Answer : The number of moles of water produced are, 4.4 moles.
Explanation : Given,
Moles of oxygen gas = 2.2 moles
The given chemical reaction is:
By the stoichiometry we can say that, 2 moles of hydrogen gas react with 1 mole of oxygen gas to give 2 moles of water as a product.
From the balanced chemical reaction we conclude that,
As, 1 mole of oxygen gas react to give 2 moles of water.
So, 2.2 mole of oxygen gas react to give moles of water.
Thus, the number of moles of water produced are, 4.4 moles.
Hey there!:
Molar mass H2O = 18.02 g/mol
Δ<span>H vap = 40.7 kj/mol
</span>
energy = ( mass ) / ( molar mas H2O ) * ΔH vap
energy = ( 27.9 / 18.02 ) * 40.7
energy = 1.54827 * 40.7
energy = 63.09 Kj
Answer C
hope this helps!
Do you mean; " A blank is a substance that is made by combining two elements?" (I'm not sure if substances is the right term)
If so then the blank is a compound.
<span>23.8 g/mol
Since the definition of molar mass is mass per mole, just divide the mass of the sample by the number of moles you have. So
0.250 g / 1.05x10^-2 mol = 23.8095 g/mol
Since our input data only has 3 significant figures, you need to round the result to 3 significant figures.
23.8095 g/mol rounds to 23.8 g/mol</span>
Answer:
neap tide
Explanation:
There are two different types of tides, which are the spring tide and the neap tide.
Neap tides are weak tides which occur when the gravitational forces of the sun and the moon are at right angles to each other with respect to the earth. Since the sun and moon are at right angles, it causes a difference between the low and high tide.
The spring tide are strong tides which occur when the moon, sun and earth are in straight line. The spring tide occur during full moon and new moon.