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A liquid hydrocarbon is found to be 16.37% H by mass. A 1.158-g vaporized sample of the hydrocarbon has 385-mL volume at 71.0 °C and 749 mmHg.
How many grams of NaOH are needed to make 10mL of 0.2M solution?How many grams of NaOH are needed to make 100mL of 1.0M solution?
The chemical substances in the first column of the table are either already shown as cations because they are either polyatomic ions.
What mass of O2 gas does the tank contain?What volume would the gas occupy at STP?
What volume (ml) of 23% (m/v) LiCl solution will provide 32 grams of LiCl? Round to one decimal places, do not include units in your answer.
A solution is prepared by mixing 25 ml of C5H12 ( density = 0.63 g/ml) and 45 ml of C6H14 ( density = 0.66 g/ml).
What is the density (g/ml) of a 100 ml sample of water that has 25 grams of NaCl added to it. (assume no volume change).
What is the theoretical yield of PH3 when 150 g of Na3P is mixed with 250 grams of water? If the actual yield is 30 g, what is the % yield?
Identify the atoms that are oxidized and reduced and ID the oxidizing agents and the reducing agents.
PowerPoint Presentation on the Element Boron.General Information: name of he element and its symbol; basic information
Briefly explain the term effective nuclear charge and give one possible application of this concept.
Determine the ratios of the masses of nitrogen that combine with 1.00 of oxygen in these compounds.
Molar solubility product of barium fluoride.Please help with the following problems. Provide step by step calculations for each.
How well does your experimental result match the theoretical value? What sources of error may explain the discrepancy?
Explanation of melting and boiling point deviations.Discuss the possible reasons for the discrepancies
If the reaction were written to produce H2O(g) instead of H2O(l), would you expect the magnitude of ?H to increase, decrease, or stay the same?
When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water.
Calculate the standard deviation for an exp. data set. The standard deviation of a data set is a measure of the 'spread' of a distribution of data
How do you tell if a compound is ionic, polar covalent, or non-polar? Find out for these compounds
Write the ionic and net ionic equations for the following reactions.
Calculate the mass in grams of Hydrogen chloride produced when 5.6 L of molecular hydrogen measured at STP react with an excess of molecular chlorine gas.
A .418g sample of gas has a volume of 115mL at 66.3 degrees Celsius and 743mmHg. What is the molar mass of this gas?
What is the only possible value of mi for an electron in an s orbital?
What is the maximum volume @STP of the butene mixture that could be obtained by dehydration of .081g of 2-butanol?
Beginning with 20.0g of H2S and 10.0g of H2O, what volume of hydrogen gas will be produced at 300K and a pressure of 800torr?