How many grams of potassium nitrate (KNO3) are required to prepare 0.250L of a 0.700 M

solution (KNO3 = 101.102 g/mol)

O 12.5 g

O 31.2g

25.38

17.78

How many moles are in 6.8 x 1023 molecules of NaOH?

Is the normal resting position of an object.

Is lead a mixture or pure substance? and is Paint a mixture or pure substance?

Consider these atoms. which atom (ba or i) would accept electrons from the other atom to satisfy the octet rule?

Charlie is balancing an equation. She has identified the atoms and counted the number of each in the reactants and products. What would Charlie adjust to make the number of atoms in the reactants the same as the number of atoms in the products?

Erosion occurs when natural forces alter a landscape. What does it mean to alter a landscape?

What is the molecular mass of glucose

Click the "draw structure" button to launch the drawing utility. Draw the product formed when 2-heptanone (CH3COCH2CH2CH2CH2CH3) is treated with (CH3) 2CHNH2 in the presence of mild acid. 2-Heptanone is partly responsible for the odor of bleu cheese.

How does the goverment control scientific reseach

What happens when an oceanic plate collides with a continental plate? Select one: a. Neither plate moves under the other. b. The continental plate moves under the oceanic plate. c. The oceanic plate moves under the continental plate