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miskamm [114]
3 years ago
10

When Na2O is mixed with Mn(NO3)4 it forms NaNO3 and MnO2. We start with 25.0 g

Chemistry
1 answer:
coldgirl [10]3 years ago
5 0
I don’t know what have you heard that with na20
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9. Calculate the specific heat capacity of titanium if a 43.56 g sample absorbs 0.476 kJ as its temperature changes from 20.5 oC
Shalnov [3]

Answer:

c = 0.528 J/g.°C

Explanation:

Given data:

Mass of titanium = 43.56 g

Heat absorbed = 0.476 KJ  = 476 j

Initial temperature = 20.5°C

Final temperature = 41.2°C

Specific heat capacity = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 41.2°C - 20.5°C

ΔT = 20.7 °C

476 J = 43.56 g × c × 20.7 °C

476 J = 901.692 g.°C × c

c = 476 J / 901.692 g.°C

c = 0.528 J/g.°C  

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What type of bonding is butane​
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Solution A has a concentration of 3 M. If solution B is 5 times more concentrated than A what is it’s concentration?
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The answer is 15 M!!

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Option three, starfish is the correct answer since if you draw a line between it, it would be even!
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When using 100ml or 50ml graduated cylinder to what decimal place can your volume be estimated?<br>​
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I know that the 100-mL graduated cylinders are always read to 1 decimal place.

I think for 50 mL graduated cylinders, it lets you measure volumes up to 50.0 mL to the nearest 0.1 or 0.2 mL, depending on your exact cylinder.

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3 years ago
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