Answer:
Explanation:
Data tables help you keep information organized. If you're collecting data from an experiment or scientific research, saving it in a data table will make it easier to look up later. Data tables can also help you make graphs and other charts based on your information.
Answer : To calculate the number of moles of copper (II) chloride in 15.0 ml of 0.500 M solution, you have to simply use the given calculation:
15 (ml) X 0.500 (moles) / 1000 (mL) = <span>0.00750 moles of CuCl₂ .
</span>
The molar heat of vaporization of substance Z is 3.375 kJ/mol.
<h3>
Molar heat of vaporization of substance Z</h3>
The molar heat of vaporization of substance Z is calculated as follows;
ΔH(vap) = E/n
where;
- E is the energy required
- n is number of moles
ΔH(vap) = 5.4 kJ/1.6
ΔH(vap) = 3.375 kJ/mol
Thus, the molar heat of vaporization of substance Z is 3.375 kJ/mol.
Learn more about molar heat here: brainly.com/question/20716582
#SPJ1
No because the second atom has 1 more neutron and 2 more electrons.
Answer : The pressure would have to be increased to 6.0 atm.
Explanation :
According top the Henry's Law, the solubility of a gas in a liquid is directly proportional to the pressure of the gas.
or,
where,
= initial solubility of gas = 0.85 g/mL
= final solubility of gas = 5.1 g/mL
= initial pressure of gas = 1.0 atm
= final pressure of gas = ?
Now put all the given values in the above formula, we get the final pressure of the gas.
Therefore, the pressure would have to be increased to 6.0 atm.