Chemistry, 27.03.2020 19:51 npatony

Interpret the equations in terms of particles moles and mass
a. 2PbS +3O2 = 2PbO +2SO2
b. 4HCl +O2 = 2H2O + 2Cl2

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Answer from: Aliciaonfleek

The equations in terms of particles moles and mass

a. 2PbS +3O2 = 2PbO +2SO2

b. 4HCl +O2 = 2H2O + 2Cl2

a) 2 Molecules of Pbs + 3 molecules of O2 = 2 Molecules of PbO + 2 molecules of SO2

2 Moles of PbS + 3 Moles of O2 = 2 moles of PbO + 2 Moles of SO2

478.6 grams of PbS+ 48 grams of 02 = 446.4 grams + 128 grams SO2

b). 4 molecules of HCl + 1 molecule of oxygen = 2 molecules of water +2 molecules pf Cl2

4 mole of HCl + 1 mole of oxygen = 2 mole of water + 2 moles of Cl2

146.4 grams of HCl + 31.8 grams = 36 grams of H20 + 159.8 grams of Cl2.

Explanation:

Calculation of:

particles =?

moles =?

mass =?

Equation given:

a) 2PbS +3O2 = 2PbO +2SO2

2 Molecules of Pbs + 3 molecules of O2 = 2 Molecules of PbO + 2 molecules of SO2

2 Moles of PbS + 3 Moles of O2 = 2 moles of PbO + 2 Moles of SO2

Mass of the reactant and product is calculated as:

number of moles x atomic mass

so,

atomic mass of PbS =239.3 grams/mole

mass = 2 x 239.3

= 478.6 grams

atomic mass of O2 = 16 grams/mole

mass = 3 x 16

= 48 grams

atomic mass of PbO = 223.2 grams/mole

mass = 2 x 223.2

= 446.4 grams

atomic mass of SO2 = 64 grams/mole

mass = 2 x 64

= 128 grams

b) Calculation of:

particles =?

moles =?

mass =?

Equation given:

4HCl +O2 = 2H2O + 2Cl2

4 molecules of HCl + 1 molecule of oxygen = 2 molecules of water +2 molecules pf Cl2

4 mole of HCl + 1 mole of oxygen = 2 mole of water + 2 moles of Cl2

To calculate mass, formula used is

mass = number of moles x atomic mass

atomic mass of HCl =36.46 gram/mole

mass = 4 x 36.46 = 146.4 grams

atomic mass of oxygen

mass = 2x 15.9 = 31.8 grams

atomic mass of water = 18 grams,mole

mass = 2 x 18 = 36 grams

atomic mass of Cl2 = 79.90 grams/mole

mass = 2 x 79.90 = 159.8 grams

Answer from: Quest

For cyclohexane compounds drawn in a chair conformation: -axial bonds are vertical -equatorial bonds are parallel to two bonds within the ring. thus, as i assume the chair conformation is drawn: -the x group is in an axial position, as are the five other vertical bonds. -three axial bonds are on the top face of the ring -the other three axial bonds are on the bottom face the position of the second substituent on each ring carbon is equatorial. gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other. drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1. click this link and watch some academic videos that may you more understand the topic

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A) the enthralling of formation for pure element in its standard state is always positivehope this : )

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Interpret the equations in terms of particles moles and mass
a. 2PbS +3O2 = 2PbO +2SO2
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