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Gnom [1K]
3 years ago
6

A room is 16 ft x 12 ft x 12 ft. would air enter or leave the room if the temperature changed from 27°c to –3°c while the pressu

re remained constant? determine the volume of the air which moved in or out of the room.
Chemistry
1 answer:
Alexxx [7]3 years ago
4 0
61-c  is your answer
hope this helps
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A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
san4es73 [151]

Answer:

83.20 g of Na3PO4

Explanation:

1 mole of Na3PO4 contains 3 moles of Na+.

Mole of Na ion to be prepared = Molarity x volume

                 = 0.700 x 725/1000

                     = 0.5075 mole

If 1 mole of Na3PO4 contains 3 moles of Na ion, then 0.5075 Na ion will be contained in:

           0.5075/3 x 1 = 0.1692 mole of Na3PO4

mole of Na3PO4 = mass/molar mass = 0.1692

Hence, mass of Na3PO4 = 0.1692 x molar mass

                                     = 0.1692 x 163.94

                                        = 83.20 g.

83.20 g of Na3PO4 will be needed.

3 0
3 years ago
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vitfil [10]

Answer:

-OH

Explanation:

Alcohols generally have the structural formula OH

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7 0
2 years ago
Which is a characteristics of all ions
Sholpan [36]

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All ions must a overall charge

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3 years ago
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