Answer:
when the substance is decrease
Explanation:
Answer:
Molecular formula = C₄H₆As₆Cu₄O₁₆
Explanation:
Given data:
Empirical formula = C₂H₃As₃Cu₂O₈
Molar mass of compound = 1013 g/mol
Molecular formula = ?
Solution:
Molecular formula = n (empirical formula)
n = molar mass of compound / empirical formula mass
Empirical formula mass of C₂H₃As₃Cu₂O₈ is 506.897 g/mol
by putting values.
n = 1013 / 506.897
n = 2
Molecular formula = n (empirical formula)
Molecular formula = 2 (C₂H₃As₃Cu₂O₈)
Molecular formula = C₄H₆As₆Cu₄O₁₆
Answer:
The correct option is (b) "pressure".
Explanation:
Gay-Lussac's law states that the pressure of an ideal gas is directly proportional to its temperature at constant mass and volume.
Mathematically, Gay-Lussac's law is as follows :
or
Hence, the correct option is (b) "pressure".
Answer:
Fluorine has seven electrons in 2p-subshell whereas chlorine has seven electrons in its 3p-subshell. 3p-subshell is relatively larger than 2p-subshell. Therefore, repulsion among the electrons will be more in the 2p-shell of fluorine than 3p-subshell in chlorine. Due to the smaller size and thus, the greater electron-electron repulsions, fluorine will not accept an incoming electron with the same as chlorine.
Answer:
3. 107 atm
Explanation:
First, we will calculate the moles of each gas by dividing its mass by its molar mass.
nCHCl₃ = 10.2 g/(119.38 g/mol) = 0.0854 mol
nCH₄ = 0.322 g/(16.04 g/mol) = 0.0201 mol
The total number of moles is 0.0854 mol + 0.0201 mol = 0.1055 mol.
The absolute temperature is 345°C + 273.15 = 618 K
We can find the pressure of the gaseous mixture using the ideal gas equation.
P × V = n × R × T
P = n × R × T / V
P = 0.1055 mol × 0.08206 atm.L/mol.K × 618 K / 0.0500 L
P = 107 atm
