There are 4 atoms in sodium hydrate
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We will need to know Avogadro's number and the molar mass of sucrose for this problem to do dimensional analysis.
- Avogadro's number: 6.022 × 10²³ molecules
- Molar mass of sucrose: 342.2965 g/mol
250g × × = 4.398 molecules
There are <em>4.398 sucrose molecules </em>in 250 grams of sucrose.
Your question looks a bit incomplete as you have the same contents in options a) and d). According to your list, I can't see the correct answer, but I can give you one.The difference between the potential energy of the products of the potential energy of the reactants is equal to the enthalpy of the reaction.
Carbon dioxide is a primary effluent gas because it is being generated in large amounts by:
1) The burning of methane which produces water vapor and carbon dioxide
2) The decomposition of limestone, CaCO₃ to CO₂ and CaO
Sulfur is contained within the clay and the high temperature and combustion conditions cause it to form Sulfur dioxide which exits the kiln.
Molar mass CO₂ = 12 + 16 x 2 = 44.0 g/mol
1 mole ------------ 44.0 g
9 moles --------- ? ( mass CO₂)
mass CO₂ = 9 x 44.0 / 1
mass CO₂ = 396 / 1
= 396 g of CO₂
hope this helps!