Chemistry Acid and Base

40 cm³ of 1.0 mol dm^-3 hydrochloric acid is neutralized by 25cm³ of barium hydroxide solution. What is the molarity of barium hydroxide?

40 cm³asid hidroklorik 1.0 mol dm^-3 dineutralkan oleh 25cm³ larutan barium hidroksida.

Berapakah kemolaran larutan barium hidroksida?

• 0.625 mol dm^-3

• 0.800 mol dm^-3

• 1.600 mol dm^-3

• 3.500 mol dm^-3

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Which of the following word pairs correctly completes the sentence below?

_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.

• Acids; pH less than 7

• Acids; pH greater than 7

• Bases; pH greater than 7

• Bases; pH less than 7

The _______ scale measures the strength of acids and bases.

Select the name for the following acid: H₃PO₄

• Phosphoric acid

• Phosphorous acid

• Hydrophosphoric acid

Which of these is a property of acidic solutions?

• they taste sour

• they feel slippery

• they are in many cleaning products

• they taste bitter

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

• Acid

• Base

• Neither (Neutral)

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic

• slightly acidic

• strongly basic

• slightly basic

Which is NOT a property of acids?

• slippery

• pH below 7

• react with metals

• contain H¹⁺ ions

Which is NOT a property of bases?

• caustic

• slippery

• pH below 7

• bitter

A salt is formed when nitric acid combines with sodium hydroxide. What are present in the salt that forms?

• Sodium chloride

• sodium ions and nitrate ions

• only sodium ions

• only nitrate ions

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5