Fertilizer runoff has a negative impact on aquatic ecosystems because _______.
2 answers:
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Answer: The volume of boron trifluoride gas that is collected is 18.6 L
Explanation:
According to the ideal gas equation:
PV=nRT
P = Pressure of the gas = 1 atm
V= Volume of the gas= ?
T= Temperature of the gas in kelvin =
R= Gas constant =
n= moles of gas= 854 mmol = 0.854 mol (1mmol=0.001mol)
Thus volume of boron trifluoride gas that is collected is 18.6 L
Answer:
grams/mol of carbon is needed to react with hydrogen gas to produce 59.8 grams of acetylene (C2H2)
Explanation:
The molecular weight of acetylene is 26.04 g/mol
Molecular weight of carbon is equal to 12.011 g/mol
Two carbon atom produces one acetylene molecule.
Thus, 2 * 12.011 g/mol of carbon is used to produce 26.04 g/mol of acetylene,
Amount of carbon required to produce 59.8 grams of acetylene
grams/mol
grams/mol of carbon is needed to react with hydrogen gas to produce 59.8 grams of acetylene (C2H2)
The mass of salt dissolved in 1.0 L of 0.010 M SO₄²⁻ is 0.67 g/l
<h3>How can we Calculate the mass of the salt dissolve in 1.0 L of 0.010 M SO₄²⁻ ?</h3>To calculate the mass of the salt dissolved, we multiply by the mass of 1 mole to molar solubilty and lets assume we are using the anhydrous salt CaSO₄ for which the Molar Mass (M) = 136.1
Mass of the salt dissolved = Molar solubility x Molar mass
Molar Mass (M) = 136.1
Molar solubility = ?
Formula to find molar solubilty ;
Molar solubility = Square root of Solubity product (Given)
S = (Value of Solubity product is given in the question)
= 4.9 × 10⁻³
Mass of the salt dissolved = Molar solubility x Molar mass
= 4.9 × 10⁻³ x 136.1
= 0.67 g/l
Learn more about Solubility here ;
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