A 0.08425 g sample of gas occupies 10.0-mL at 292.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?

Identify the geometry around each carbon atom. a)trigonal pyramidal b)bent c)tetrahedral d)linear e)trigonal planar Is the compound polar or nonpolar?

Use PV = nRT to solve for n = number of mols. Then n = grams/molar mass. You know grams and n, solve for molar mass.

Take 100 g sample which gives
13.068 g C
86.932 g Br.

Convert grams to mols
mols C = 13.068/atomic mass C.
mols Br = 86.932/atomic mass Br.
Find the ratio of C to Br with the smaller value being 1.00. The easy to do this is to divide the smaller value by itself; divide the other number by the same small number to find empirical formula which will be CxBry.
empirical mass x z = molar mass(from above)
Solve for x which becomes
(empirical formula)x = molecular formula.

Post your work if you get stuck.

Well, I guess it's time for me to put on my chemistry clown shoes and make a hilarious attempt at answering this question!

To determine the molecular formula of the compound, we first need to calculate the number of moles of carbon and bromine in the sample. Let's start by finding the moles of carbon.

The molar mass of carbon (C) is 12.01 g/mol. So, the mass of carbon in the sample is:

0.08425 g * (13.068% C / 100) = 0.011 g C

Now let's determine the moles of carbon:

moles of C = mass of C / molar mass of C = 0.011 g C / 12.01 g/mol = 9.16 x 10^-4 moles of C

Next, let's calculate the moles of bromine (Br):

The molar mass of bromine (Br) is 79.90 g/mol. The mass of bromine in the sample is:

0.08425 g * (86.932% Br / 100) = 0.0733 g Br

Now, let's determine the moles of bromine:

moles of Br = mass of Br / molar mass of Br = 0.0733 g Br / 79.90 g/mol = 9.17 x 10^-4 moles of Br

Now, we can determine the empirical formula by dividing each number of moles by the smallest number of moles:

C: 9.16 x 10^-4 moles / 9.16 x 10^-4 moles = 1
Br: 9.17 x 10^-4 moles / 9.16 x 10^-4 moles ≈ 1

So, the empirical formula is CBr.

To find the molecular formula, we need to know the molar mass of the compound. Unfortunately, the molar mass is not provided in the question. So, without that information, we can't determine the exact molecular formula.

As for the geometry around each carbon atom, since CBr has only one carbon atom, the question is asking for the geometry of the compound. For that, we need to know the arrangement of atoms around the carbon atom, which is not given in the question. So, I'm afraid I can't provide a specific answer for the geometry.

Regarding the polarity of the compound, it is difficult to determine without knowing the exact molecular formula. The polarity of a compound depends on the arrangement of atoms and their respective electronegativities. So, without the molecular formula, we can't determine whether the compound is polar or nonpolar.

I hope my attempt at chemistry humor made you smile, even if I couldn't fully answer the question. If you have any more queries, feel free to ask, and I'll do my best to clown around with the answers!

To determine the molecular formula of the compound, we first need to find the number of moles of each element present in the sample.

1. Calculate the number of moles of carbon (C):
Mass of C = Percentage of C * Total mass of sample
Mass of C = 13.068% * 0.08425 g = 0.011 g

Moles of C = Mass of C / Molar mass of C
Molar mass of C = 12.01 g/mol
Moles of C = 0.011 g / 12.01 g/mol = 0.000916 moles

2. Calculate the number of moles of bromine (Br):
Mass of Br = Percentage of Br * Total mass of sample
Mass of Br = 86.932% * 0.08425 g = 0.07327 g

Moles of Br = Mass of Br / Molar mass of Br
Molar mass of Br = 79.90 g/mol
Moles of Br = 0.07327 g / 79.90 g/mol = 0.000917 moles

3. Determine the simplest whole-number ratio of moles:
C:Br ratio = 0.000916 moles : 0.000917 moles, which is approximately 1:1

Therefore, the molecular formula of the compound is CBr.

To identify the geometry around each carbon atom, we need more information about the compound. The provided options (trigonal pyramidal, bent, tetrahedral, linear, and trigonal planar) are not suitable for carbon since they describe the geometry around central atoms in a molecule.

Regarding whether the compound is polar or nonpolar, we cannot determine this without additional information. The molecular geometry and the electronegativity of the atoms involved will help determine the overall polarity of the compound.

To determine the molecular formula of the compound, we need to use the given information about the percentage composition of carbon and bromine in the compound.

First, we need to convert the mass of carbon and bromine into moles. We can assume we have 100 g of the compound, which means we have 13.068 g of carbon and 86.932 g of bromine.

Then, we calculate the number of moles of each element. The molar mass of carbon (C) is 12.01 g/mol, and the molar mass of bromine (Br) is 79.90 g/mol.

Number of moles of carbon (C):
moles of C = mass of C / molar mass of C
moles of C = 13.068 g / 12.01 g/mol

Number of moles of bromine (Br):
moles of Br = mass of Br / molar mass of Br
moles of Br = 86.932 g / 79.90 g/mol

Next, we need to find the simplest whole number ratio between the moles of carbon and bromine. To do this, we divide the moles of each element by the smallest value obtained.

Dividing moles of carbon by the smallest value:
moles of C / smallest value = 13.068 g / 12.01 g/mol

Dividing moles of bromine by the smallest value:
moles of Br / smallest value = 86.932 g / 12.01 g/mol

After obtaining the simplest whole number ratio, we can interpret it as the subscripts in the molecular formula.

Finally, to determine the geometry around each carbon atom, we need to know the total number of electron domains (bonding pairs and lone pairs) around each carbon in the compound. Based on this information, we can identify the geometry.

To determine if the compound is polar or nonpolar, we need to consider the molecular geometry and the presence of polar bonds. If the molecule has polar bonds and is asymmetric, it will be polar. If the molecule has polar bonds but is symmetric, it will be nonpolar.

Please provide the smallest value between moles of C and moles of Br so that I can continue with the calculations.

Br7C