Water is a liquid which was made from a gas but if you freeze it you would get a solid but if you leave it in a warm place you would get a liquid so that is the intensive property of a sample of water.<span />
Answer:
182.3 g
Explanation:
number of mols of HCl = 5 mols
molecular weight of HCl = 36.46 g/mol
m = mass of HCl = number of mols x molecular weight
m = 5 mols * 36.46 g/mol
m = 182.3 g
Answer:
60.08g/mol
Explanation:
Given parameters:
Formula of sand = SiO₂
Find the molar mass of the compound to the hundredths place;
Molar mass of Si = 28.085g/mol
Molar mass of O = 15.999
Molar mass = 28.085 + 2(15.999) = 60.08g/mol
Answer:
the ratio of the universe's helium to hydrogen by mass is 2:5 approximately.
Explanation:
To solve this question, we assign arbitrary values to these elements in tandem to the data given in the question.
nH, Number of Hydrogen atoms = X = 100
nHe, Number of Helium atoms = 0.1X = Y = 10
From the data given, by mass:
if the mass of Hydrogen atom = 1g = 100g
therefore, the mass of a Helium atom = 4g (1*4) = 40g
Mass ratio of Helium to Hydrogen = 40:100 = 4:10 = 2:5 approximately
