Do a quick conversion: 1 grams Co2 = 0.0084841820909097 mole using the molecular weight calculator and the molar mass of Co2.
Answer: The concentration of
will be
after 416 seconds have passed.
Explanation:
Expression for rate law for first order kinetics is given by:

where,
k = rate constant = 
t = age of sample = ?
a = let initial amount of the reactant = 
a - x = amount left after decay process = 


The concentration of
will be
after 416 seconds have passed.
Answer:The molecular formula of the oxide of metal be
. The balanced equation for the reaction is given by:

Explanation:
Let the molecular formula of the oxide of metal be 

Mass of metal product = 1.68 g
Moles of metal X =
1 mol of metal oxide produces 2 moles of metal X.
Then 0.03005 moles of metal X will be produced by:
of metal oxide
Mass of 0.01502 mol of metal oxide = 2.40 g (given)

y = 2.999 ≈ 3
The molecular formula of the oxide of metal be
. The balanced equation for the reaction is given by:

They speed up reactions by lowering activation energy. Many enzymes change shape when substrates bind.