Molar Mass of HCl: 36.46 g/mol ElementSymbolAtomsMass % Hydrogen H 1 2.8% Chlorine Cl 1 97.2% Step 2 Separate the larger styrofoam balls from the smaller ones. Paint four of the larger styrofoam balls in one color and five of them in another color. Allow them to dry. Step 3 Paint...
You will need some concentrated HCl, say 6 molar. The question becomes: How many mL of 6 M HCl is required to prepare 150 mL of 0.25 M HCl? Use the equation: mLa x Ma = mLb x Mb 150 x 0.25 = n x 6; n = (150 x 0.25)/6 = 6.3 mL. Carefully mix 6.3 mL of 6 M HCl ...
To convert to molar heat capacity you can make use of the molar heat capacity formula: Multiply the specific heat by the molar mass of methane. The molar mass of methane is 16.04 J/g-K. molarheatcapacity=(2.20Jg∗K)(16.04g1mol) Multiplying the above together you get: molarheat...
It's useful in chemistry because it can be used to make chemically different molecules with different mass equal. It measures mass (the amount of matter in something), not "weight" meaning the gravitational pull on mass. Thus, in chemistry, it's acceptable to interchange weight with mass. ...
Calculate how much glucose is needed to make 500 mL of a 5% glucose solution. Solutions: In chemistry, a solution is created by dissolving a substance *the solute) in another substance (the solvent). For example, when we mix table salt (NaCl) with water, we are effect...
Calculate the molar solubility of calcium phosphate in water. Calculate the solubility of calcium sulfate in 0.010 mole / L calcium nitrate at SATP. If 5.83 g of CaCl2 is added to water to make 400 mL of solution, what would be the concentration of the chloride...
Use bond energies to calculate the enthalpy change for the following reaction CH4(g) + 3Cl2(g) CHCl3(g) + 3HCl(g) What is enthalpy of vaporization? What is the enthalpy of formation of Al2O3(s)? Calculate the molar enthalpy change for the complete combustion of 2-methylpropane using ...
2) First prepare the cuprammonium complex precursor using copper sulfate and sodium hydroxide as raw materials, and then use the freeze-drying method to spray liquid ammonia under vacuum conditions for rapid freeze-drying to make the cuprammonium complex solution Through dehydration and deamination,...
These rate differences are such that the addition of a small excess of enzyme will avoid any problems due to incomplete digestion. As always, however, one must be aware of the experimental molar concentration of recognition sites and digest conditions relative to that of the unit definition. See...
Molar Mass of HCl: 36.46 g/mol ElementSymbolAtomsMass % Hydrogen H 1 2.8% Chlorine Cl 1 97.2%Determining Empirical Formula The typical procedure to determine the empirical formula of a mystery compound is to analyze it for its component elements. If you obtain the weight of each element in...