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4 years ago

How many miles are in 62 grams of copper (ll) nitrate

Chemistry

1 answer:

grandymaker [24]4 years ago

8 0

Did you mean moles? Instead of miles

If so it’s 0. 330568289543697

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At the same temperature, which has a higher viscosity, acetone or glycerin?

zalisa [80]

Acetone Glycerine The 0.0032 14.9 Answer Is Glycerine.

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3 years ago

Read 2 more answers

A student mixes a 10.0 mL sample of 1.0 M NaOH with a 10.0 mL sample of 1.0 M HCl in a polystyrene container. The temperature of

ElenaW [278]

Answer:

The experimental value of ΔH is -50 kJ/mol

Explanation:

Step 1: Data given

Volume of 1.0 M NaOH = 10.0 mL = 0.01 L

Volume of 1.0 M HCl = 10.0 mL = 0.01 L

Temperature before mixing = 20 °C

Final temperature = 26 °C

Specific heat of solution = 4.2 J/g°C

Density = 1g/mL

Step 2: Calculate q

q = m*c*ΔT

⇒ with m = the mass

⇒ 20.0 mL * 1g/mL = 20 grams

⇒ c = specific heat of solution = 4.2 J/g°C

⇒ ΔT = T2 -T1 = 26 -20 = 6 °C

q = 20g * 4.2 J/g°C * 6°C

q = 504 J

ΔHrxn = -q ( because it's an exothermic reaction)

ΔHrxn = -504 J

Step 3: Calculate number of moles

Moles = Molarity * volume

Moles = 1M *0.01 L = 0.01 moles

Step 4: Calculate the experimental value of ΔH

ΔHrxn = -504 / 0.01 mol = -50400 J/mol = -50.4 kJ/mol

The experimental value of ΔH is -50 kJ/mol

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4 years ago

How many atoms of oxygen are represented in 2Fe(NO3)2? ( My answer: C) Correct?

astra-53 [7]

How many atoms of oxygen are represented in 2Fe(NO3)2?

Answer: 12

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4 years ago

A type of rock that undergoes changes because of heat and pressure

raketka [301]

Answer:

metamorphic rocks

Explanation:

metamorphic rocks are made from the pressure and heat "metamorphic" comes from greek and it stands for "to change form"

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3 years ago

Page : Date: What do you mean by a symbol ? What are the bases of making symbols?

xxTIMURxx [149]

Answer:

Hi, There! your Answers are Below And Are 100% Correct

Symbols are the basis of culture. A symbol is an object, word, or action that stands for something else with no natural relationship that is culturally defined

Explanation: The Answer to your Other Question Is In the Pic :)

(Dont forget to mark thanks)

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3 years ago