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When 25g of magnesium reacts with 75g of hydrochloric acid it produces 95g of magnesium chloride and hydrogen gas. Given the above information, determine the mass of hydrogen gas formed in the reaction.
Three colorless solution in test tubesm whit no labels arein a test rack on the laboratory bench. lying beside the test tubesare three labels, potassium iodide, KI, silver nitrate, AgNO3 andsolution sulfide Na2S
Draw the stereochemical (3-D) structures of these compounds and explain these observations.
how many calories are used to heat a 50g sample of water from 8.1 degrees celius to 27.4 degrees celcius?
The bed diameter is .40 m and the desired height of the bed at these minimum fluidizing conditions is 1.75m. Calculate the amount of solids needed.
The mass percent of a three component gas sample is 58.0% C2H4O2, 14.6% NH3 and 27.4% CH2O. Calculate the partial pressure (atm) of CH2O if the total pressure of the sample is 0.340 atm.
The vapor pressure of pure methyl alcohol at 19 degrees celcius is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. Assume a mixture of methyl alcohol and ethyl alcohol is ideal.
A saturated solution of silver benzoate C6H5COOOAg has a pH of 8.5. The Ka for benzoic acid C6H5OOH, is 6.5x10-5 estimate the value of the Ksp for silver benzoate
How much Fe++ could be present in water containing 0.4 x 1e-02 M HCO3- (bicarbonate) without causing the precipitation of FeCO3 (Ksp=10**(-10.7))
As a separation and detection method, would TLC or paper chromatography yield better results in the analysis of each of the following pairs of compounds?
A tire has a pressure of 780 mmHg at 27°C. If the tire is heated to 47°C on hot pavement, what the new pressure will be:
crystallizes in a body-centered cubic array of atoms in which the length of the unit cell's edge is 569.7 pm (10-12 m). Calculate the density of the metal in g/cm3.
where e is the magnitude of the charge on an electron and ε0 is the vacuum permittivity (a fundamental constant). What is the operator for this potential energy?
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