Answer:
Tree sap flows over the leaf and preserves it.
Explanation:
Amber would preserve the image.
Answer:
The more the temperature the less the effect if magnet
Answer: The molar concentration of acetic acid in the vinegar is 0.539 M.
Explanation:
The formula used is:
where,
and 
are the concentration and volume of base.
and 
are the concentration and volume of an acid.
Given:
Molar concentration of NaOH = 0.1798 M
Volume of NaOH = 30.01 mL
Volume of acetic acid = 10.0 mL
Now putting all the given values in the above formula, we get:
Thu, the molar concentration of acetic acid in the vinegar is 0.539 M.
Data:
weight of water before heating = 0.349
weight of hydrate before heateing = 2.107
Formula:
Weight percent of water = [ (weight of water) / (weight of the hydrate) ] * 100
Solution:
Weight percent of water = [ 0.349 / 2.107] * 100 ≈ 16.6 %
Answer: 16.6%
The heat of reaction is 1.8 KJ. A calorimeter is a device used in calorimetry, a procedure for calculating heat capacity and measuring the heat of chemical processes or other physical changes.
<h3>How to calculate calorimeter?</h3>
- A calorimeter is a device used in calorimetry, a procedure for calculating heat capacity and measuring the heat of chemical processes or other physical changes.
- Among the most popular kinds are differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters, and accelerated rate calorimeters.
- Calorimeter, a tool for estimating a material's heat capacity and measuring the heat produced during a mechanical, electrical, or chemical reaction. bomb thermometer.
Volume of water = 67.9 mL
Since the density of water is 1.00 g/mL
Density = mass/volume
Mass of water = Density × volume
Mass of water = 1 g/mL × 67.9 mL
Mass of water = 67.9g or 0.0679 Kg
Temperature change = 6.5 oC
Specific heat capacity of water= 4.184 J/Kg
From;
H = mcθ
m = mass of water
c = heat capacity of water
θ = temperature rise
Substituting values;
H = 0.0679 Kg × 4.184 J/Kg × 6.5 oC
H = 1.8 KJ
To learn more about calorimeter refer to:
brainly.com/question/1407669
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