Answer:
<h2>mass = 200.23 g</h2>
Explanation:
The density of a substance can be found by using the formula
Since we are finding the mass
<h3>mass = Density × volume</h3>
From the question
Density = 0.81 g/mL
volume = 247.2 mL
Substitute the values into the above formula and solve for the mass
mass = 0.81 × 247.2
= 200.232
We have the final answer as
<h3>mass = 200.23 g to 2 decimal places</h3>
Hope this helps you
What you have to do is balance the chemical equations to make sure everything is even on both sides. If you want me to help you answer the questions comment back
Answer:
36.693
Explanation:
From the question given, the following were obtained:
Let 35Cl be isotope A and 37Cl be isotope
For isotope A (35Cl),
Mass number = 34.9700
Abundance = 13.85 %
For isotope B (37Cl),
Mass number = 36.9700
Abundance = 86.15 %
Atomic mass =
[( Mass of AxAbundance A)/100] + [(Mass of BxAbundance B)/100]
[(34.97x13.85)/100] + [(36.97x86.15)/100]
= 36.693
Answer:
1. D (24.0 moles CO2)
2. A (.239 moles H2)
Explanation:
1. First Balance the equation
1 C3H8 + 5 O2 ---> 3 CO2 + 4 H2O
Then set up a stoiciometric equation so that the moles of O2 cancel out
40mol O2 x 
= 24.0 moles CO2
2. Set up a stoichiometric equation
10 grams Fe x 
x 
= 0.239 moles H2
Answer is: D. solute.
In aqueous solution, solvent is water and solute (in this example carbon dioxide CO₂) is a substance dissolved in water.
The amount of solute that can be dissolved in a solvent depends of chemical composition, temperature and pressure.
Solution has a uniform composition and is able to be separated by physical means.
