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Suppose that you were to fill a 1L beaker with only 200 mL of water and it is not deep enough to make the water level inside and outside the graduated cylinder the same. If the water in the cylinder is higher than the water outside the cylinder, will the calculated mass percent of metal in the sample be greater than, less than, or equal to the real mass percent?
Determine the average atomic mass of helium, which has two isotopes having atomic masses 4.0026 amu and 3.0160 amu.The relative abundance of the two isotopes is 99.9999 percent and 0.0001 percent, respectively.
A gas occupies a volume of 1.0 L at a temperature of 27°C and 500 torr pressure. calculate the volume of the gas if the temperature is changed to 60°C and the pressure to 700 torr
These 3 solutions including 2.362 g of Rb2S, 1.635 g of NaClO 4 , and 0.796 g of CuCl 2 , respectively are combined together? now calculate what would be the mass of this precipitae?
Consider a nitrite (NO2-) analysis for rainwater samples. Gas chromatographic (GC) vs. spectrophometric approaches were compared with the following results as means?
When 157mg of dipentylamine was added to 122mg of benzoic acid and 2mL of water, a completely homogenous solution was formed. Draw the sturctures of the species present in the water.
Suppose y was measured five times and average of these five measurements was 3.75. What is the uncertainty in x based on these five measurements?
nonbonding domains, polarity, intermolecular attractive forces, and which IMAF is the most important
Net ionic equation for Sodium Carbonate and Lithium sulfate. Sodium carbonate and sulfuric acid. Strontium chloride and lithium sulfate.
What is the heat capacity of the bomb?(Assume that the quantity of water surrounding the bomb is exactly 2250 g).
Amides undergo hydrolysis to carboxylic acids on treatment with alkali. Diagram a suitable mechanism for the conversion of benzamide to benzoic acid
How much heat in joules is required to heat a 46 {rm g} sample of aluminum from 80 F to 146 F?
How many moles of oxygen will be produced if 27.6 grams of Al are produced?
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