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likoan [24]
3 years ago
11

What is the mass in grams for 9.0 mol lead oxide

Chemistry
2 answers:
Alona [7]3 years ago
3 0
I think maybe 2.5
Hope this helps 
S_A_V [24]3 years ago
3 0
Molar mass of PbO = <span>223.1994 g/mol
</span>
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If I leave 750 mL of a 0.40 M sodium chloride solution uncovered on a windowsill
mel-nik [20]

Answer:

B. 0.5 molar

Explanation:

Given data:

Initial concentration = 0.40 M

Initial volume = 750 mL

Final volume =750  -  150 mL = 600 mL

Final concentration = ?

Solution:

Molarity is the number of moles of solutes in litter of solvent. In given problem it is stated that when the solution is uncovered solvent evaporate it means molarity is changed. we can calculate the new molarity with the following formula.

C₁V₁ = C₂V₂

C₁ = initial concentration

V₁ = initial volume

C₂ = final concentration

V₂ = final volume

Now we will put the values in formula.

C₁V₁ = C₂V₂

0.40 M × 750 mL = C₂ × 600 mL

300 M.mL / 600 mL = C₂

0.5 M = C₂

5 0
3 years ago
BRAINLIEST IF RIGHT
vampirchik [111]
A or c probably I think a tho
6 0
3 years ago
Determine the pH of 023M HNO3 solution.
lisabon 2012 [21]

Answer:

pH = 1.683

Explanation:

plz mark as brainliest if it helps

6 0
4 years ago
When would it be most appropriate to use ppm to describe the concentration of the solutes in a solution?
cluponka [151]

B) When describing very dilute solutions.

Explanation:

The most appropriate time to use ppm is when describing dilute concentrations of solutes in solutions. It is used mostly to determine trace amount of elements in water and soils.

  • The part per million ppm is the amount of miligram of a solute in a liter of solution.
  • It is similar to percentage.
  • Minute and trace concentrations are very difficult to work with.
  • Using parts per million, they become better appreciated and easy to use.

Learn more:

Parts per million brainly.com/question/2854033

#learnwithBrainly

5 0
4 years ago
What type of hybridization (according to valence bond theory) does fe exhibit in the complex ion, [fe(h2o)4(br)2]+? what type of
Jlenok [28]
We have 6 pairs of electrons here and the shape is Octahedral so the correct type of hybridization is:   d²sp³
Check the provided picture

7 0
3 years ago
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