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Alborosie
2 years ago
12

What volume is equivalent to 0.0015 m3?

Chemistry
1 answer:
Natali [406]2 years ago
8 0

1.5 x 10⁶mm³

Explanation:

 Here we are to convert m³ to mm³ or cm³ to see the correct option.

100cm = 1 m

1000mm = 1m

Converting to cm³ from m³;

  0.0015m³ = 1.5 x 10⁻³m³

Now:

    1.5 x 10⁻³  x m x m x m x \frac{100cm}{1m} x  \frac{100cm}{1m} x \frac{100cm}{1m}

    = 1.5 x 10³cm³

Also;

1.5 x 10⁻³  x m x m x m x \frac{1000mm}{1m} x  \frac{1000mm}{1m} x \frac{1000mm}{1m}

  =   1.5 x 10⁶mm³

learn more:

Volume brainly.com/question/2690299

#learnwithBrainly

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Find the concentration of H+ ions at a pH = 11 and pH = 6. Then divide the concentration of H+ ions at a pH = 11 by the of H+ io
andrew11 [14]

Explanation:

When pH of the solution is 11.

pH=-\log[H^+]

11=-\log[H^+]

[H^+]=1\times 10^{-11} M..(1)

At pH = 11, the concentration of H^+ ions is 1\times 10^{-11} M.

When the pH of the solution is 6.

pH=-\log[H^+]'

6=-\log[H^+]'

[H^+]'=1\times 10^{-6} M..(2)

At pH = 6, the concentration of H^+ ions is 1\times 10^{-6} M.

On dividing (1) by (2).

\frac{[H^+]}{[H^+]'}=\frac{1\times 10^{-11} M}{1\times 10^{-6}}=1\times 10^{-5}

The ratio of hydrogen ions in solution of pH equal to 11 to the solution of pH equal to 6 is 1\times 10^{-5}.

Difference between the H^+ ions at both pH:

1\times 10^{-6} M-1\times 10^{-11} M=9.99\time 10^{-7} M

This means that Hydrogen ions in a solution at pH = 7 has 9.99\time 10^{-7} M ions fewer than in a solution at a pH = 6

6 0
2 years ago
Read 2 more answers
Which two statements explain how a cell's parts help it get nutrients?
olchik [2.2K]

Answer:

A and i think D

Explanation:

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2 years ago
The chemical equation below shows the burning of magnesium (Mg) with oxygen (O2) to form magnesium oxide (MgO). 2Mg + O2 Right a
Nadusha1986 [10]

Answer:

64.0

Explanation:

2Mg+O2 ---> 2MgO

use dimentional analysis to find the amount of moles of O2 needed first

4.00molMg x 1.00mol O2/ 2.00 mol Mg=. 2.00 mol O2

using the coefficients you can see the mole ratio for O2:Mg the mole ratio is 1:2 which is why there is 1 mole on the top for 2 moles on the bottom. The Mg would cancel and multiply 4 by 1 then divide by 2, or multipy 4 by 1/2

Now that you have the moles of O2 you use the molar mass to find the grams in 2 moles of O2

2.00 mol O2 x 32.0g/1.00 mol = 64.0 g

multiply 2 by 32

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2 years ago
A student created a ball and stick molecule during the lesson on molecules and atoms. Examine the model shown here. Which statem
Rzqust [24]

A molecular model is a three dimensional representation of a molecule. It shows all the atoms in the molecule.

The statements that can be supported by the information in the model are;

  • The model shows a molecule with 14 atoms
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We can see from the model shown that there are white balls and black balls. Each ball represents an atom of an element.

There are 14 balls in total meaning that there are 14 atoms presents. Each color of balls stands for an element. There are two different colors in the model implying that there are two different kinds of elements in the molecule.

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4 0
1 year ago
Line spectra from all regions of the electromagnetic spectrum, including the Paschen series of infrared lines for hydrogen, are
Nastasia [14]

Answer:

The correct answer is option D.

Explanation:

Using Rydberg's Equation for hydrogen atom:

\bar{\nu}=\frac{1}{\lambda}=R_H\left(\frac{1}{n_i^2}-\frac{1}{n_f^2} \right )

Where,

\bar{\nu} = Wave number

\lambda = Wavelength of radiation

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n_f = Higher energy level

n_i= Lower energy level

We have:

n_f=5, n_i=3

R_H=1.096776\times 10^7 m^{-1}

\frac{1}{\lambda}=1.096776\times 10^7 m^{-1}\times \left(\frac{1}{3^2}-\frac{1}{5^2} \right )

\frac{1}{\lambda}=1.096776\times 10^7 m^{-1}\times \frac{16}{225}

\lambda =1.2822\times 10^{-6} m=1282.2 nm\approx 1282 nm

(1 m= 10^9 nm)

The wavelength of the photon emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3 is 1282 nm.

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