The number of grams of hydrogen that must react according to equation is 10.66 grams
2 H2 + O2 = 2H2O
calculation
find the number of moles of H2O reacted
that is moles = mass/molar mass
molar mass for water = 16 +(1 x2) = 18 g/mol
moles is therefore = 96 g/18 g/mol = 5.33 moles
by use of mole ratio between H2 to H20 which is 2:2 or 1:1 the moles of H2 is also = 5.33 moles
mass of H2 is = moles x molar mass of H2 = 1 x2 = 2g/mol
= 5.33 moles x 2 g/mol = 10.66 grams
Answer:
B. the acid that accepts an electron pair from a base
Explanation:
hope it helps .
The water droplets come from condensation, or the waiter vapor that was in the air, and they cling to the cup
Answer:
The answer is B: main-group elements.
Explanation:
Answer:
Ca₃N₂
Explanation:
The empirical formula is the simplest whole-number ratio between moles of each element present in a molecule.
Thus, we need to convert mass of each atom to moles and find the ratio between these as follows:
<em>Moles N:</em>
1.46g * (1mol / 14.0067g) = 0.104moles
<em>Moles Ca:</em>
6.27g * (1mol / 40.078g) = 0.156moles
The ratio between Moles N and moles of Ca is:
0.156moles / 0.104 moles = 1.5
That means there are 1.5 moles of Ca per mole of N. As empirical formula must be given in whole numbers:
There are 3 moles of Ca per 2 moles of N.
Empirical formula is:
<h3>Ca₃N₂</h3>