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son4ous [18]
3 years ago
12

Need help with this question yo.. Thanks to anyone!

Chemistry
1 answer:
myrzilka [38]3 years ago
6 0
Oh okie oh gosh lol lol lol just got back from
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Select the correct answer. The gas in a sealed container has an absolute pressure of 9.25 atmospheres. If the air around the con
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Answer:

Explanation:

8.25 atm

7 0
4 years ago
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Calculate the enthalpy for the reaction D + F = G + H using
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The enthalpy for the reaction : ΔH = -132

<h3>Further explanation</h3>

Given

Reaction and the enthalpy

Required

the enthalpy

Solution

Hess Law

Reaction 1 reverse :

A + B = G + C  ΔH = -277

Reactions 2 and 3 remain the same (unchanged)

C + F = A         ΔH = 303

D = B + H         ΔH = -158

Add up all the reactions and remove the same compound from two different sides

D + F = G + H  ΔH = -132

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3 years ago
Convert 1.71 × 1024 atoms of carbon to moles of carbon.
beks73 [17]
You need to use Avogadro's constant to convert from atoms of carbon to moles of carbon.

1.71*10^24 atoms C * (1 mole/6.022*10^23 atoms) = 2.84 moles of carbon
7 0
4 years ago
An adult human lung has a volume of 2.9 liters. If its volume decreases to 1.2 liters and it contains 0.049 mole of air after it
Lera25 [3.4K]

Answer:

In full volume it contain 0.12 moles.

Explanation:

Given data:

Total volume= Vt = 2.9 L

Decreased volume= Vd = 1.2 L

Number of moles of air present in decreased volume= n = 0.049 mol

Number of moles of air in total volume= n = ?

Solution:

Formula:

Vt/ Vd = n (in total volume) /n ( decreased volume)

2.9 L / 1.2 L = X / 0.049 mol

2.42 = X / 0.049 mol

X = 2.42 × 0.049

X = 0.12 mol

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2. A block of wood has a mass of 360 grams and a density of 60 g/cm3. What is the volume
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Answer:

6cm

Explanation:

3 0
3 years ago
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