What is the pH of a solution if the [H⁺] = 4.2 x 10⁻¹¹ M

Could you give me information about atom?

The density of ice is 917 kg/m3. The density of salt water is 1029 kg/m3. A mass of ice is 2.55 x 1013 kg. Calculate the volume of salt water that has the same mass as 278 km3 of ice.

What conversion factor is used to convert between grams and moles?

What mass of li3po4 is needed to prepare 500 ml of a solution having a lithium ion concentration of 0.175 m?

Calculate the pH of a buffer solution obtained by dissolving 13.0 g of KH 2 PO 4 (s) and 32.0 g of Na 2 HPO 4 (s) in water and then diluting to 1.00 L

6. State the number of significant digits in each of the following measurements. (a) 1.00 cm

How do you boil water less than 100

What quantum numbers specify these subshells 5s 6p 4d?

What is the molarity of sucrose if 150.0 g is dissolved in 250.0 mL of solution

What are sister chromatids