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A student used 22.0 mL of 0.1035 M NaOH to titrate 20 mL of orange juice. How many grams of citric acid were present in the sample? The molar mass of citric acid, H3C6H5O7, is 192.12 g/mol.H3C6H5O7(aq) + 3NaOH(aq) Na3C6H5O7(aq) + 3H2O(l)
a gas is placed in a balloon with a volume of 3.0L at 35C and 800 torr. What would be the new volume for the gas if placed under STP
How many grams of NaOH are contained in 230.0 mL of a 0.800 M sodium hydroxide solution?
of 2.60 cm^2.if solar radition is 1150 W/m^2, how many photons strike the leaf every second.
What is the stoichiometric coefficient for aluminum when the chemical equation is balanced using the lowest, whole-number stoichiometric coefficients?
Suppose you have a sample of sodium weighing 11.42 g. How many atoms of sodium are present in the sample.
We have a nuts, bolts, and indirect measurement lab coming up. We'll get a bag of nuts/bolts and I need 2-3 methods on estimating the mass of a bolt without opening the bag. Thanks.
in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction
Calculate the pH after 10.0, 20.0, 30.0, and 40.0 ml of 0.100M NaOH have been added to 40.0ml of 0.100M HClO.
Calculate (a) the mole fraction of the solute, (b) the number of moles of solute in the solution, and (c) the molecular mass of the solute.
Yet a generic figure is 1kB per particle. Assuming this figure is exact, what is the molar enthalpy of melting of Argon (in kJ/mol), whose melting temperature is 83.85K?
How many grams of water can be cooled from 30 degrees C to 18 degrees C by the evaporation of 49g of water? (The heat of vaporization of water in this temperature range is 2.4kJ/g . The specific heat of water is 4.18J/k
A gas under a pressure of 74 mmHg and at a temperature of 75C occupies a 500.0-L container. How many moles of gas are in the container?
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