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pochemuha
2 years ago
12

A solution of carbon dioxide in water has a hydronium ion concentration of 2.0 x 10^−6M. What is the concentration of hydroxide

ion at 25 °C?
Chemistry
1 answer:
kompoz [17]2 years ago
3 0

Answer:

[OH⁻] = 5x10⁻⁹ M

Explanation:

Kw = 1x10⁻¹⁴

[H₃O⁺] . [OH⁻] = Kw

2x10⁻⁶ . [OH⁻] = 1x10⁻¹⁴

[OH⁻] = 1x10⁻¹⁴ / 2x10⁻⁶ → 5x10⁻⁹

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Which energy source can we can find waste everywhere and shouldn’t run out?
olya-2409 [2.1K]

Answer:

wind

Explanation:

hope this helps

7 0
2 years ago
Read 2 more answers
The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20g/ml. the density of mercury is 13.6g/ml. part a what
valina [46]

As the atmospheric pressure is, P = dgh

Here d is the density of the mercury,

g is gravitation = 9.8 m/s²

h is height of the column, P = 751 torr = (751 torr × 1 atm / 760 torr) (101325 Pa) (1 N/m² / 1 Pa) = 100125 N/m²

Where, 1 N = 1 Kg / ms²

Thus, P = 100125 Kg / m³. s²

Therefore, height of the mercury column, when the atmospheric pressure is 751 torr,

h = P / gd

= (100125 kg / m³. s²) / (9.8 m/s²) (13.6 × 10³ kg / m³) = 0.751 m

As, d₁h₁ = d₂h₂

Here, d₁ is the density of the non-volatile liquid = 1.20 g/ml

d₂ is the density of the mercury = 13.6 g/ml

h₂ = 0.751 m

Thus, putting the values we get,

h₁ = d₂h₂ /d₁ = 13.6 g/ml × 0.751 m / 1.20 g/ml

= 8.5 m


3 0
3 years ago
Which carbon atom(s) of pyruvate is(are) first converted to carbon dioxide by pyruvate dehydrogenase complex?
lilavasa [31]

The carbon atom(s) of pyruvate is(are) first converted to carbon dioxide by pyruvate dehydrogenase complex is the second number of carbon of pyruvate goes to oxidation and convert it to CO2 in Krebs cycle.

<h3>what is Krebs cycle ?</h3>

Krebs cycle is also known as citric acid cycle it is the conversion of sugar to the direct energy in the form of ATP which further goes to mitochondria as it is the power house of the human cell.

Pyruvate molecule release second number carbon from the chain and undergoes oxidation to form the CO2.

Therefore, second number carbon atom will converts to carbon dioxide.

Learn more about Krebs cycle , here:

brainly.com/question/14241294

#SPJ4

7 0
1 year ago
128g of sulphur are burned in excess oxygen. What mass of sulphur dioxide forms? S + O2 --&gt; SO2 *
Rasek [7]

Mass of Sulphur dioxide : 256 g

<h3>Further explanation</h3>

Given

Reaction

S + O2 --> SO2 *

Required

Mass of Sulphur dioxide

Solution

mol of Sulphur (Ar=32 g/mol) :

mol = mass : Ar

mol = 128 : 32

mol = 4

From the equation, mol ratio S : SO2 = 1 : 1, so mol SO2 = 4

Mass of SO2 :

mass = mol x MW SO2

mass = 4 x 64

mass = 256 g

5 0
2 years ago
Question 1
exis [7]

Answer: False

Explanation: adding heat to matter results in thermal energy.

4 0
3 years ago
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