How many moles of atoms are in 9.00 g of 13c? express your answer numerically in moles?

Answers

Answer 1
Answer:

Number of moles is defined as the ratio of given mass in grams to the molar mass of compound.

Number of moles =(Given mass in g)/(Molar mass)

Now, put the value of given mass of ^(13)C in grams and molar mass of ^(13)C in g/mol i.e. 13 g/mol.

Thus,

number of moles =(9.00 g)/(13 g/mol)

= 0.692 mol

Hence, number of moles of ^(13)C = 0.692 mol


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Is 3.5:Aqueous solutions of iron(III) bromide and ammonium carbonate react to form a precipitate. Answer the follwingquestions with regards to this reaction.a) Write the molecular equation for this reaction byTranslating the two reactants into their chemical formulae.Predict the products.Label all the states.Balance the reaction.

Models can have the same
general appearance as real-ufe
objects.
True or false

Answers

Answer:

true

Explanation:

Answer:

True

Explanation:

Because its true

Calculate the wavelength of A 75 kg athlete running a 7.0-minute mile

Answers

Answer:

\lambda =2.31x10^(-36)m

Explanation:

Hello,

In this case, since the Broglie's wavelength for bodies is defined via:

\lambda =(h)/(mv)

Whereas h accounts for the Planck's constant, m the mass and v the velocity, which is:

v=(1mile)/(7.0min)*(1609.34m)/(1mile)*(1min)/(60s)=3.83(m)/(s)

Thus, the wavelength turns out:

\lambda =(6.63x10^(-34)kg(m^2)/(s) )/(75kg*3.83(m)/(s) ) \n\n\lambda =2.31x10^(-36)m

Best regards.

Of the following, which element has the highest first ionization energy?Li
Cs
At
F​

Answers

There are free tutor on my website just got to freetutor.com
I think it’s Li but I don’t totally know

Which of the following statements is true with regard to transverse and longitudinal waves?Group of answer choices

Both transverse waves and longitudinal waves have motion parallel to velocity.

Both transverse waves and longitudinal waves have motion perpendicular to velocity.

Transverse waves have motion parallel to velocity, while longitudinal waves have motion perpendicular to velocity.

Transverse waves have motion perpendicular to velocity, while longitudinal waves have motion parallel to velocity.

Answers

The true statement is that Transverse waves have motion perpendicular to

velocity, while longitudinal waves have motion parallel to velocity.

What is a wave?

This is a disturbance which travels through a medium and transports

energy in the process.

Transverse waves have motion which are perpendicular to the velocity

while the longitudinal waves move in the direction of the velocity which is

why they are regarded as being  parallel to each other.

Read more about Waves here brainly.com/question/15663649

Answer:

D (The last answer)

Explanation:

In a transverse wave, particles oscillate perpendicular to the direction of wave motion.

In a longitudinal wave, the oscillations of particles are parallel to the direction of propagation.

How many chlorine atoms are there in 2 molecules of ICl?

Answers

Answer: 38 chlorine atoms are in 3 molecules of HCI

Explanation:

Final answer:

In 2 molecules of ICl, there would be 2 atoms of Chlorine, as the subscript of Chlorine in the compound ICl is 1.

Explanation:

In a compound, the subscript of an element indicates the number of atoms of that element present per molecule of the compound. For the ICl compound, there is one atom of Chlorine in one molecule. Therefore, in 2 molecules of ICl, there would be 2*1 = 2 atoms of Chlorine.

Learn more about Atoms in a Molecule here:

brainly.com/question/15172278

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Be sure to answer all parts. (a) How many atoms are directly bonded to the central atom in a trigonal planar molecule?

i. two
ii. three
iii. six
iv. eight

(b) How many atoms are directly bonded to the central atom in a trigonal bipyramidal molecule?

i. three
ii. four
iii. five
iv. six

(c) How many atoms are directly bonded to the central atom in an octahedral molecule?

i. three
ii. four
iii. six
iv. eight

Answers

Answer:

a) ii

b)iii

c)iii

Explanation:

three atoms directly bonded then only it is possible to achieve trigonal planar

trigonal bipyramidal means five atoms should attach to central atom

for octahedral six atoms must directly connected to central atom