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Anastasy [175]
3 years ago
15

If the mixing ratio of a parcel of air is 6 grams per kilogram and the relative humidity is 25 percent, the saturation mixing ra

tio is ______ grams per kilogram.
Chemistry
1 answer:
Y_Kistochka [10]3 years ago
4 0

Answer: -

24 grams per kilogram.

Explanation: -

We know that

The mixing ratio = actual (measured) mass of water vapor (in parcel) in grams / mass of dry (non water vapor) air (in parcel) in kilogram

The saturation mixing ratio = mass of water vapor required for saturation (in parcel) in grams/ mass of dry (non water vapor) air (in parcel) in kilograms

Relative humidity = actual (measured) water vapor content/ maximum possible water vapor amount (saturation)

Thus saturation mixing ratio = Mixing ratio / relative humidity

= 6 / (25/100)

= 24

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Answer: kerosene, coal

Explanation:

These are renewable resources obtained from petroleum, kerosene was used in olden times to light the lamps and are still used today for lighting purposes. Coal was used in trains to produce steam( steam powered trains).

8 0
3 years ago
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In 1901, Thomas Edison invented the nickel-iron battery. The follwing reaction takes place in the battery.
lys-0071 [83]

Answer: The number of moles of Fe(OH)_2  produced are, 3.60 moles.

Explanation :

First we have to calculate the limiting and excess reagent.

The balanced chemical equation is:

Fe(s)+2NiO(OH)(s)+2H_2O(l)\rightarrow Fe(OH)_2(s)+2Ni(OH)_2(aq)

From the balanced reaction we conclude that

As, 1 mole of Fe react with 2 mole of NiO(OH)

So, 3.60 moles of Fe react with 3.60\times 2=7.2 moles of NiO(OH)

From this we conclude that, NiO(OH) is an excess reagent because the given moles are greater than the required moles and Fe is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of Fe(OH)_2

From the reaction, we conclude that

As, 1  mole of Fe react to give 1 mole of Fe(OH)_2

So, 3.60 mole of Fe react to give 3.60 mole of Fe(OH)_2

Therefore, the number of moles of Fe(OH)_2  produced are, 3.60 moles.

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3 years ago
Insert the values from the question above for x, y, z, & n into KxFey(C204)z nH20 anod provide the correct coefficients to b
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When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
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Marigold, Inc. uses activity-based costing as the basis for information to set prices for its six lines of seasonal coats.
agasfer [191]

Answer:

Designing= $42 per designer hour

Sizing and cutting= $26.85 per machine hour

Stitching and trimming= $17.75 per labor hour

Wrapping and packing= $10.5 finished unit

Explanation:

<u>To calculate the activity-based overhead rates, we need to use the following formula:</u>

Predetermined manufacturing overhead rate= total estimated overhead costs for the period/ total amount of allocation base

Designing= 445,200/10,600= $42 per designer hour

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Stitching and trimming= 1,491,000/84,000= $17.75 per labor hour

Wrapping and packing= 346,500/33,000= $10.5 finished unit

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