A total of 20.0 mL of sodium hydroxide (NaOH) was neutralized by 30.0 mL of 0.250 M hydrogen bromide (HBr). What was the concentration of the sodium hydroxide? I also need to know the Solution, Molar Ratio, Volume, and Concentration

0.375 M

Explanation:

NaOH(aq) + HBr(aq) > NaBr(aq) + H2O(l)

Concetration of acid CA= 0.250M

Concentration of base CB=

Volume of acid VA= 30.0mL

Volume of base VB= 20.0mL

Number of moles of acid nA= 1

Number of moles of base nB= 1

CA VA/CB VB= nA/nB

CB= CAVAnB/VB nA

= 0.25× 30×1/20×1= 0.375 M

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary