What volume of 0.123 m naoh, in milliliters, contains 25.0 g of naoh?

Related Questions

How many electrons does each oxygen atom gain during the course of this reaction?

The chemical reaction is the oxidation of calcium metal by molecular oxygen. During the reaction, calcium metal is oxidized, that is, loses electrons and oxygen is reduced, that is gains electrons.
During the reaction, the calcium atom donate two electrons in order to become stable and the oxygen atom accepts these two electrons. Therefore, during the reaction, EACH OXYGEN ATOM GAINS TWO ELECTRONS.

The rate constant for a reaction is measured as a function of time. A plot is created by graphing ln(k) on the y-axis and 1/T on the x-axis, and a best fit line with a slope of -10,473 K is obtained. Based on this data what is the activation energy of this reaction (in kJ/mol)?

The  activation energy of this reaction (in kJ/mol) should be  1.2596 kJ/mol

Calculation of activation energy:

In terms of chemistry, the minimum amount of energy i.e. needed to activate the atoms or molecules with a condition in which they can undergo a chemical transformation.

Here we considered the natural logarithm of the former equation.

ln k = ln A - Ea/R (1/T)

Here

k is  rate constant

A is  pre-exponential factor

Ea is activation energy

R is  ideal gas constant

T is absolute temperature

Now

In the plot of ln k vs. 1/T, the slope is -Ea/R.

So,

-10,473 K = -Ea/R

10,473 K = Ea/8.3145 J/mol.K

Ea = 1259.6 J/mol

1.2596 kJ/mol

Explanation:

Let's consider the Arrhenius equation.

where,

k: rate constant

A: pre-exponential factor

Ea: activation energy

R: ideal gas constant

T: absolute temperature

We can take the natural logarithm of the former equation.

ln k = ln A - Ea/R (1/T)

In the plot of ln k vs. 1/T, the slope is -Ea/R. Then,

-10,473 K = -Ea/R

10,473 K = Ea/8.3145 J/mol.K

Ea = 1259.6 J/mol = 1.2596 kJ/mol

A. Electromagnetic waves must travel through a medium, but mechanical waves do not require a medium.

B. Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium.

C. Mechanical waves sometimes travel through a vacuum, and electromagnetic waves sometimes travel through matter.

D. Electromagnetic waves travel mostly through matter, and mechanical waves travel mostly through a vacuum.

B) Mechanical waves must travel through a medium, electromagnetic waves do not require a medium.

Explanation:

1). Mechanical waves:A mechanical wave is a wave that propagates through a material medium.As the wave travels through the medium,the particles that make up the medium must undergo displacements of various kinds, depending on the nature of the waves.They are of two types: a)Transverse wave

b)Longitudinal wave

a). Transverse waves:In transverse waves,the particle displacement is perpendicular to the direction of the wave propagation.This particles do not move along with the wave,they simply oscillate up and down about the individual position as the wave passes by.E.g,waves produced on a string.

b). Longitudinal waves:In a longitudinal wave,the particle displacement is parallel to the direction of the wave propagation.The particle oscillate back and forth about their equilibrium position.E.g, Sound wave in a gas.

2). Electromagnetic waves:This is a type of wave that require a physical medium for propagation and hence can travel through a vacuum.E.g,Light waves.

The answer is B because mechanical waves require an elastic/flexible medium to transmit the energy while electromagnetic waves don’t require a medium

What is an ion and what is an cation

Ion - an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Cation - a positively charged ion.

Consider the reaction below 2SO2(g) + O2(g) ⇌ 2SO3(g) At 1000 K the equilibrium pressures of the three gases in one mixture were found to be 0.562 atm SO2, 0.101 atm O2, and 0.332 atm SO3. Calculate the value of Kp for the reaction.

Answer: for the reaction is 3.45

Explanation:

The balanced chemical reaction is:

At eqm.   0.562 atm   0.101 atm    0.332 atm

As we are given that:

The expression of for above equation follows:

Putting values in above equation, we get:

The value of for the reaction is 3.45

In the following reaction, how many grams of nitroglycerin C3H5(NO3)3 will decompose to give 25 grams of CO2? 4C3H5(NO3)3(l) 12CO2(g) + 6N2(g) + 10H2O(g) + O2(g) The molar mass of nitroglycerin is 227.0995 grams and that of carbon dioxide is 44.01 grams.

Answer : The mass of nitroglycerin will be, 43.15 grams

Explanation :

First we have to calculate the moles of

Now we have to calculate the moles of nitroglycerin.

The balanced chemical reaction is,

From the balanced reaction we conclude that

As, 12 moles of obtained from 4 mole of

So, 0.57 moles of obtained from mole of

Now we have to calculate the mass of nitroglycerin.

Therefore, the mass of nitroglycerin will be, 43.15 grams

43.00 grams I'm pretty sure

Think about your house, condo or apartment. What part of your home would be like the mitochondria of the cell? Why?reproduction all living things need cells

in our cell, mithocondria provide the energy required for the cells to do their daily actiivities. If it's compared to the parts in our home, i think it would be the electric box. The electric box acted as a source of power for the house to run its TV, Lamp, heater, basically almost everything Hope this helps. Let me know if you need additional help!

What is the atomic weight of an element if 4 grams of it contains 2.98 x 10^22 atoms?

M = 4 g;  N = 2.98 * 10^22
Avogadro constant:  L = 6.022 * 10^23
Number of moles:
n = 2.98 * 10^22  : 6.022 * 10^23 = 0.298 * 10^23 : 6.022 * 10^23 =
= 0.0495 moles
Molar mass:
M = m/n = 4 g / 0.0495 = 80.8 ≈ 80
N=amount  in moles
N=amount in numbers=2.98x10^22
m= mass in grams
M=molar mass in g/mol
Now,
n=N/L
=2.98x10^22/6.022x10^23
=0.0495 mol ≈0.05 mol
Then,
M=m/n
=4/0.05
=80 g/mol
The element is Br

True or false the first species to colonize newly exposed land are called primary species?