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uysha [10]
3 years ago
8

Which of these rules is applicable to subtracting two values that have different numbers of decimal places

Chemistry
1 answer:
Pani-rosa [81]3 years ago
4 0

Answer:

The only reule here that is applicable to substracting two values that have different numbers of decimal places is that The answer has the same number of decimal places as the least precise value

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Many scientists believe that the current period of global warming is related to increased levels of
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3 years ago
Read 2 more answers
PLEASE HELP!!!!!!
pogonyaev

Answer:

m_{B}^{theoretical}=0.365gB

Y=87.1\%

Explanation:

Hello there!

In this case, since the reaction (A->B) have an initial amount of pure 4-aminobenzoic acid, the first step to compute the theoretical yield is to solve the following stoichiometric setup:

m_{B}^{theoretical}=0.303gA*\frac{1molA}{137.14gA}*\frac{1molB}{1molA}*\frac{165.19 gB}{1molB}\\\\   m_{B}^{theoretical}=0.365gB

Whereas A stands for 4-aminobenzoic acid and B for the benzocaine. Moreover, we compute the percent yield by dividing the actual yield (0.318 g) by the theoretical one (0.365 g):

Y=\frac{0.318g}{0.365g} *100\%\\\\Y=87.1\%

Best regards!

4 0
3 years ago
Which has the greater polarizing power, Li+ or Be2+ and why?
kvasek [131]

Answer:

Polarizing power refers to an atoms ability to pull an electron toward it, polarizing the atom the electron comes from. Since cations are positive, they are able to attract electrons toward themselves. Anions are negative and so do not attract more electrons.

Therefore, Be2+ has a higher polarizing power because it has a higher quantitiy of protons, hence a higher polarizing power.

4 0
3 years ago
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