Calculate the hardness of the water in ppm
5.00 ml of a water sample was titrated for hardness with 4.15mL of 0.0200M EDTA. Write an equation for the reaction and calculate the hardness of the water in ppm
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Could your drink serve different purposes for different consumers? Explain.What is the normal physiological response to increased intake of sugars? to increased intake of caffeine?
When H2(g) reacts with C2H4(g) to form C2H6(g), 137 kJ of energy are evolved for each mole of H2(g) that reacts.
When a solution of Cu(II) chloride, CuCl2 , is added to a solution of potassium sulfide, K2S, a black precipitate of copper sulfide, CuS, forms. Write a balanced chemical equation, ionic equation, net ionic equation & spectator ions.
The volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
Assume that we have a 100 g sample of this compound. The molecular formula mass of this compound is 210 amu. What are the subscripts in the actual molecular formula?
What is the pH when 0.005 moles of HCl is added to 0.100L of a buffer solution that is 0.100M in CH3CO2H and 0.100M NaCH3CO2?
If 450 ml of some Pb(NO3)2 solution is mixed with 200 ml of 4.40 x 10-2 M NaCl solution, what is the maximum concentration of the Pb(NO3)2 solution added if no solid PbCl2 forms?
Imagine that you have a 5.00 L gas tank and a 2.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
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