Protons: 12
Neutrons: 13
<span>Electrons: 12</span>
Answer:
0.054 moles
Explanation:
It is the rounded off answer.
Answer:
The answer is 196.96655.
Explanation:
We assume you are converting between grams Gold and mole.
You can view more details on each measurement unit:
molecular weight of Gold or mol
The molecular formula for Gold is Au.
The SI base unit for amount of substance is the mole.
1 grams Gold is equal to 0.0050770041918285 mole.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between grams Gold and mole.
Type in your own numbers in the form to convert the units!
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Answer:
31395 J
Explanation:
Given data:
mass of water = 150 g
Initial temperature = 25 °C
Final temperature = 75 °C
Energy absorbed = ?
Solution:
Formula:
q = m . c . ΔT
we know that specific heat of water is 4.186 J/g.°C
ΔT = final temperature - initial temperature
ΔT = 75 °C - 25 °C
ΔT = 50 °C
now we will put the values in formula
q = m . c . ΔT
q = 150 g × 4.186 J/g.°C × 50 °C
q = 31395 J
so, 150 g of water need to absorb 31395 J of energy to raise the temperature from 25°C to 75 °C .
You are looking for an element in the fourth period and a transition metal. As most have about 3 valence electrons. Gallium and Scandium work perfectly.
