A 3.93 g sample of a laboratory solution contains 1.25 g of acid. what is the concentration of the solution as a mass percentage?

Stuck stupid science homework. anyone know answers?

how to make a model on a (connective, nerve, muscle, bone, epithelial) animal or plant tissue

What atomic or hybrid orbitals make up the bond between c2 and o in acetaldehyde, ch3cho?

Explain how the climate in a specific region differs during El Niño and La Niña I know this isn't chemistry but I couldn't find Science!

If you have 112 g of Ni and 112 g of AgNO3, how many atoms of silver would be produced?

Chemical Reactions Lab Procedures: 1. Place a 1cm long piece of white chalk in a clear plastic cup. 2. Add 5 mL of vinegar to the cup. 3. Record your observations. If you were performing the procedures above you would need to A.

How many moles of oxygen are in 0.53 moles of co 22?

The car wit fastest acceleration is the tempest. it has an acceleration of 6.1 m/s. suppose the car accelerates from rest to a final speed of 30. m/s. how long does it take the tempest to reach this speed?

What is the wavelength of 2.18*1016 hz wave?

Which of the following summarizes photosynthesis? A. glucose + carbon dioxide → oxygen + water B. carbon dioxide + water → glucose + oxygen + water C. oxygen + water → glucose + carbon dioxide + water D.