Answer: 109.5g
Explanation:
Mg + 2HCl —> MgCl2 + H2
From the equation,
1mole of Mg required 2moles of HCl
Therefore 1.5moles of Mg will require = 1.5 x 2 = 3 moles of HCl.
Molar Mass of HCl = 1+35.5 =36.5g/mol
Mass conc. Of HCl = 3 x 36.5 = 109.5g
Answer: i beleive it is fixation in edge 2020
Explanation:
P = 11.133 atm (purple)
T = -236.733 °C(yellow)
n = 0.174 mol(red)
<h3>Further explanation </h3>
Some of the laws regarding gas, can apply to ideal gas (volume expansion does not occur when the gas is heated),:
- Boyle's law at constant T, P = 1 / V
- Charles's law, at constant P, V = T
- Avogadro's law, at constant P and T, V = n
So that the three laws can be combined into a single gas equation, the ideal gas equation
In general, the gas equation can be written
![\large {\boxed {\bold {PV = nRT}}}](https://tex.z-dn.net/?f=%5Clarge%20%7B%5Cboxed%20%7B%5Cbold%20%7BPV%20%3D%20nRT%7D%7D%7D)
where
P = pressure, atm
V = volume, liter
n = number of moles
R = gas constant = 0.08206 L.atm / mol K
T = temperature, Kelvin
To choose the formula used, we refer to the data provided
Because the data provided are temperature, pressure, volume and moles, than we use the formula PV = nRT
T= 10 +273.15 = 373.15 K
V=5.5 L
n=2 mol
![\tt P=\dfrac{nRT}{V}\\\\P=\dfrac{2\times 0.08205\times 373.15}{5.5}\\\\P=11.133~atm](https://tex.z-dn.net/?f=%5Ctt%20P%3D%5Cdfrac%7BnRT%7D%7BV%7D%5C%5C%5C%5CP%3D%5Cdfrac%7B2%5Ctimes%200.08205%5Ctimes%20373.15%7D%7B5.5%7D%5C%5C%5C%5CP%3D11.133~atm)
V=8.3 L
P=1.8 atm
n=5 mol
![\tt T=\dfrac{PV}{nR}\\\\T=\dfrac{1.8\times 8.3}{5\times 0.08205}\\\\T=36.42~K=-236.733^oC](https://tex.z-dn.net/?f=%5Ctt%20T%3D%5Cdfrac%7BPV%7D%7BnR%7D%5C%5C%5C%5CT%3D%5Cdfrac%7B1.8%5Ctimes%208.3%7D%7B5%5Ctimes%200.08205%7D%5C%5C%5C%5CT%3D36.42~K%3D-236.733%5EoC)
T = 12 + 273.15 = 285.15 K
V=3.4 L
P=1.2 atm
![\tt n=\dfrac{PV}{RT}\\\\n=\dfrac{1.2\times 3.4}{0.08205\times 285.15}\\\\n=0.174~mol](https://tex.z-dn.net/?f=%5Ctt%20n%3D%5Cdfrac%7BPV%7D%7BRT%7D%5C%5C%5C%5Cn%3D%5Cdfrac%7B1.2%5Ctimes%203.4%7D%7B0.08205%5Ctimes%20285.15%7D%5C%5C%5C%5Cn%3D0.174~mol)
Answer:According to Boyle's Law, the volume of a gas is inversely proportional to the pressure of a gas. Therefore, increasing the volume has the same effect as decreasing the pressure. If the volume in which a gas reaction takes place is DECREASED, the reaction will shift toward the side with fewer moles of GAS.
Explanation:
<span>The answer to the question is the option C. it cannot be physically broken down into different types of atoms. This means that the material is an element, which is a pure substance. Because an element is a pure substance that is formed by one only type of atoms. For example, gold is an element and all its atoms are of the same type. That is also true for any of the 118 elements of the periodic table. Compounds (other kind of pure substances) can be broken down into molecules (which contain different kind of atoms, but always in the same proportion) and mixtures (non pure substances) have different kind of substances.</span>