Hich formula can be used to calculate the molar mass of hydrogen peroxide (H2O2)? (5 points)

Chemistry

2 answers:

Alexxandr [17]2 years ago

6 0

Answer:

Answers are 34.6 grams and objective d.

mina [271]2 years ago

4 0

Answer:

which formula can be used to calculate the molar mass of hydrogen peroxide (H2O2)?

» d.2 x molar mass of H + 2 x molar mass of O

Explanation:

Since we've two hydrogen atoms and two oxygen atoms, we multiply each mass by 2

$= (2 \times hydrogen) + (2 \times oxygen) \\ = (2 \times 1) + (2 \times 16) \\ = 2 + 32 \\ = 34 \: g$

Which of the following statements best defines the actual yield of a reaction?

» d.The ratio of measured yield over stoichiometric yield

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Alkynes are reduced to trans alkenes by a process called dissolving metal reduction. The reaction uses sodium or lithium metal a

NISA [10]

Answer:

Explanation:

The movement of the electrons is illustrated in the picture attached to this answer. It is a four-step reaction mechanism.

First STEP: The first step involves the transfer of an electron from sodium to form a radical anion.

Second STEP: This radical anion then removes a proton/hydrogen from ammonia in a bid to neutralize itself (hence the hydrogen becomes bonded to the anion).

Third STEP: The sodium (from NaNH₂ formed) transfers an electron again to produce a vinyl carbanion.

Fourth STEP: The carbanion then removes a proton/hydrogen from ammonia (like in the second step) to form a neutral trans-alkene.

NOTE: The circled numbers denote each step while the mechanism on the left represents the use of any alkyl group (R and R') while the mechanism on the right assumes both alkyl groups are methyl. Hence, 2-butyne started the reaction and the final product was trans-2-butene.