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MatroZZZ [7]
3 years ago
7

Nolan and Hunter are studying heat flow, so they design the following apparatus. The apparatus consists of two identical glass c

ylinders connected by a glass tube. During their experiment, Nolan and Hunter simultaneously pour hot water in the tank on the left and cold water in the tank on the right. Then, they seal the tops of the cylinders and allow the water in the tanks to intermingle through the glass tube. To determine if heat is transferred, Nolan wants to place his hands in each tank of water at the beginning and end of the experiment. Hunter wants to use a thermometer to measure the temperature in each tank at the beginning and end of the experiment. How do Nolan and Hunter's proposed methods compare?
Chemistry
2 answers:
maks197457 [2]3 years ago
8 0

Nolan's method would allow him to make a descriptive observation. Hunter's method would allow him to include numbers in his data.


irinina [24]3 years ago
5 0

Nolan's method would allow him to make a descriptive observation. Hunter's method would allow him to include numbers in his data. just had this question ;)

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katrin [286]
  

m = 7.84x107/(3x108)2kg  = 7.84x107/9x1016kg = 0.871x10-9 kg = 8.71x10-10 kg





3 0
3 years ago
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Molar mass of 34.00 g/mol molecular formula
alukav5142 [94]
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8 0
3 years ago
A student used 1.168g of an unknown weak acid and titrated it against 28.75 mL of 0.105M NaOH to reach the equivalence point. Wh
Vaselesa [24]

Answer:

The molar mass of the unknown acid is 386.8 g/mol

Explanation:

Step 1: Data given

Mass of the weak acid = 1.168 grams

volume of NaOH = 28.75 mL = 0.02875 L

Molarity of NaOH = 0.105 M

Since we only know 1 equivalence point, we suppose the acid is monoprotic

Step 2: Calculate moles NaOH

Moles NaOH = molarity NaOH * volume NaOH

Moles NaOH = 0.105 M * 0.02875 L

Moles NaOH = 0.00302 moles

We need 0.00302 moles of weak acid to neutralize the NaOH

Step 3: Calculate molar mass of weak acid

Molar mass = mass / moles

Molar mass = 1.168 grams / 0.00302 moles

Molar mass = 386.8 g/mol

The molar mass of the unknown acid is 386.8 g/mol

3 0
3 years ago
Who wants to make some Chemistry????... UwU
Alik [6]

Answer:

what kind of chemistry is it going to be?

8 0
3 years ago
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Predict and Balance the following reaction:
Umnica [9.8K]

A. The balanced chemical reaction of Sodium metal and Water is 2Na  +  2H₂O  →  2NaOH    +   H₂.

<h3>What is a balanced chemical equation? </h3>

A balanced equation contains the same number of each type of atoms on both the left and right sides of the reaction arrow.

<h3>Reaction of Sodium metal and Water</h3>

Sodium metal reacts rapidly with water to form a colourless solution of sodium hydroxide (NaOH) and hydrogen gas (H2).

The balanced chemical reaction is written below;

2Na  +  2H₂O  →  2NaOH    +   H₂

Thus, the balanced chemical reaction of Sodium metal and Water is 2Na  +  2H₂O  →  2NaOH    +   H₂.

Learn more about chemical reaction here: brainly.com/question/11231920

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8 0
1 year ago
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