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Write the balanced equation for the reaction. Identify what type of reaction it is. And explain the scientific principle (statement) that requires the balancing of an equation and explain what it means for a reaction to be balanced.
Question- A crystal was analyzed using X-ray diffraction with radiation from a cobalt source (lambda pm Cobalt = 179). The observed angle was 10.22 degrees. Determine distance between layers of the crystal.
The Ka of a monoprotic weak acid is 5.81 × 10-3. What is the percent ionization of a 0.147 M solution of this acid?
In the reaction P4 + 5 O2 → 2 P2O5, how many moles of O2 are consumed each time 0.5 moles of P2O5 form?
Compute the stoichiometric air/fuel ratio for burning compressed natural gas (CNG) if we presume that CNG is CH4.
What is the quantity of Fe2O3 that will be produced if 5.00g of FeS2 is reacted with 11.0g of oxygen according to the following reaction
Our simple pH meter that we have used before works on the principles deiscussed on page 829. What cell voltage would you expect from the pH probe if it is place into a beaker containing 50 mL of 1M HCl diluted with 50 mL of distilled water
State whether you expect the following molecules to be polar or non-polar and arrange the molecules in increasing order of dipole moment.
Problem- Explain why it is important for the beaker of water to cool slowly and for you to stir the napthalene liquid as it cools
A mixture is 10 mole % ethyl alcohol, 75 mole % ethyl acetate and 15 mole % acetic acid. calculate the mass fractions of each compound. what is the average molecular weight of the mixture
Which is a persistent organic pollutant
Problem- You are titrating 150.0 mL of 0.070 M Ca2 with 0.070 M EDTA at pH 9.00. Log Kf for the Ca2 -EDTA complex is 10.65, and the fraction of free EDTA in the Y4- form, ay4-, is 0.041 at pH 9.00.
Question- Propose a structure for the solid that separates when concentrated sulfuric acid is added to the solution of p-aminobenzoic acid in ethanol.
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