1 year ago

How many hydrogen atoms are in 11C2H6

Chemistry

2 answers:

sveticcg [70]1 year ago

6 0

The answer is six atoms

tresset_1 [31]1 year ago

5 0

Answer:

Explanation:

You will see H6 and the H stands for helium and the 6 is how many of that atom is there

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The acid-dissociation constant, ka, for gallic acid is 4.57 ⋅ 10-3. what is the base-dissociation constant, kb, for the gallate

LiRa [457]

Hello!

To determine the Kb of gallic acid is actually very simple.

The dissociation reaction of Gallic Acid (HGal) is the following:

HGal+H₂O ⇄ H₃O⁺ + Gal⁻

The equation for converting from Ka to Kb is the following:

$Ka*Kb=Kw \\ \\ Kb= \frac{Kw}{Ka}= \frac{1*10^{-14} }{4,57*10^{-3} }=2,19 * 10^{-12}$

So, the Kb is 2,19*10⁻¹²

Have a nice day!

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A sample of ammonia gas at 75°c and 445 mm hg has a volume of 16.0 l. what volume will it occupy if the pressure rises to 1225 m

ioda

In this kind of exercises, you should use the "ideal gas" rules: PV = nRT
P should be in Pascal:
445mmHg = 59328Pa
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$\frac{P1 V1}{n T}$ = $\frac{P2 V2}{n T}$
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Calculate the amount (in grams) of kcl present in 75.0 ml of 2.10 m kcl

Lera25 [3.4K]

V = 75 mL = 0,075 L = 0,075 dm³
C = 2.1M
n = ?
---------------
C = n/V
n = C×V
n = 2.1×0,075
n = 0,1575 mol
--------
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74,5g --------- 1 mol
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:•)

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Which of the following statements is true?

Rom4ik [11]

I think that its D.

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