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denis23 [38]
3 years ago
12

What is the molar mass of a substance?

Chemistry
2 answers:
DaniilM [7]3 years ago
8 0
The mass in grams of one mole of a substance
marissa [1.9K]3 years ago
8 0

Answer:

D.) the mass in grams of one mole of a substance

Explanation:

Edge 2020

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A) What mass in grams of H20 is needed to react completely with 40.0 g of
Step2247 [10]

Answer:

m_{H_2O}=9.24gH_2O

Explanation:

Hello there!

In this case, since there is a 2:2 mole ratio between sodium peroxide and water according to the given reaction, it is possible to apply the following stoichiometric setup for the calculation of the required mass of water:

m_{H_2O}=40.0gNa_O_2*\frac{1molNa_O_2}{78gNa_O_2}*\frac{2molH_2O}{2molNa_O_2}  *\frac{18.02gH_2O}{1molH_2O} \\\\m_{H_2O}=9.24gH_2O

Best regards!

7 0
3 years ago
What is true of a solution with a pH of 12
mars1129 [50]
It is alkaline ........I need 20 characters......
6 0
3 years ago
What is the number of moles of solute in 250 mL of a .80M solution
Illusion [34]

Answer:

There are 0.1 moles of solute in 250 mL of 0.4 M solution

Explanation:

because it is

8 0
3 years ago
A _____________reaction mechanism involves loss of a leaving group, formation of a ________ followed by the removal of a proton
Molodets [167]

Answer:

The correct answer is Option C (E1) and Option B (carbocation).

Explanation:

  • Intramolecular immunity idols are considered as that of the formation mechanism with E1 responses or reactivity.
  • Reactants with E1 were indeed obligations of both parties, meaning that an E1 reaction was conducted thru all the two stages known as ionization but rather deprotonation. Involves the absence of either an aromatic ring, a carbocation has been generated throughout the ionization solution.

Some other possibilities offered aren't relevant to the procedure outlined. So the above alternative is accurate.

7 0
3 years ago
True or false. The center of gravity and center of mass of an object need to be in the same spot?
stellarik [79]

Answer:

True................

4 0
3 years ago
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