m = dV (d for density (even though greek letter rho should be used))therefore m = (1.0 g/cm3)(5 L)m = (1.0 g/cm3)(5 dm3) (since 1 L = 1 dm3)m = (1.0 g/cm3)(5000 cm3) (since 1 dm3 = 1000 cm3)m = 5000 gm = 5 kg2,000 cm³
-1 multiplied by -1 is 1
When working with exponents there are a couple of rules for 1 to remember. Any number that is brought to the power of “one” will always equal that same number or itself. Secondly one at any power is still one. So for two equal bases to have their product be one, they both can equal one.
one squared equals one.
One to any power is equal to one.
The molar mass of sulfuric acid (H2SO4) is 98 g/mol. To find the concentration in mol/dm3, you need to divide the mass concentration by the molar mass. So, 4.90g/dm3 รท 98 g/mol = 0.05 mol/dm3.
You would dilute the 0.1 mol/dm3 copper sulfate solution by a factor of 10 to get 0.01 mol/dm3. To make 100 cm3 of this new solution, you would mix 10 cm3 of the 0.1 mol/dm3 solution with 90 cm3 of water.
The balanced chemical equation for the reaction is 2Mg + O2 -> 2MgO. This means that 1 mol of Mg will react with 0.5 mol of O2 to form 1 mol of MgO. The molar mass of Mg is 24 g/mol and MgO is 40 g/mol. Therefore, 12 g of Mg will require 3 mol of O2 (3 * 32 g) for complete conversion to MgO.
1 ml is stand for one milliliter, which is 1/1000 of one liter. Mathematically, one liter is 1 dm3 so 1/1000 of one liter equal 1/1000 of 1 dm3, then 1ml equal 1cm3. cc is stand for cubic centimeter, it's refers to the volume of a cubic which have 1cm edge so it's volume is 1cm3. So we can see the problem is clearly solved, 1cc equal 1ml.
To convert cm3 to moldm-3, you need to divide by 1000. This is because 1 cm3 is equal to 0.001 dm3 (or 1/1000 dm3). So, to convert a volume in cm3 to moldm-3, you divide the volume in cm3 by 1000.
Assuming ideal gas behavior, you can use the ideal gas law equation PV = nRT to find the number of moles of NO. Then, you can use the molar mass of NO (30.01 g/mol) to calculate the mass by multiplying the number of moles by the molar mass.
1 dm3 is equal to 1 liter. They are equivalent volumes, with 1 liter being the same as 1 cubic decimeter.
2.2 mol water = 2.2 (mol) * 18 (g/mol) water = 39.6 (mol*g/mol) = 40 g18 g/mol = mol mass of H2O = 2*H + 1*O = (2*1 + 16) g/mol
1 liter is 1 dm3
which is gigger dm3 or mL
1 mol = 1 mol
22,4 L is the molar volume. 1 mol of oxygen has 32 g and and 6,022140857.10e23 molecules.