therefore likely be the same.

However, it's likely that the model probe's parts weren't exactly the same as those in the actual probe.

Learn more about Jupiter:https://brainly.com/question/1451854

#SPJ1

Answer:

C

Explanation:

There are roughly 454 grams for every pound. The conversion factor would look like this for converting 2 lbs of a sample into grams:

2lbs sample (454g sample/1lb sample) = sample in grams.

BeC will will not form a pair because no free element is available with Be.

The elements given in the above question is as follow,

Now consider the ground state of given element we get,

\(Li=1s^2,2S^1\\Be=1s^2,2S^2\\B=1s^2,2S^2,2p^1\\C=1s^2,2S^2,2p^2\\N=1s^2,2S^2,2p^3\)

Now, for balance bond theory,

Consider,

a) LiC

\(Li=1S^2,2S^1\\C=1S^2,2S^2,2P^2\)

It will form a bond because unpaired electrons are present.

b)Bec

\(Be=1s^2,2S^2\\C=1s^2,2S^2,2p^2\)

If will not form a pair because no free element is available with Be.

c)BC

\(B=1s^2,2S^2,2p^1\\C=1s^2,2S^2,2p^2\)

It will form a bond because unpaired electrons are present in Boron and carbon.

d)\(C_2\)

\(C=1s^2,2S^2,2p^2\)

It will form a bond because unpaired electrons are present.

e)CN

\(C=1s^2,2S^2,2p^2\\N=1s^2,2S^2,2p^3\)

It will form a bond because unpaired electrons are present.

For more such question on valence bond.

https://brainly.com/question/23129240

#SPJ4

Answer:

10.8 L

Explanation:

Step 1: Given data

Step 2: Calculate the final volume of helium

If we assume ideal behavior and constant temperature, we can calculate the final volume of helium using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁ / P₂

V₂ = 1.00 atm × 595 L / 55.0 atm = 10.8 L

Based on the Law of Conservation of Mass, the mass of products form when baking soda decomposes is 168 g/mole.

The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.

From the equation of NaHCO3 → Na₂CO3 + H₂O + CO₂ , we have

Mass of baking soda = 2 x molar mass

Molar mass of NaHCO₃ = 84.007 g/mole

Mass of baking soda = 2 x 84.007 g/mole

Mass of baking soda =  168.014 g/mole=  168 g/mole

Therefore, based on the Law of Conservation of Mass, the mass of products form when baking soda decomposes is 168 g/mole.

Learn more about Law of Conservation of Mass at:

https://brainly.com/question/19038178

#SPJ1

Yes there is so many difference between warm or cold an object feels and its tempreture.

An object is an abstract data by the  type with the addition of polymorphism and to the  inheritance. Rather than thd  structure of the  programs as code and data, an of the  object-oriented system from its  the  integrates the two using the concept of an "object". An object has state by  (data) and behavior (code).  Objects can correspond to things found in the real world.

Yes the sense of touch by the  human skin is differently

Because hot object can be the  sense burn whereas cold object sense cool and shiver and it is

The hot body radiated energy and temperature in environment and become normal

But cold object absorb to the  energy from the  environment and become normal.

To know more about object click-

https://brainly.com/question/24445340

#SPJ1

Answer:

Example 1

palladium(II) nitrate,

Example 2

Metal catalysts such as Fe, Ni, Mo, and Co are routinely used in the manufacture of CNMs.

Explanation

The three metals used in catalytic converters — rhodium, platinum and palladium — are part of a category known as platinum group metals, or PGMs, which are known for their catalytic properties.

Answer:

52.068 amu

Explanation:

To calculate the average atomic mass of chromium, you have to first multiply the abundance of an isotope with its mass.

49.946 × 0.0435 = 2.173

51.941 × 0.838 = 43.527

52.941 × 0.0235 = 1.244

53.939 × 0.095 = 5.124

Next, add up all of the values, and you will get the average atomic mass.

2.173 + 45.527 + 1.244 + 5.124 = 52.068 amu

Considering the definition of molar mass, 5 grams of hydrogen is contained in methane, which contains 15 grams of carbon.

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

In this case, you know the molar mass of the elements is:

So, the molar mass of the compound CH₄ is calculated as:

CH₄= 12 g/mole + 4× 1 g/mole

Solving:

CH₄= 16 g/mole

In this case, from the above you can see that 1 mole of methane contains 4 grams of hydrogen.

In first place, you must know the moles de methane that contain 15 grams of carbon. For that, you can apply the following rule of three: If from the above you can see that 12 grams of carbon are contained in 1 mole of methane, 15 grams of carbon are contained in how many moles of methane?

\(moles of methane=\frac{15 grams of carbonx1 mole of methane}{12 grams of carbon}\)

moles of methane= 1.25 moles

Next, you can apply the following rule of three: If 1 mole of methane contains 4 grams of hydrogen, 1.25 moles of methane contains how many moles of hydrogen?

\(mass of hydrogen= \frac{1.25 moles of methanex4 grams of hydrogen}{1 moles of methane}\)

mass of hydrogen= 5 grams

Finally, 5 grams of hydrogen is contained in methane, which contains 15 grams of carbon.

Learn more about molar mass:

https://brainly.com/question/13436036?referrer=searchResults

brainly.com/question/5216907

brainly.com/question/11209783

brainly.com/question/7132033

brainly.com/question/17249726

The proximity of unsaturated groups (C=C, C=O, aromatic) and electronegative atoms (O, N, halogen) has an impact on the proton NMR chemical shift. Electronegative groups shift to the left (down field; ppm rise).

The chemical shift in nuclear magnetic resonance (NMR) spectroscopy refers to the atomic nucleus' resonant frequency in relation to a standard in a magnetic field. The location and quantity of chemical changes frequently serve as diagnostic indicators of molecular structure.

You take into account the chemically non-equivalent proton(s) one at a time while making chemical shift predictions. Find the origin of each proton or proton pair that is not chemically comparable. Whether the proton(s) is/are linked to a methyl, methene, or methine determines the beginning point.

learn more about nuclear magnetic resonance

https://brainly.com/question/21024524

#SPJ1

Answer:

With a rdio

disck

Explanation:

that are very good at all time and a very high school football game to get a new case

In English, you're asked to write a reflective narrative about a life event with a deeper impact than initially visible. Describe the event, your reaction, its deeper meaning, and how it shaped you.

This question pertains to reflective writing, a style typically used in English subject coursework. The task is about developing a narrative based on a memorable experience in your life that had a deeper impact than initially visible. Begin by selecting an event, which while appearing simple, had profound implications in retrospect. Describe the event in detail (who, what, where, when), discussing your personal reaction at the time. Then, explain its deeper meaning or the impact it had on you. Drawing conclusions about how this event shaped your perspectives or behaviours would constitute the reflective element of your narrative.

https://brainly.com/question/33018651

#SPJ2

Answer:

I answered in the last question you asked

Answer:

No. Moles  = 2.142   mole

Answer

Q = mcΔT

Qwater = -Qmetal

(100 g)(4.18 J/g°C)(25°C - 20°C) = -(50 g)c(25°C - 90.0°C)

2090 J = (3250 g °C)c

c = 0.643 J/g °C