The volume of the Cl₂ gas is 4.15 L.
Explanation:
This problem can be easily solved using the ideal gas law.
As in ideal gas law, it is stated that the product of pressure and volume is equal to the product of number of moles with temperature with gas constant.
PV=nRT
So, in the present case, pressure P is given as 177 kPa, temperature T = 348 K and the mass of chlorine gas is given as 18 g.
So first step, we have to determine the value of 'n' using the mass of Chlorine gas given. The mass should be converted to moles by dividing the mass with molar mass of the gas.
![n = \frac{Mass}{Molar mass}](https://tex.z-dn.net/?f=n%20%3D%20%5Cfrac%7BMass%7D%7BMolar%20mass%7D)
As molar mass of Cl is 35.453 g/mol, then ![Molar mass of Cl_{2} = 2 * 35.453 = 70.906 g/mol](https://tex.z-dn.net/?f=Molar%20mass%20of%20Cl_%7B2%7D%20%3D%202%20%2A%2035.453%20%3D%2070.906%20g%2Fmol)
So, ![n = \frac{18 g}{70.906 g/mol} =0.254 moles](https://tex.z-dn.net/?f=n%20%3D%20%5Cfrac%7B18%20g%7D%7B70.906%20g%2Fmol%7D%20%3D0.254%20moles)
Then, the volume can be determined with R = 8.3144×10³ L Pa K⁻¹ mol⁻¹ as shown below:
![V = \frac{nRT}{P} =\frac{0.254*8.3144*10^{3} *348}{177*10^{3} } =4.15 L](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7BnRT%7D%7BP%7D%20%3D%5Cfrac%7B0.254%2A8.3144%2A10%5E%7B3%7D%20%2A348%7D%7B177%2A10%5E%7B3%7D%20%7D%20%3D4.15%20L)
Thus, the volume of the Cl₂ gas is 4.15 L.
Answer:
0.39760273
Explanation:
I typed into calculator hope it's right.
Answer:
MgCl2 = 24 + 2(35.5)
= 95
mass of substance = mol × molar mass
= 0.119 × 95
= 11.305 g
Answer:
I think it's Trinitrogen Pentaseleniumide
Explanation:
Tri - three
Penta - five
Second element ends with -ide
It's unable to identify a decrease in LOS linked to corticosteroid exposure during hospitalization for ocular cellulitis in this database search. After two days of hospitalization, operational episodes and the prescription of corticosteroids were related to admission to the PICU.
Within two days of admission, 1347 (24%) of the 5462 children who were included in the research received a corticosteroid prescription. In analyses that controlled for age, the existence of meningitis, abscess, or visual problems, as well as the surgical episode and PICU admission within 2 days, corticosteroid prescription was not linked with LOS (e = 1.01, 95% confidence interval [CI]: 0.97-1.06). Among patients with a primary diagnosis of orbital cellulitis, corticosteroid exposure was linked to surgical events after two days of hospitalization (odds ratio = 2.05, 95% CI: 1.29-3.27) and 30-day readmission (odds ratio = 2.40, 95% CI: 1.52-3.78). Prospective, randomized control trials are required prior to the widespread usage of corticosteroids.
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