Help asap! 1. For a laboratory experiment, the instructions say add 4 grams of calcium chloride (CaCl2) to a 500mL volumetric Flask and dilute to the line with DI water. What is the molarity of this solution.

2. Determine the amount of milliliters needed in a .5M soilution of CuCl2 to provide 35g of pure CuCl2.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced

What is the molar mass of potassium nitrate, kno3