It is not important to accurately measure the amount of HCl placed in the eudiometer tube since HCl will be added in excess to react with all the moles of Mg.
In gas stoichiometry, through the method of displacement of a liquid (generally water), the gaseous byproduct is collected inside a long, thin graded glass tube called a eudiometer.
If we consider a reaction between Magnesium and Hydrochloric acid to give a product known as magnesium chloride and hydrogen gas, we can have the chemical equation represented as:
From the above reaction, for each mole of Magnesium taking place in the reaction, 1 mole of hydrogen gas is also produced.
Thus, we can have a prediction that HCl can always be added in excess in order for us to react to all the moles of solid magnesium, hence, it is not important to measure the moles of HCl since it will be added in excess.
Learn more about gas stoichiometry here:
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Answer:
.137 moles
Explanation:
need to know the molar mass of water which is 18.01528 g/mol
2.46 g of H₂O divided 18.01528 g/mol molar mass H₂O = moles of H₂O
2.46 divided by 18.01528 =
.137 moles
C4H10 is butane
butane is commonly used in cigarette lighters
2C4H10+1302 -> 8CO2 + 10H₂O is the burning of butane
burning butane with oxygen makes carbon dioxide and water
vsumhcwagovau
Answer:
± 1 or ± 2
Explanation:
Electrovalent bonds are chemical bonds that are established on the premise of transferring electrons between two atoms.
In this bond type, a higly electronegative atom, typically a non-metal receives electrons from an atom with lesser electronegativity, a metal.
To know the number of electrons involved in forming electrovalent bonds, we typically look at the groups of atoms that combines to form the bond.
Metals are found in group I and II on the periodic table. Metals are electropositive and are good electron donors. These metals have 1 and 2 electrons in their valence shell respectively. In like manners, the more electronegative atoms are found in group VI and VII. The elements in these groups are non-metals with high electronegativity and requires just 1 and 2 electrons to complete their octet.
It is d it says it in the question the answer is d.
The measurement of distance from one point to another is length.
