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Lisa [10]
3 years ago
9

How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 53.6 moles of water vapor?

Chemistry
1 answer:
adelina 88 [10]3 years ago
6 0
53.6 moles of Hydrogen gas are needed.
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A chemist makes of nickel(II) chloride working solution by adding distilled water to of a stock solution of nickel(II) chloride
Lady_Fox [76]

Answer:

0.0900 mol/L

Explanation:

<em>A chemist makes 330. mL of nickel(II) chloride working solution by adding distilled water to 220. mL of a 0.135 mol/L stock solution of nickel(II) chloride in water. Calculate the concentration of the chemist's working solution. Round your answer to significant digits.</em>

Step 1: Given data

  • Initial concentration (C₁): 0.135 mol/L
  • Initial volume (V₁): 220. mL
  • Final concentration (C₂): ?
  • Final volume (V₂): 330. mL

Step 2: Calculate the concentration of the final solution

We prepare a dilute solution from a concentrated one. We can calculate the concentration of the working solution using the dilution rule.

C₁ × V₁ = C₂ × V₂

C₂ = C₁ × V₁/V₂

C₂ = 0.135 mol/L × 220. mL/330. mL = 0.0900 mol/L

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2 years ago
Explain how you would change a solution with an original pH of 8.0 to have a pH of<br> 12.0?
pshichka [43]

Answer: Acidity and basicity, proton concentration, the pH scale. You may have noticed that acidic things tend to taste sour, or that some basic. Since the scale is based on pH values, it is logarithmic, meaning that a change of 1 pH unit .

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If you wanted to make .5 L of a 1 mole/L (M) of MgSO4 solution, how many grams of MgSO4 would you use?
tino4ka555 [31]

Answer:

0.5 grams

Explanation:

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3 years ago
Plz PLZ plz PLz Plz Plz Help Plz dont answer if you dont know thank you :)
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Answer: There is no question.

Explanation:

Due to no question I can simply not answer this. Pls mark me brianliest for answering correct.

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2 years ago
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Explain why heating a liquid causes it to evaporate more quickly.
Elina [12.6K]

Answer:

If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. The most energetic particles at the surface escape from the surface of the liquid as a vapour as it gets warmer. Liquids evaporate faster as they heat up and more particles have enough energy to break away.

Explanation:

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