Can someone answer these plss :-)))
1. You have sample of 269.16 grams of water which contains 29.91 g of Hydrogen and 239.25 g of Oxygen.
Calculate the % Composition of H and O.
What is the mass ratio of this sample of water?
2. A sample of 150.00 grams of NaCl is composed of 60.00 g of Na and 90.00 g of Cl
Calculate the % Composition of Na and Cl
Calculate the mass ratio of your sample
Answers: 2
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Chemistry, 23.06.2019 00:00
Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?
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What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.
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Can someone answer these plss :-)))
1. You have sample of 269.16 grams of water which contains 29.9...
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