The calculation of moles of chromium (III) nitrate produced is done as follows. First, you write the reaction equation: 3 Pb(NO3)2 + 2 Cr = 2 Cr(NO3)3 + 3 Pb. Then, by using the mole ratio from Pb(NO3)2 to Cr(NO3)3, which is 3 to 2, you can find the moles of Cr(NO3)3. Thus, for 0.85 moles of lead (IV) nitrate, it equates to 0.85 x 2 / 3 = 0.57 moles.
Answer:
Calcium phosphate has the formula Ca3(PO4)2, which has a molar mass of 310 grams per mole.
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For 2.3*10^-4 moles, we calculate 2.3*10^-4 * 310, resulting in 713*10^-4 grams, or 71.3 milligrams.
If the formula is accurate but the compound's name is incorrect, simply replace 310 with 278, yielding 639.4*10^-4 grams, equivalently 63.94 milligrams.
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The correct sequence would be B, A, E, D, C. I hope this information assists you!
A dipole consists of a pair of equal but opposite charges. Since similar charges repel each other while opposite charges attract, when dipoles are placed in an electric field, the positive end is drawn toward the negative end of the field and vice versa. This behavior leads to movement or a stable position depending on how the field is aligned. If we consider the interaction with other dipoles, this influence might be hindered.
