Answer:
C = (m / M) / (V / 1000) = (10 / 170) / (750 / 1000) = 0.078 M
Explanation:
Answer:
Identify the "given" information and what the problem is asking you to "find."
Given : Cl2O7
Find: % Composition (% Cl and %O)
List other known quantities.
Mass of Cl in 1 mol Cl2O7 , 2 Cl : 2 x 35.45 g = 70.90 g
Mass of O in 1 mol Cl2O7 , 7 O: 7 x 16.00 g = 112.00 g
Molar mass of Cl2O7 = 182.90 g/mol
Answer:
Explanation:
<h2>Electromagnetic waves differ from <em>mechanical waves </em>in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.</h2>
Answer: <u>Hydrogen.</u>
Explanation: <u>One problem with fuel-cell cars is that hydrogen gas is not readily available in pure form.</u> Fuel cell vehicles use hydrogen gas to power an electric motor. Unlike conventional vehicles which run on gasoline or diesel, fuel cell cars and trucks combine hydrogen and oxygen to produce electricity, which runs a motor. Hope this helps ^-^.
3% = 0.3
.03*540 = 16.2
540-16.2 = 523.8
Meaning 16.2 milliliters alcohol and 523.8 milliliters water. If my math is correct.