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Xelga [282]
3 years ago
14

Suppose you are performing a gas-producing reaction with an unknown metal, X . X ( s ) + 2 H C l ( a q ) ⟶ X C l 2 ( a q ) + H 2

( g ) A sample of 0.243 g of the unknown metal produces 76.9 mL of H 2 gas. The gas is collected over water at an atmospheric pressure of 768.3 mm Hg at 23 oC, at which the vapor pressure of water is 21.1 mm Hg. Assume that the hydrogen gas behaves ideally. What is the experimental value for the molar mass of the metal in g/mol?
Chemistry
1 answer:
maksim [4K]3 years ago
6 0

Answer:

600,000,000,000,000,000

Explanation:

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275 g of a compound with the molecular formula ccl2f2 contains how many molecules of the compound
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In order to calculate the mass of an element in a given mass of a compound the mass of the compound is multiplied by the mass
Allushta [10]
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Chlorine has two isotopes, 35Cl and 37Cl; 75.77 % of chlorine is 35Cl and 24.23 % is 37Cl. The atomic mass of 35Cl is 34.969 amu
storchak [24]

Answer:

35.4528731 amu

Explanation:

To appropriately get the atomic mass unit of chlorine, we can get the answer using the masses from the isotopes. This can be obtained as follows. What we do is that we multiply the percentage compositions by the masses.

Now let’s do this.

[75.77/100 * 34.969] + [24.23/100 * 36.966]

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3 0
3 years ago
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Snezhnost [94]

Answer:

a) The lewis dot structure is shown in the image attached to this answer

b) The formal charge on each of the atoms is zero

c) bromine has an oxidation state of +5 while fluorine has an oxidation state of -1

d) 90 degrees

e) Square Pyramidal

f) polar bonds

g) polar molecule

Explanation:

The molecule BrF5 has a formal charge of zero. It exhibits an sp3d2 hybridization state with a square pyramidal geometry. The bond angle in the molecule is 90 degrees. It is a molecule of the type AX5E. The oxidation state of bromine is +5 while that of fluorine is -1.

The Br-F bonds are polar. The overall molecule is polar due to asymmetric charge distribution concentrating on the central atom since the molecule is square pyramidal.

3 0
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QveST [7]

Answer:

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Explanation:

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According to this question, a metalloid

4 0
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