1. Magnesium reacts with oxygen to form magnesium oxide and has the following balanced chemical equation: 2 Mg + O2–> 2 MgO. How many mole(s) of MgO are produced when 5 mole O2reacts completely? a. 20 mole b. 4 mole c. 10 mole d. 5 mole e. 2.5 mole 2. Sodium reacts with oxygen to form […]
PROBLEM 1.calculate the concentration of a NaCl (in water) solution in several ways and are given the following information: 30 g NaCl, 300 mL solution, Molecular weight of NaCl = 58.44 g/mole. must show ALL work for parts a and b. (a) Calculate the mass/volume percent concentration (b) Calculate the molarity of the solution Problem […]
Problem A. Step 1. Determine the number of atoms for each element present in the following molecule: Na2CO3 Step 2. Using the periodic table of elements, determine the molar mass for this molecule step 3. Show your work please Problem B. Step 1. Determine the number of atoms for each element present in the following molecule: Mg(NO3)2 […]
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