3 years ago

El matraz de destilación no se puede llenar para llevar a cabo la destilación. ¿Por qué?

Chemistry

1 answer:

jeka57 [31]3 years ago

7 0

Explanation:

please write correct answer

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I've been stuck with this for like an hour, please help.

solniwko [45]

Explanation:

Molar mass of Hg = 200.59g/mol.

Therefore Moles = Mass / Molar mass

= 100g / (200.59g/mol) = 0.499mol.

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3 years ago

1. Warm air puts more pressure on Earth than cooler air does.<br> True<br> False

Novosadov [1.4K]

Answer:

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3 years ago

In general the human ear is most sensitive to sounds at 2500 hz. Assuming that sound moves at 330m/s what is the wavelength of s

elena-s [515]

Answer:

0.132 meters is the wavelength of sounds to which people are most sensitive.

Explanation:

Frequency of the sound human ears are most sensitive to = $\nu = 2500Hz=2500 s^{-1}$

Speed of the sound wave = S = 330 m/s

Wavelength of the sound human ears are most sensitive to = $\lambda = ?$

$\nu=\frac{S}{\lambda }$

$2500 s^{-1}=\frac{330 m/s}{\lambda }$

$\lambda =\frac{330 m/s}{2500 s^{-1}}=0.132 m$

0.132 meters is the wavelength of sounds to which people are most sensitive.

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3 years ago

How many grams is in a 5 pound sample? express your answer in scientific notation with four significant figures. (1 pound = 453.

d1i1m1o1n [39]

The answer is A. I hope this helps

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3 years ago

Read 2 more answers

How many grams of NaOH are needed to make 500 mL of a 2.5 M NaOH solution

Veronika [31]

The number of grams of NaOH that are needed to make 500 ml of 2.5 M NaOH solution

calculate the number of moles =molarity x volume/1000

= 2.5 x 500/1000 = 1.25 moles

mass = moles x molar mass of NaOH

= 1.25 x40= 50 grams of NaOH

4 0

4 years ago