Answer:
Explanation:
First consider the mol to mol ratio, the mol of a substance is simply the count of atoms in respect to avagadros number (approx. 6.02 × 10²³ molecules) in the period table. 1 mol of an element is simply it's mass count in the periodic table.
The mineral that you described is called Muscovite. The pages of the book description fits muscovite found in granite pegmatites where it is found in large crystals with a
pseudohexagonal outline that are called "books".
Answer:
The equation that tends to answer this question, (omitting the presence of water) is:
Fe (ClO4) 3 -----------> Fe (+3) + ClO4 (-1)
Explanation:
The numbers that we see in parentheses would be the oxidation numbers of each compound, in the case of iron, iron acts with an oxidation number of +3, and in the case of perchlorate it would be -1.
The stoichiometric name according to IUPAC (most widely used chemical nomenclature) is iron perchlorate.
Full Question:
Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium sulfate Na2SO4 and liquid water H2O. Suppose 94g of sulfuric acid is mixed with 49.9g of sodium hydroxide. Calculate the minimum mass of sulfuric acid that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
Answer:
32.8725g
Explanation:
First thing's first, we write out the balanced chemical equation;
2NaOH + H2SO4 --> Na2SO4 + 2H2O
The question hints that sulphuric acid would be in exess by asking to calculate the minium mass that would be left over.
We proceed by calculatng the amount of sulphuric acid that would react with 49.9g of sodium hydroxide.
From the reaction,
2 moles of NaOH reacts with 1 mole of H2SO4.
Calculate moles of sodium hydroxide:
Molar mass of NaOH= 40.0 g/mol
Mass of NaOH = 53 g
moles = Maass / Molar mass = 1.2475
This means 1.2475 would react with x number of moles;
2 = 1
1.2475 = x
x = 1.2475 / 2 = 0.62375
Mass of Sulphuric acid reacted = moles * molar mass = 0.62375 * 98 = 61.1275g
Mimium mass of left over = 94 - 61.1275g = 32.8725g
Answer:
5. A strong base increases the OH- ion concentration in an aqueous solution.
6. It has more hydrogen ions.
Explanation:
5. Arrhenius theory states that acids donate H+ ions to a solution and bases donate OH- ions to a solution.
6. pH < 7 so the solution is acidic. Acidic solutions have more hydrogen or hydronium ions. Hydrogen and hydronium ions are essentially interchangeable.
