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3 years ago

To convert from mass of X to liters of Y in any stoichiometry problem, the following steps must be followed

Chemistry

1 answer:

gizmo_the_mogwai [7]3 years ago

6 0

Answer:

A. mass X to moles X to moles Y to liters Y

Explanation:

Remember: moles are the great converter. They're basically just a made-up concept meant to facilitate conversions!

Starting with mass X, you must then convert to moles X.

Once you have moles X, convert moles Y. Think of a chemical equation: the mole ratios are the coefficients!

Once you have moles Y, all you have to do is convert to liters Y. You can do this with the molarity equation M = mol/L, or if it's a gas at STP you know the conversion!

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What is e cell (in units of volts) for a galvanic cell constructed from barium and manganese electrodes?

gulaghasi [49]

Main Answer: The standard electrode potential of galvanic cell constructed from barium and manganese electrode is 4.097.

Explanation:

When the galvanic cell constructed between Manganese and Barium, the half reactions will be as follows:

Mn2+(aq) + 2e-⟶ Mn(s) E1 = −1.185

Ba2+(aq) + 2e-⟶ Ba(s) E2 = −2.912

By considering the above two reactions, the standard electrode potential can be calculated.

The galvanic cell standard electrode potential is given by E1 + E2 = 1.185 + 2.912 = 4.097 volts

What is standard electrode potential?

Standard electrode potential is defined as the measure of reducing power of any compound or element. Its units are volts.

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1 year ago

When light waves pass through solids, the speed of the wave ___________.

bearhunter [10]

Answer:

i think that the answer is that it would decrease

Explanation:

hope this helps

sorry if the answer is wrong

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2 years ago

If you place a glass rod over a burning candle, the glass turns

gladu [14]

A. the wax is a both; 1. physical change-solid to liquid.
2. chemical change- burned to CO2 + H20 + heat + carbon as seen as black on the rod
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2 years ago

What would happen if the sand dunes in an area were destroyed?

Komok [63]

Answer:

Our beaches would be unprotected

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- surfertoday

Natural sand dunes play a vital role in protecting our beaches, coastline and coastal developments from coastal hazards such as erosion, coastal flooding and storm damage. Sand dunes protect our shorelines from coastal erosion and provide shelter from the wind and sea spray.

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2 years ago

Read 2 more answers

Complete the sentences about heme. Some terms will not be used. The prosthetic group of hemoglobin and myoglobin is . The organi

nevsk [136]

Explanation:

Haemoglobin consists of heme unit which is comprised of an $Fe^{2+}$ and porphyrin ring. The ring has four pyrrole molecules which are linked to the iron ion. In oxyhaemoglobin, the iron has coordinates with four nitrogen atoms and one to the F8 histidine residue and the sixth one to the oxygen. In deoxyhaemoglobin, the ion is displaced out of the ring by 0.4 Å.

The prosthetic group of hemoglobin and myoglobin is - Heme

The organic ring component of heme is - Porphyrin

Under normal conditions, the central atom of heme is - $Fe^{2+}$

In deoxyhemoglobin , the central iron atom is displaced 0.4 Å out of the plane of the porphyrin ring system.

The central atom has six bonds: four to nitrogen atoms in the porphyrin, one to a histidine residue, and one to oxygen.

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2 years ago