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UNO [17]
3 years ago
9

A 1.0mol sample of which of the following compounds has the greatest mass?

Chemistry
1 answer:
maxonik [38]3 years ago
5 0

Answer:

N2O5

Explanation:

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Need major help. Help me please
jek_recluse [69]
Uhhh, that looks like a game. I don't know how to tell u the answers for that thing -_-
6 0
3 years ago
You have a 1.8 M solution of HCI. You need to make a 0.70 M solution with a volume of 550 mL. How many mL of the stock solution
Arte-miy333 [17]

The volume of the stock solution needed is 213.88 mL to get new concentration.

<h3>What is molarity?</h3>

Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution.

Determination of the volume of stock solution.

Volume of diluted solution (V₂) =550 mL

Molarity of diluted solution (M₂) =0.70 M

Molarity of stock solution (M₁) = 1.8 M

Volume of stock solution needed (V₁) =?

M₁V₁ = M₂V₂

1.8 M  × V₁ = 0.70 M × 550 mL

V₁ = 213.88 mL

Thus, the volume of the stock solution needed is 213.88 mL.

Learn more about the molarity here:

brainly.com/question/2817451

#SPJ1

5 0
2 years ago
in the two stage cooling method what is the maximum amount of time allowed for both stages cooling food from 135 to 41 degrees F
BlackZzzverrR [31]
In the past, restaurants had four hours, straight through, to cool food to 41°F or lower. Now the FDA recommends cooling food in two stages -- from 135°F to 70°F in two hours then from 70°F to 41°F or lower in an additional four hours for a total cooling time of six hours
Explanation:
the two-stage cooling method<span> is a </span><span>Food Code </span>counselled<span> procedure for cooling food in restaurants and foodservice </span>institutions<span>. </span>within the<span> two-stage cooling </span>methodology<span>, food is</span><span> cooled from 140° F (60° C) to 70° F (21° C) </span>among 2<span> hours and to 41° F (5° C) or lower </span>among<span> four hours. Use of this cooling </span>methodology<span> ensures that food is cooled quickly and safely and has no harmful effects.</span>
3 0
3 years ago
Read 2 more answers
true or false: 1. An object can have only one type of energy at a time 2. If an object has energy, it must be moving. 3. All ene
gregori [183]
True is the correct answer
4 0
3 years ago
How many of each component are shown in the diagram? Check all that apply. one battery two switches two batteries two resistors
VikaD [51]
<h3>In reference to the diagram attached </h3><h3>Answer:</h3>

one battery, two switches, and three light bulbs

Explanation:

  • A circuit is an arrangement that shows the flow of electrons from a current source such as a battery.
  • The diagram shows a circuit that contains one battery, two switches, and three light bulbs.
  • The switches serves to close the circuit when necessary.
  • The battery supplies current to the circuit.
  • The light bulbs are used for lighting.

8 0
3 years ago
Read 2 more answers
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