The building block that makes up all matter in the universe is atoms.
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Answer: The mass of blue copper sulfate is 3.5 g
Explanation:
Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.
This also means that total mass on the reactant side must be equal to the total mass on the product side.
The chemical equation for the heating of copper sulfate crystals is:
Let the mass of blue copper sulfate be 'x' grams
We are given:
Mass of copper sulfate powder = 2.1 grams
Mass of water = 1.4 grams
Total mass on reactant side = x
Total mass on product side = (2.1 + 1.4) g
So, by applying law of conservation of mass, we get:
Hence, the mass of blue copper sulfate is 3.5 grams
Answer:
Ethane & propane are members of same homologous series : alkane which is indicated with Cn H2n+2
Explanation:
Answer:
Concentration of dissolved salts = 34,038.76 ppm
Explanation:
Given:
Salinity of ocean water = 34
Find:
Concentration of dissolved salts
Computation:
Salinity of ocean water = 34 g/l
1g/l = 1001.14 ppm
Concentration of dissolved salts = 1001.14 ppm x 34
Concentration of dissolved salts = 34,038.76 ppm
Answer: 2.58L
Explanation:
We must convert the temperature from °C to Kelvin temperature
T1 = 40°C = 40 + 273 = 313K
V1 = 2.32 L
T2 = 75°C = 75 + 273 = 348K
V2 = ?
V1 /T1 = V2 /T2
2.32 / 313 = V2 / 348
Cross multiply to express in linear form
313 x V2 = 2.32 x 348
Divide both side by the coefficient of V2 ie 313. We have
V2 = (2.32 x 348) /313
V2 = 2.58L
Therefore, if the temperature is raised to 75°C, the volume of the gas will be 2.58L
