How much salt is required to make 250g of a 5.0% saline solution?

How can electrons in an atom move from one energy level to another?

What particles move most rapidly?

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

Part a consider the formation of nitryl fluoride: 2no2 (g) + f2 (g) ⇌2no2f (g) the reaction is first order in f2 and second order overall. what is the rate law?

Calculate the number of moles in 41.5 g of MgCl2

Which statement describes how the binary ionic compound CaCl2 is named? The nonmetal is named first, and the ending is replaced with - ide. The metal is named first, and the ending is replaced with - ide.

Calculate the empirical for the molecular formula mass and the molar mass of each of the following minerals: (a) Limestone, CaCO3 (b) halite, NaCl (c) beryl, Be3Al2Si6O18 (d) malachite, Cu2 (OH) 2CO3 (e) turquoise, CuAl6 (PO4) 4 (OH) 8 (H2O) 4

How is a suspension different from a colloid?

What is the atomic number of 232Th

A particular voltaic cell operates with the reaction: Zn (s) + Cl2 (g) - -->Zn^2 + (aq) + 2Cl^ - (aq) giving a cell potential of. 853 V. Calculate the amount of energy liberated from the cell when 20.0g of zinc metal is consumed?