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Given the following balanced chemical equation, answer the following questions: 3 CaCl2 (aq) + 2 Na3PO4 (aq) → Ca3(PO4)2 (s) + 6 NaCl (aq)
Assume only 483 grams of calcium phosphate is actually formed in the prior experiment (Problem 1d), what is the percent yield in the experiment?
Explain how come 6.35 x 10 to the negative 2nd L turn in to 6.35ml instead of cl when the appraise prefixes are entered
how many milliliters of 0.100 mol of koh solution are needed to completely neutralize the hcl in 300 ml of a
What mass of AgBr would precipitate from this mixture? (Ksp of AgBr is 5.4x10^-13 & Kf of Ag(CN)2^1- is 1.0x10^21)
A 20.0-L flask contains 0.400 mole of H2, 0.300 mole of He and 0.500 mole of Ne at 55.0C. Explain what is the partial pressure of the Ne
A solution contains Cr3+ ion and Mg2+ ion. The addition of 1.00 L of 1.55M NaF solution is required to cause the complete precipitation of these ions as CrF3(s) and MgF2(s). The total mass of the precipitate is 50.2g.
An unknown material begins to emit electrons from it's surface when exposed to photons with wavelengths shorter than 540 nm. Give the threshold frequency and the work function for this material.
a calorimeter containing 200.0 ml of water was calibrated by carrying out a reaction which released 15.6 kj of heat. if
How many grams of glucose (C6H12O6) must be dissolved in 563 gram of ethanol (C2H5OH) to prepare a 2.40 x 10-2 m solution?
Cyclohexene treated with Cl2, xs HOCH3 in cold as well as dark conditions gives what major organic product
In trans-1,2-dibenzoylethylene, even though the conjugated C=O group frequency coincides directly with the expected C=C stretching fequency, we would not have expected to observe the late stretching mode in the infrared spectum. Why?
When two molecules of methanol react with oxygen, they combine with three O2 molecules to form two CO2 molecules and four H2O molecules. How many H2O molecules are formed when 5 methanol molecules react
In the following unbalanced reaction, what is the total decrease in oxidation number for the reduced element?
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