General Chemistry Answers

An aqueous solution of Borax (Na2B4O7) is sometimes used to fireproof wood. 

What is the molarity of 45.0 L of solution that contains 6.78 kg of Na2B4O7?

An aqueous solution of Borax (Na2B4O7) is sometimes used to fireproof wood. 

What is the molarity of 2.50 L of solution that contains 1.85 mol of Na2B4O7?  

A 9.168 M aqueous solution of H₂SO₄ has a density of 1.4987 g/ml at 20^∘

 C. How many grams of H₂SO₄ are in 50.0 g of this solution? 

You add 6.9 g of iron to 23.40 mL of water and observe that the volume of iron and water together is 24.28 mL.

Calculate the density of iron.

A tube of mercury at a room temperature of 22.4 C has a volume of 10.6 mL between the sealed end of the tube and the mercury. The sun rises and shines through a window on the tube and warms it to 27.8 C. If the atmospheric pressure remains constant, what is the new volume between the sealed end of the tube and the mercury?

calculate the liters of a .20 M solution that can be made using 126.0 grams HNO3

What is the concentration of hydroxide ions in 750 mL of a solution containing the maximum amount of dissolved calcium hydroxide?

what is the ph of a 0.210 m solution of acetic acid? ka= 1.75x10 -5

Use the balanced equation to answer the following question. One Pansit has a mass of 5.0 grams and one Siling Labuyo has a mass of 1.0 gram. How many Hot Pansit can be made from 40.0 grams of Pansit and 26.0 grams of Siling Labuyo? (Show your solution)

Determine the equilibrium constant (kc) for the synthesis of PCl5 from PCl3 and Cl2 (PCl3 +Cl2 ⇌ PCl5).