Answer:
D. H₂SO₄
Explanation:
Bronsted acids are those that donate H+ ions. In this question, H₂SO₄ is a Bronsted acid.
Note: H₂SO₄ is one of seven strong acids that you should try to memorize.
Answer:
XCl2 + 2 AgNO3 = X(NO3)2 + 2 AgCl
Explanation:
i ran this through a calculator
Answer:
90g of H2O
Explanation:
2H2 + O2 —> 2H2O
First, we calculate the molar masses of H2 And H20.
Molar Mass of H2 = 2g/mol
Mass conc of H2 from the balanced equation = 2 x 2 = 4g
Molar Mass of H2O = 2 + 16 = 18g/mol
Mass conc of H2O from the balanced equation = 2x18 = 36g
From the equation,
4g of H2 produced 36g of H2O
Therefore, 10g of H2 will be produce = (10x36)/4 = 90g of H2O
Using the method chromatography
Answer:
Choice A: approximately .
Explanation:
Note that the unit of concentration, , typically refers to moles per liter (that is: .)
On the other hand, the volume of the two solutions in this question are apparently given in , which is the same as (that is: .) Convert the unit of volume to liters:
- .
- .
Calculate the number of moles of formula units in that of the solution:
.
Note that (sulfuric acid) is a diprotic acid. When one mole of completely dissolves in water, two moles of ions will be released.
On the other hand, (sodium hydroxide) is a monoprotic base. When one mole of formula units completely dissolve in water, only one mole of ions will be released.
ions and ions neutralize each other at a one-to-one ratio. Therefore, when one mole of the diprotic acid dissolves in water completely, it will take two moles of to neutralize that two moles of produced. On the other hand, two moles formula units of the monoprotic base will be required to produce that two moles of . Therefore, and formula units would neutralize each other at a two-to-one ratio.
.
.
Previous calculations show that of was produced. Calculate the number of moles of formula units required to neutralize that
.
Calculate the concentration of a solution that contains exactly of formula units:
.