Step 1
% by mass:
Mass of solute ---- 100 of solution
Mass of solution = mass of solute + mass of solvent = 55.0 g + 137 g = 192 g
Solute = NH4Cl
Solvent = Water (H2O)
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Step 2
Procedure:
55.0 g NH4Cl --------- 192 g solution
X ---------- 100 g solution
X = 29 g NH4Cl = 29 % by mass approx.
Answer: 29 % by mass
answer : 6CO2 + 6H2O → C6H12O8 + 5O2
Explanation:
Label Each Compound With a Variable
aCO2 + bH2O = cC6H12O8 + dO2
2. Create a System of Equations, One Per Element
C: 1a + 0b = 6c + 0d
O: 2a + 1b = 8c + 2d
H: 0a + 2b = 12c + 0d
3. Solve For All Variables
a = 6
b = 6
c = 1
d = 5
4. Substitute and Verify Result
6CO2 + 6H2O = C6H12O8 + 5O2
Answer:
Circle Any 3 Red Spheres
Explanation:
All of these atoms are Carbon (C), as diamond is a network solid composed entirely of Carbon. They are all the same.
Answer:
Here
Explanation:
Some assume our planet's changing distance from the sun causes the change in the seasons. That's logical, but not the case for Earth. Instead, Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane, that is, the plane of Earth's orbit around the sun
A merger between two companies that produce separate services or components along the value chain for some final product
