Please help I need this ASAP! Will give Brainliest!! 1. What mass of precipitate is formed when 358 mL of 1.58 M CuNO3 is mixed with 491 mL of 0.87 M Ba(OH)2?

2.A titration is performed on a 25.0 mL sample of calcium hydroxide. A volume of
46.0 mL of a 0.15 M solution of nitric acid is used to reach to the end point.
Calculate the concentration of the calcium hydroxide.

Titration reveals that 11.6 ml of 3.0m sulfuric acid are required to neutralize the sodium hydroxide in 25.00ml of naoh solution. what is the molarity of the naoh solution?

Which quote from the passage best illustrates della’s optimism? “…and at length she was able to look up with dim eyes and a smile and say: "my hair grows so fast, jim! ” “…her heart had simply craved and yearned over them without the least hope of possession.” “and now, they were hers, but the tresses that should have adorned the coveted adornments were gone.” “beautiful combs, pure tortoise shell, with jewelled rims--just the shade to wear in the beautiful vanished hair.”d, ardent, most likely means? gloomy calm passionate innocent

If the price of gasoline is $3.85 per us gallon, what is the cost per liter? (1 l =1.06 qt)