To calculate the massive of lithium because that given number of moles, we usage the equation:
We are given:
Number of mole of lithium = 5.40 moles
Molar fixed of lithium = 6.94 g/mol
Putting worths in over equation, we get:
Hence, the mass of lithium is 34.7 grams.
You are watching: What is the mass in grams of 5.40 moles of lithium
First you should kwow the molar massive of the lithium, therefore you can use your periodic table.
Molar massive of lithium =
Then you need to relate the molar mass of the lithium with the quantity of moles the trouble gives you:
Rounding the answer
37.5 g that lithium
You would usage the formula:n =
Need 1.to uncover atmospheric pressure, go to your local weather and also find the press in inches. Convert to mmhg by multiplying by 25.4. Record answer in data table. (patmosphere=25.4 x regional weather pressure reading) 2.since the gas in your i graduated cylinder is a mixture that butane and water vapor, you must identify the partial pressure of the butane, pbutane, alone. To do this, usage the chart listed below and record the partial pressure of the water vapor, pwater, in ~ the temperature you recorded. Use the following formula to compute the partial pressure of the butane. (pbutane =patmosphere - pwater) pbutane =
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Categorize lock by metal, nonmetal, in periodic tableductilenon-ductilemalleableoften obtain electrons easilygood conductorpoor conductorcan be liquidselements