A student dissolves 0.0688 mol of sodium hydroxide in water to make a 0.250 L solution. What is the molarity of the solution?

a. 0.17 M

b. 0.28 M

c. 2.5 M

Write the condensed electron configuration of each transition metal ion, and predict whether it is paramagnetic: (a) V³⁺ (Z = 23) (b) Ni²⁺ (Z = 28) (c) La³⁺ (Z = 57)

Where can you find atoms

A scientist is studying how certain factors affect the rate of a particular reaction. She observes that under one set of conditions, the reaction proceeded much faster than under a different set of conditions.

Consider the reaction below that has a Keq of 8.98 X 10-2. The initial concentration of A and B is 1.68 M. Calculate the equilibrium concentration of C. A + B ↔ 2C

Which statement best supports the law of definite proportions? Nitrogen can react with oxygen to form different compounds. The mass of reactants is always equal to the mass of products in a chemical reaction. Pure water is always 11.2% H and 88.

Molecules are the smallest units of matter with the characteristic properties of a substance. a. True b. False

For the following hypothetical reaction: 3A + 2B - > 3C. How many moles of C can you produce with 5 moles of A and excess B?

Which of the following statements is true of enzymes? A. they change shape after a reaction B. They don't provide an active site for substrates to bind in a reaction C. They're unusable after a reaction D.

How many moles of NaCl are present in 530 ml of a 1.52m NaCl solution

How much can 97 go in to 15