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aev [14]
4 years ago
10

A compound has an empirical formula of C2H6. What additional piece of evidence is needed to determine the molecular formula?

Chemistry
2 answers:
Snezhnost [94]4 years ago
4 0

It is d). Molar mass of the compound.



I just took the quiz.

iragen [17]4 years ago
3 0
I think the correct answer from the choices listed above is option A. The additional piece of information needed to determine the molecular formula would be percent composition of carbon. A molecular formula is <span>a formula that gives the number of atoms of each of the elements present in one molecule of a specific compound.</span>
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What is the equilibrium constant expression for the following reaction?
Zanzabum

Answer:

Keq = [CO][Cl₂]/[COCl₂].

Explanation:

For the balanced reaction:

COCl₂(g) ⇄ CO(g) + Cl₂(g).

The equilibrium constant can be expressed as concentration equilibrium constant (Kc) or pressure equilibrium constant (Kp).

The equilibrium constant is the ratio of the product of products concentrations to the product of the reactants concentrations.

Keq = [CO][Cl₂]/[COCl].

8 0
4 years ago
Which element is in group 2 and period 7 of the periodic table
bekas [8.4K]
Hey
      Sorry, But There Is No 7th Element in group two. only six which is Radium.
     ~Spades15
3 0
4 years ago
If the theoretical yield of the reaction above corresponds to 99.2g and the actual yield was 60.9 g, calculate the percent yield
Snowcat [4.5K]

Answer:

61.4 %

Explanation:

Let's consider a generic chemical reaction.

Reactants ⇒ Products

The theoretical yield is the maximum mass of product that theoretically can be obtained from the chemical reaction.

The actual yield is the mass of the product obtained from the reaction.

The percent yield is:

Percent yield = actual yield / theoretical yield × 100%

Percent yield = 60.9 g / 99.2 g × 100% = 61.4 %

5 0
3 years ago
Fill in the coefficients that will balance the following reaction:
dalvyx [7]

Answer:

C₃H₈₍g₎ + 5O₂₍g₎→  3CO₂₍g₎ + 4H₂O₍l₎

Explanation:

Propane is an alkane that burns in enough oxygen to produce carbon (iv) Oxide and heat as the only by products. Balancing the equation: The number of atoms of each kind on either side should be equal. Hydrogen on the left has eight atoms same as the right side after balancing, oxygen has 10 while carbon has 3 on each side.

6 0
3 years ago
Read 2 more answers
Coffee has a pH of about 5. Therefore, coffee is -
tekilochka [14]
The answer is somewhat acidic
8 0
3 years ago
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