Answer:
The concentration of the HNO3 solution is 0.150 M
Explanation:
<u>Step 1:</u> Data given
Volume of the unknown HNO3 sample = 0.120 L
Volume of the 0.200 M Ba(OH)2 = 45.1 mL
<u>Step 2:</u> The balanced equation
2HNO3 + Ba(OH)2 ⟶ Ba(NO3)2 + 2H2O
<u>Step 3:</u> Calculate moles Ba(OH)2
moles Ba(OH)2 = molarity * volume
moles Ba(OH)2 = 0.200 M * 0.0451 L
moles Ba(OH)2 = 0.00902 moles
<u>Step 4:</u> Calculate moles of HNO3
For 1 mole of Ba(OH)2 we need 2 moles of HNO3
For 0.00902 moles of Ba(OH)2 we need 2*0.00902 = 0.01804 moles
<u>Step 5</u>: Calculate molarity of HNO3
molarity = moles / volume
molarity = 0.01804 / 0.120 L
Molarity = 0.150 M HNO3
The concentration of the HNO3 solution is 0.150 M
Answer:
What type of bonds are shown in this diagram?
A: covalent bonds
B: ionic bonds
C: hydrogen bonds
D: metallic bonds
(answer) metallic bonds
In what type of bonds do atoms join together because their opposite charges attract each other?
A: metallic bonds and covalent bonds
B: metallic bonds and ionic bonds
C: ionic bonds and covalent bonds
D: ionic bonds and hydrogen bonds
(answer) ionic bonds and hydrogen bonds
What types of bonds are shown in this diagram?
A: covalent bonds
B: ionic bonds
C: hydrogen bonds
D: metallic bonds
(answer) hydrogen bonds
Which statement best describes the types of bonds shown in the diagram?
A: an ionic bond; the hydrogen chloride molecule has an electrical charge
B: an ionic bond; a hydrogen ion is bonding with a chlorine atom
C: a covalent bond; the hydrogen atom’s two electrons are being shared with the chlorine atom
D: a covalent bond; the hydrogen atom’s single electron is being shared with the chlorine atom
(answer) a covalent bond; the hydrogen atom’s single electron is being shared with the chlorine atom
Which of the following bonds is the strongest?
A: hydrogen bonds
B: metallic bonds
C: valence bonds
D: covalent bonds
(answer)
Explanation:
UwU
