Answer:
12 moles
Explanation:
The reaction will form carbonic acid:
CO₂ + H₂O ⇒ H₂CO₃
For 528 g of CO₂, the number of moles (n) will be:
n = mass/molar mass
n = 528/44.01
n = 12 moles of CO₂
The stoichiometry is 1 mol of CO₂ reacts with 1 mol of H₂O, so 12 moles of CO₂ need 12 moles of H₂O.
collect more data to support their hypothesis
the mass of the substance
c.
the change in temperature
b.
the specific heat of the substance
d.
the density of the sample
To calculate the amount of heat absorbed as a substance melts, the information which we don't need is density.
The formula which we used to calculate the amount of involved heat in a chemical reaction is:
Q = mcΔT, where
Hence the information which we don't need is density.
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Answer:
All animals, all fungi, and some kinds of bacteria are heterotrophs and consumers
Explanation:
Answer:
1.3005 M
Explanation:
Given that:
Mass of NaCl = 76 g
Molar mass of NaCl = 58.44 g/mol
The formula for the calculation of moles is shown below:
Thus,
Given that volume = 1 L
Considering:
Molarity = 1.3005 M
Answer:
Explanation:
Moles of
Moles of
For the given chemical reaction, the equation follows:
By Stoichiometry:
1 mole of oxygen reacts with 1 mole of carbon disulphide
So, 1.2 moles of oxygen reacts with = of carbon disulphide
As, the required amount of carbon disulphide is more than the required amount. Hence, it is considered as the excess reagent. (1.3-1.2)= 0.1 mole will be left unused.
Oxygen is considered as a limiting reagent because it limits the formation of product.