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antoniya [11.8K]
3 years ago
14

If the empirical formula of a compound is C2H5 and the Molecular mass is 87g/mol what is the molecular formula?

Chemistry
1 answer:
frez [133]3 years ago
6 0
C6H15, C2H5 has a molar mass of 29g/mol. 87 divided by 29 is 3. Then multiply each element subscript by 3
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Saturated hydrocarbons contain carbon and hydrogen atoms that have ____ bond(s). \<br> 1 or 2?
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Saturated has only 1 c to c bond while unsaturated has 2 or 3 c to c bond
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3 years ago
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Which describes density?
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Answer:

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... For example, the density of air is 1.2 kilograms per cubic metre.

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2 years ago
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. The net ionic equation for the reaction that occurs during the titration of nitrous acid with sodium hydroxide is (a) HNO2 Na
hjlf

Answer:

H^+_{(aq)}+OH^{-}_{(aq)}\rightarrow H_2O_{(l)}

Explanation:

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations.

Only the species which are present in aqueous state dissociate.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

(a)

The balanced molecular equation will be,

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The complete ionic equation in separated aqueous solution will be,

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H^+_{(aq)}+OH^{-}_{(aq)}\rightarrow H_2O_{(l)}

6 0
2 years ago
(34.6785 x 5.39) + 435.12
Shalnov [3]
To solve this, we should follow order of operations. To start, we should multiply the values inside of the parentheses.

(34.6785*5.39)+435.12
186.917115+435.12

Now, we should add the 2 values we are left with together.

 186.917115
<span><u>+435.120000</u>
</span>  622.037115

Using the math above, we can see that this expression is equal to 622.037115.
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(NH4)3PO3 - molar mass
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