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alexandr402 [8]
3 years ago
7

What is the volume occupied by 0.106 mol of helium gas at a pressure of 0.99 atm and a temperature of 309 K ?

Chemistry
1 answer:
iris [78.8K]3 years ago
6 0
0.99 x volume= 0.106 x 0.082 x 309
volume= 2.71 ml
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Na + CI2 =2NaC is It balanced
scoray [572]

Answer:

no, the correct answer is NaCI

Explanation:

you're welcome

3 0
3 years ago
Help me please !! How to solve it ??
snow_tiger [21]
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6 0
3 years ago
2. A quantity of 1.922g of methanol (CH3OH) was burned in a constant-volume
Cerrena [4.2K]
Mass of methanol (CH3OH) = 1.922 g
Change in Temperature (t) = 4.20°C
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The heat absorbed by the bomb and water is equal to the product of the heat capacity and the temperature change.
Let’s assume that no heat is lost to the surroundings. First, let’s calculate the heat changes in the calorimeter. This is calculated using the formula shown below:
qcal = Ccalt
Where, qcal = heat of reaction
Ccal = heat capacity of calorimeter
t = change in temperature of the sample
Now, let’s calculate qcal:
qcal = (10.4 kJ/°C)(4.20°C)
= 43.68 kJ
Always qsys = qcal + qrxn = 0,
qrxn = -43.68 kJ
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2 years ago
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Barium (Ba) has two valence electrons, and these electrons are located in the 6s subshell. Without using the periodic table, in
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