Answer:
There are produced 6.72 g
Explanation:
This is the reaction:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
1 mol of glucose reacts with 6 moles of oxygen, to make 6 moles of dioxide and 6 moles of water
Molar mass of CO₂ = 46 g/m
Moles CO₂ = 10.3 g/ 46g/m = 0.224 moles
Ratio is 6:1
6 moles of CO₂ are made from 1 mol of glucose
0.224 moles of CO₂ are made from (0.224 . 1)/6 = 0.0373 moles of glucose
Molar mass glucose = 180.15 g/m
Mass glucose = moles . molar mass
0.0373 m . 180.15 g/m = 6.72 g
Answer:
Too much iodine can be harmful if you don't need it. You don't need to take iodine (supplements) if you already have a varied and balanced diet.
Explanation:
Iodine is already contained in table salt so you don't need to add any more.
Answer:
Molarity =5.32 M
Explanation:
Given data:
Mass of glucose = 239 g
Volume = 250 mL (250 /1000 = 0.25 L)
Molarity = ?
Solution;
Formula:
Molarity = number of moles / volume in litter
Number of moles:
Number of moles = mass/ molar mass
Number of moles = 239 g / 180.2 g/mol
Number of moles = 1.33 mol
Molarity:
Molarity = number of moles / volume in litter
Molarity = 1.33 mol / 0.25 L
Molarity =5.32 M
Answer:
AlBr3
Explanation:
Aluminum has three electrons on its valence shell. The Lewis model deals with combination of electrons on the valence shells of atoms to form compounds. Bromine has seven electrons on the valence shell of each bromine atom.
Three bromine atoms could combine with one aluminium atom to form aluminium bromide in which each bromine atom now has eight electrons in their valence shells according to the octet rule. Aluminium however will only have six electrons on its valence shell.
G -1,3,5,6. Water boils a 100 degrees Centigrade and freezes at 0 degrees Centigrade .
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