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Give the cell notation based on the following reaction: Fe(s) + Hg2 ++ (aqueous) = Fe++ (aqueous) + 2Hg (l) the solution concentrations are 0.01 M
a. Hg2++ (0.01M) | Hg(l) || Fe(s)| Fe++(0.01M)
b. Fe(s)| Fe++(0.01M)|| Hg2++ (0.01M) | Hg(l)
c. Hg(s)| Fe++(0.01M)|| Fe2++ (0.01M) | Hg(l)
d. Fe++(0.01M)|| Hg2++ (0.01M)
e. Fe Cl(s)| Fe++(0.01M)|| Hg2++ (0.01M) | Hg Cl (s)
The increase in volume is due to the H2 gas created. 50 g of tin (Sn) is 0.421 moles. That is also the number of moles of H2 that are created. Use tha ideal gas law to compute the added volume due to that gas.
What is the molarity of the HCl solution if 270 mL of the HCl solution reacts with magnesium to produce 7.40 L of H_{2} gas measured at STP.
What weight of glucose in grammes is required to make 675 ml of a 750 mM solution. Glucose Mr = 180.16
Assume a wind turbine with a hub 50 meters above the ground, a rotor diameter of 60 meters and a wind-conversion efficiency of 25 percent. The turbine operates in an area with an average wind-power density of 700 watts/sq meter at 50 meters altitude.
What you observed upon the addition of NH3(aq) to magnesium chloride solution / what species are present in the test tube?and what happened when we add NH4Cl? Explain this observation with respect to the equilibrium reactions that exist in the test..
Draw the Lewis Structure for the ClF2+ion and AlF4-. For each ion, what are its electron-pair and molecular geometries? What orbitals on Cl and F overlap to form bonds between these elements
Find the molar reaction enthalpy by diving by the number of moles H+ and OH- that reacted (assume that the solution which is actually 1M NaOH, has the same density and heat capacity as water)
Suppose that 0.570 mol of methane is reacted with 0.720 mol of fluorine forming CF4(g) and HF(g) as sole products.
What are the products from the combustion of 2-methyl-3-ethyloctane?
Calculate the volume of air at 26 degrees Celsius and 0.92 atmosphere that is needed to burn completely 11.47 grams of pentane.
What name (label) is given to the hybridized orbitals of SF6. Explain how this label applies to the orbitals of the free atoms.
Hardness in groundwater is due to the presence of metal ions, primarily Mg2 and Ca2 . Hardness is generally reported as ppm CaCO3 or mmol/L Ca2 . To measure water hardness, a sample of groundwater is titrated with EDTA,
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