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2 years ago

How many grams of Cl are in .46 moles of Cl?

1 answer:

4 0

From the periodic table you know that Cl has a molar mass of 35.35 g/m. So if you just set up the dimensional analysis as so: (.46 moles Cl)*(35.45 grams Cl/1 mole Cl) and multiply out you get 16 grams of Cl if you follow the sig figs and 16.307 if you don't.

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The distance from the top of one sound wave to the top of the next sound wave is called a (n)

Vikki [24]

Answer:

The answer is wavelength

Explanation:

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3 years ago

In a hydrogen atom, the electron and the proton are seperated by about 0.5 angstroms, 5.0×10−11 m. what is the acceleration of a

nadya68 [22]

The charge of proton and electron is equal in magnitude that is $1.6\times 10^{-19} C$ . The distance between electron and proton is $0.5 \AA$ or $5\times 10^{-11} m$ .

Force exerted on electron by proton is calculated as follows:

$F= \left | \frac{kq_{e}q_{p}}{r^{2}} \right |$

Here, k is Coulomb's constant, $q_{p}$ is charge on proton, $q_{e}$ charge on electron and r is distance between them.

Putting the values,

$F= \left | \frac{(8.99\times 10^{9}N m^{2}/C^{2})(1.6\times 10^{-19} C)(1.6\times 10^{-19} C)}{(5\times 10^{-11} m)^{2}} \right |=9.2\times 10^{-8} N$

Now, according to second law of Newton,

$F=m_{e}a$

Here, $m_{e}$ is mass of electron and a is acceleration.

Also, $1 N=1 kgm/s^{2}$

Rearranging,

$a=\frac{F}{m_{e}}=\frac{9.2\times 10^{-8} Kg m/s^{2}}{9.11\times 10^{-31} kg}=1.01\times 10^{23} m/s^{2}$

Thus, the acceleration of an electron in this atom is $1.01\times 10^{23} m/s^{2}$ .

7 0

3 years ago

Read 2 more answers

Compare the occurrence of heavier elements on earth and the universe.

k0ka [10]

By definition, a heavy element is a specific kind of element with a larger atomic mass. An element could be considered as "heavy" if its atomic number is greater already than 92. One of the known heavy elements on Earth is Tennessine and Tungsten while in the universe are lithium-5 and berryllium-8.

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3 years ago

For the reaction at equilibrium 2so3 2so2 + o2 (dhºrxn= 198 kj/mol), increasing the reaction temperature would:

Mama L [17]

Increase the delta H since it is already an endothermic reaction and would take in more energy aka heat

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2 years ago

Please help someone, giving 50 points and marking brainliest.

babunello [35]

Answer:

i have no clue

Explanation:

tell me when you get it

6 0

2 years ago