Answer : The mass of reactant remain would be, 0.20 grams.
Solution : Given,
Moles of = 0.40 mol
Moles of = 0.15 mol
Molar mass of = 2 g/mole
First we have to calculate the limiting and excess reagent.
The balanced chemical reaction is,
From the balanced reaction we conclude that
As, 1 mole of react with 2 mole of
So, 0.15 moles of react with moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and is a limiting reagent and it limits the formation of product.
The moles of reactant remain = 0.40 - 0.30 = 0.10 mole
Now we have to calculate the mass of reactant remain.
Therefore, the mass of reactant remain would be, 0.20 grams.
Answer: The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Iron(III) Oxide, or 159.6882 grams.
Answer:
A. K = 59.5
Explanation:
Hello there!
In this case, since this reaction seems to start moving leftwards due to the fact that neither A nor Y are present at equilibrium, we should rewrite the equation:
3C (g) + D (g) <-- --> 2A (g) + Y (g)
Thus, the equilibrium expression is:
Next, according to an ICE table for this reaction, we find that:
Whereas x is calculated by knowing that the [C] at equilibrium is 0.456M; thus:
Next, we compute the rest of the concentrations:
Thus, the equilibrium constant for the leftwards reaction is:
Nonetheless, we need the equilibrium reaction for the rightwards reaction; thus, we take the inverse to get:
Therefore, the answer would be A. K = 59.5.
Regards!
Answer:
9.31 g = 0.00931 kg
Explanation:
We need to tell that 9.31 gram is same as what. There are many units that measure the meass of an object like milligram, kilogram, centigram etc.
The relation between kilogram and gram is as follows :
1 kg = 1000 g
or
1 g = 0.001 kg
If we change 9.31 gram to kg, we get :
9.31 g = (9.31 × 0.001) kg
or
Hence, 9.31 g is the same mass as 0.00931 kg.
Inter molecula force
1- hydrogen bond
2- ion bond
3- dipole dipole
4- dipole bond or van der wael
but not all dipole dipole has the same strength