2021年5月19日 · Ask a question for free Get a free answer to a quick problem. Most questions answered within 4 hours.

2022年9月25日 · Steps: Find moles of CaBr 2 in 105 g using molar mass = 199.89 g/mol. Convert to moles of Br. Convert to grams of Br using 79.90 g / mol (atomic mass Br)

2021年10月23日 · Which is true about one formula unit of CaBr 2?. A) There is one 1 Ca atom and 1Br 2 molecule. B) There is one CaBr 2 molecule

2020年5月1日 · The atomic mass of CaBr2 is 199.89 g/ mole. Use dimensional analysis to determine the amount of grams:

2 NABr + CA(OH)2 = CABr2 + 2 NAOH How many grams of NaBr are needed to produce 187 grams of CaBr2?

Bri L. asked • 11/21/20 In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy

2020年6月6日 · Ask a question for free Get a free answer to a quick problem. Most questions answered within 4 hours.

2020年5月11日 · HBr is the limiting reactant since it produces the least amount of CaBr2. Therefore, 2 moles of CaBr2 are produced. Step 4: Calculate the mass (grams) of CaBr 2 by multiplying the number of moles by its molecular weight (molar mass). 199.89 g CaBr 2. 2 moles CaBr 2 x ----- = 399.78 g CaBr 2. 1 mole CaBr 2

2021年6月9日 · 2 NABr + Ca(OH)2 = CaBr2 + 2 NaOH. This equation is telling us that we'll get 1 mole of CaBr 2 for every 2 moles of NaBr, a molar ratio of 1/2. We'll only get half the moles that we put in of the NaBr. We have 14.72 moles of NaBr, and excess Ca(OH) 2. So the calcium hydroxide is not a limiting reagent: all of the 14.72 moles of sodium bromide ...

2021年6月9日 · 2NaBr + Ca(OH)2 = CaBr2 + 2NaOH. 2 Na on both sides. 2 Br on both sides. 1 Ca on both sides. 2 OH ions on both sides. So this is a balanced equation. Now we can use stoichiometry to follow the ratio to see what can be yielded: from the balanced equation 2 moles of the NaBr react with 1 mole Ca(OH)2: