How many moles is 1.50 x 1023 molecules of NH3
Answers
? mole ------ 1.50 x 10²³ molecules
moles = 1.50 x 10²³ * 1 / 6.02 x 10²³
moles = 1.50 x 10²³ / 6.02 x 10²³
= 0.249 moles
hope this helps!
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0.01325 = 1.325x10^-2 or 13.25 x 10^-3 or 132.5 x 10^ - 4 or 1325 x 10^-5. Scientific notation is the standardized way to represent any number as the product of a real number and a power of ten.
Final answer:
The number 0.01325 is expressed in scientific notation as 1.325 x 10^-2. The number of significant figures remains the same.
Explanation:
The starting value 0.01325 can be converted to scientificnotation by first moving the decimal place. In this case, the decimal moved to the right by 2 places, making the number 1.325. So the number in scientific notation becomes 1.325 x 10^-2. Notice that there are still the same 4 significant figures (1, 3, 2, 5) in the number 1.325 as in the original number 0.01325.
Learn more about Scientific Notation here:
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Answers
Answer:
0.09 M/s is the initial rate when concentration of reactant A is 0.900 M.
Explanation:
A → B
1) Initial concentration of A = [A] =0.300 M
Rate constant of the reaction , k = ?
Rate equation for the second order kinetic is given as:
2) Rate of the reaction when initial concentration of A was 0.900M be R'.
[A] = 0.900M