Answer:
Weight % of NH₃ in the aqueous waste = 2.001 %
Explanation:
The chemical equation for the reaction
Moles of HCl = Molarity × Volume
= 0.1039 × 31.89 mL × 
= 0.0033 mole
Total mass of original sample = 25.888 g + 73.464 g
= 99.352 g
Total HCl taken for assay = 
= 0.1083 g
Moles of NH₃ = 
= 0.03047 moles
Mass of NH₃ = number of moles × molar mass
Mass of NH₃ = 0.03047 moles × 17 g
Mass of NH₃ = 0.51799
Weight % of NH₃ = 
%
Weight % of NH₃ in the aqueous waste = 2.001 %
Answer:
2,950
joules.
Explanation:
The units don’t need conversion, and the formula doesn’t need changing.
First, determine the energy required to melt the ice:
Q = mHf
Q = 6.70 g × 334
Q = 2,240 J
Next, determine the energy needed to raise the temperature of the newly melted water:
Q = mCΔT
Q = 6.70 g × 4.186 × (25.4°C – 0.0°C)
Q = 712 J
Now, add the energy values. Express the answer to 3 significant figures:
2,240 J + 712 J = 2,950 J.
The first one is d
second one is a
Answer:
Explanation:
When a chemical change happens or chemical reaction happens something yields at reactants and something at products
Representing them is called chemical equation
Answer:
Intensive properties do not depend on the quantity of matter. Examples include density, state of matter, and temperature. Extensive properties do depend on sample size. Examples include volume, mass, and size.
Explanation:
Brainly!!!
pls
