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IRINA_888 [86]
4 years ago
15

The armpit region is called the blank region? a.Acromial b.Popliteal c.Axillary d.Carpal

Chemistry
2 answers:
Ede4ka [16]4 years ago
6 0
C. axillary is related to the armpit
anyanavicka [17]4 years ago
6 0
It is axillary because it is another word for armpit and it is related to the armpit
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How many molecules are in 25g of Na2SO4? POINTS!! Please help! Im so frustrated.
erik [133]
Hey there!

Molar mass Na2SO4 = <span>142.04 g/mol

Number of moles:

n = m / mm

n = 25 / 142.04

n = 0.176 moles of Na2SO4

Therefore, </span>use the Avogadro constant


1 mole Na2SO4 ------------------- 6.02x10²³ molecules
0.176 moles Na2SO4 ------------   molecules ??


0.176  x  ( 6.02x10²³ ) / 1 

=> 1.059x10²³ molecules of Na2SO4

hope this helps!
6 0
4 years ago
A 0.211 g sample of carbon dioxide, CO2, has a volume of 560 mL and a pressure of 429 mmHg whats the temperature of the gas in K
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The temperature of the gas sample is 813 K.

<u>Explanation:</u>

We have to use the ideal gas equation to find the temperature of the gas sample.

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Moles, n = $\frac{given mass}{molar mass} = \frac{0.211 g}{44.01 g/mol}

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Now, we have to plugin the above values in the above equation, we will get the temperature as,

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T = $\frac{0.56  \times 0.56}{0.08205 \times 0.0047}

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