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What is the stoichiometric ratio between the number of moles of copper (II) oxide produced in the reaction and malachite? The molar mass of malachite is 221.1 g/mol and the molar mass of copper (II) oxide is 79.55 g/mol. To calculate the mass of malachite, use the data you recorded using the balance.
Match the following physical and chemical properties with the compounds cyclohexane,C6H12 , or calcium nitrate, Ca(NO3)2. CHOICES: A: C6H12 or B: Ca(NO3)2
A cell has an aluminum electrode and a zinc electrode in aluminum nitrate solution and zinc nitrate solution, respectively. The cell potential is +0.92 V and zinc is the cathode. Which is the oxidation electrode and which is the reduction electrod..
If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point, what is the weight percent of oxalic acid in the mixture. Oxalic acid and NaOH react according to the equation H2C2O4 (aq) + 2 NaOH(a..
Question- Element x has 3 isotopic forms: x-28 (27.977 amu, 92.21% abundance) , x-29 (28.976 amu, 4.7% abundance), x-30 (29.974 amu, 3.09% abundance) calculate atomic weight of x
What region of the electromagentic spectrum does this belong to, the frequency of this energy and the energy in J/photon and kJ/mole?
Problem- for the sequence [(O+N2 arrow NO+N)(1) or (NO+H arrow N + OH)(2)] reaction number (2) is the rate determining step. Is the statement true or false?
Problem- If 200 mL of oxygen and 400 mL of nitrogen, measured at one atmosphere pressure, are forced into a 100 mL container at constant temperature of 25°C, the total pressure will be
Reaction rate laws are frequently used to investigate reaction mechanisms. Would your results to this experiment be consistent with either or both of the following mechanisms?
The rate constant for the first order reaction below is K=3.3*10 -2 min -1 at 57 Kelvin. what is the half life for this reaction at 57 Kelvin
2 NaClO3-> 2 NaCl + 3 O2 Determine the number of moles of O2 produced by the decomposition of 213 g of NaClO3.
a student mixed 75.0 ml of water containing .75 mol hcl with 75.0 ml of water containing .75 mol of naoh at 25c in a
Problem- What is the freezing point in oC of a solution prepared by dissolving 6.60g of MgCl2 in 110 g of water. The value of Kf for water is 1.86 (?C?kg)/mol, and the van't Hoff factor for MgCl2 is i = 2.7.
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