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Ann [662]
3 years ago
12

What is the pH of water? A. 7 O B. 1 x 107 O C. -7 D. 1 x 107

Chemistry
1 answer:
Mice21 [21]3 years ago
8 0

Answer:

A:7

Explanation:

Hopefully this helps

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How many grams of AlCl3 can be prepared from 3.5 moles of HCl gas?
poizon [28]

Answer:

156 g of AlCl₃ will be produced from 3.5 moles of HCl.

Explanation:

Given data:

Number of moles of HCl = 3.5 mol

Grams of AlCl₃ produced = ?

Solution:

Balanced Chemical equation:

3HCl + Al(OH)₃   →  AlCl₃ + 3H₂O

Now we will compare the moles of AlCl₃  with HCl from balanced chemical equation.

                   HCl          :           AlCl₃

                     3            :              1

                   3.5           :           1/3×3.5 = 1.17 mol

Mass of  AlCl₃ produced:

Mass = number of moles ×molar mass

Mass = 1.17 mol ×   133.341 g/mol

Mass =  156 g

Thus 156 g of AlCl₃ will be produced from 3.5 moles of HCl.

4 0
3 years ago
A molar solution is a solution that contains one mole of solute in​
BartSMP [9]

Answer:

1 liter of the solution

Explanation:

  • Molarity or concentration of a solution refers to the number of moles of solute contained in a volume of 1 liter or 1 dm³ solution.
  • Therefore, the concentration of a solution is calculated by dividing the number of moles of a solute by the volume of the solution.
  • Concentration is given in mol/L or mol/dm³.
  • Hence, a molar solution is a solution that contains 1 mole of a solute in 1 liter of the solution. This is equivalent to 1M or 1 mol/L.
7 0
3 years ago
Can anyone sort these four into the correct banks?
Naddika [18.5K]

Answer:

yes

Explanation:

7 0
3 years ago
Why are graphs used to understand an objects motion?
S_A_V [24]
Hello!

Graphs are used to understand an object's motion because they can show the exact location of the object at any given moment. 

This is done with the help of a reference system. The most common reference system is the Cartesian coordinate system, which describes the location of an object through a set of 2 or 3 coordinates (depending if the system is in 2D or 3D).

Studying graphs of movement, we can know if the movement is cyclical, or the direction of the movement, determine tendencies and overall getting an unambiguous and precise understanding of the motion.

Have a good day! 


5 0
4 years ago
Which battle led to the mass displacement of Cherokee from their homes?
zzz [600]

Answer:

option d.......................

3 0
3 years ago
Read 2 more answers
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