Answer:
Carbon dioxide
Explanation:
not sure if this answers your question
1) molar mass of the C6H8O<span>6, you need to consult the atomic weight of the C, H and O atoms that are in the periodic table: C is 12; H is 1; O is 16
(12x6)+(1x8)+(16x6)= 176g/mol
</span><span>176 g = 1 mol
0,5 g = x mol 500mg= 0,5 grams
molar mass = mass÷ moles
176 = 0,5÷ x
x= 2,84 x 10⁻³ mol
2) To find the number of molecules present in those </span>2,84 x 10⁻³ mol we need to multiple the moles by the <span>Avogadro's constant
No. of molecules = Avogadro's constant x n° of moles
</span>No. of molecules = 6.022 x 10²³ x 2,84 x 10⁻³ <span>
= 1.71 x 10²¹ molecules of vit C. </span>
Answer:
What is a formation reaction? it is when a mol of a product it is formed from its elements constituents
What is standard heat of formation? the standard heat of formation or formation enthalpy, it is the amount of energy necessary for produce a mol of the product when its elements constituent react.
What is a combustion reaction? It is when a hydrocarbon reacts with oxygen and produce water a carbon dioxide
What is standard heat of combustion? It is the amount of energy released during a combustion reaction, measuring per mass or volume unit
Explanation:
A example of formation reaction is:
2H2 + O2 =2H2O
I hope my answer can help you
