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what is the density in g/cm^3 units of a solution that has a net mass of 54.8 g and occupies a 0.050 L volume. please show your work step by step, use the correct number of significant figures and units.
If 5.45mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram
The specific heat of an unknown metal is found to be 0.233 J/K g. The Law of Dulong and Petit predicts a molar heat capacity of 26 J/K mol. Use this law to estimate the molar mass of the metal.
I need help describing an experiment where one could measure the value of the extinction coefficient of a solution with a concentration (c mol/L) of chlorophyll in water for a given wavelength.
When visible light passes through a solution of nickle(2) sulfate, a green solution results. a. What are the spin-allowed transitions responsible for this color
he sample required 5.5 mL of 0.0019 M NaOH to titrate the sample to neutrality. What was the pH of the gastric juice?
what mass of magnesium in reaction with hydrochloric acid is needed to produce 128 ml of hydrogen h2 gas? the h2 gas is
If two reactions sum to an overall reaction, and the equilibrium constants for the two reactions are and , what is the equilibrium constant for the overall reaction
If the density of carbon dioxide in air is 0.65 mg/L, what volume is occupied by 25 kg of carbon dioxide?
Acid rain over the Great Lakes has a pH of about 4.5. Calculate the [H_3O^+] of this rain.
a solution of 62.4 g of insulin in enough water to make 1.000 l of solution has an osmotic pressure of 0.305 atm at
In this exercise it was also assumed that the calorimeter was a perfect insulator and that no heat was lost to the surroundings.
What's the volume of pure hydrogen present in a sample of 55.0 mL of gas saturated with water vapour at 27 °C, if the total pressure is 104.8 kPa?
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