Answer:
V = 25.7 L
Explanation:
To find the volume of Argon (Ar), you need to use the Ideal Gas Law equation. This looks like:
PV = nRT
In this formula,
> P = pressure (atm)
> V = volume (L)
> n = number of moles
> R = constant (0.0821 L*atm/K*mol)
> T = temperature (K)
While there is a different constant that can be used if you want to keep the pressure in mmHg, there is a more common constant used when the pressure is in atm. So, to find the volume, you need to (1) convert mmHg to atm (by dividing by 760) and then (2) calculate the volume (using Ideal Gas Law).
<u>(Step 1)</u>
600 mm Hg 1 atm
------------------- x --------------------- = 0.789 atm
760 mm Hg
<u>(Step 2)</u>
PV = nRT
(0.789 atm) x V = (0.825 mole)(0.0821 L*atm/K*mol)(300 K)
(0.789 atm) x V = 20.32
V = 25.7 L
Answer: Empirical formula of this compound is 
Explanation:
Mass of Cr= 104.0 g
Mass of O = 48.0 g
Step 1 : convert given masses into moles.
Moles of Cr =
Moles of O =
Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.
For Cr = 
For O =
Converting into simple whole number ratios by multiplying by 2
The ratio of Cr : O= 2: 3
Hence the empirical formula is
The most likely empirical formula of this compound is
3700 microL is the answer
Hope it was correct :)
The average atomic mass of this new element X is 43.45
HOW TO CALCULATE AVERAGE ATOMIC MASS:
- The average atomic mass of an element can be calculated by the following steps:
- multiplying the atomic mass of each isotope with its relative abundance
- Then sum the results for each isotope
According to this question; a new element X is found and in the sample:
- 70% is X-43
- 25% is X-44
- 5% is X-47
The average atomic mass of element X is calculated thus:
X-43: 70/100 × 43 = 30.1
X-44: 25/100 × 44 = 11
X-47: 5/100 × 47 = 2.35
Next, we sum the results as follows:
= 30.1 + 11 + 2.35
= 43.45
- Therefore, the average atomic mass of this new element X is 43.45.
Learn more: brainly.com/question/13753702?referrer=searchResults
Answer:
You can use a sound velocity probe
