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How many moles of sodium bicarbonate are contained in 10mL of a 10% aqueous solution? a 10% solution has 10 g of solute in 100mL of solvent.
Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of nitric acid (HNO3) is mixed with an aqueous solution of sodium hydroxide (NaOH).
A 4.00 g sample of an aluminum-copperalloy reacts with excess hydrochloric acid. The 2.81 L of H2(g) produced is collected over water at a barometric pressure of 758.4 mmHg and 19°C. What is the mass percent of aluminum in the alloy
If a student determined that the circumference of a balloon filled by the boiling point of liquid nitrogen was 45 cm, what volume of nitrogen gas has been generated?
How much energy would be absorbed as heat by 75 g of iron when heated from 295 K to 301 K? (Cp for iron=0.449 J/g*C)
Write the anti-periplanar Newman Projection for the first step of the elimination. Using this conformation, be sure to write the correct geometry of the resulting intermediate
Explain from a micro and macro perspective what would happen and what might be observed when a bimetallic strip of aluminium and copper is heated from 27 degrees to 327 degrees?
Write reactions and equilibrium relationships for the first four complexes formed between cadium(II) and chloride
Draw the structure of the peptide in its predominant ionic form at a)pH 2; and b) pH 8 and determine its net charge at the specified pH values c) draw a titration curve of PH with respect to a dual axis with the equivalents of HCl added and the ne..
The freezing point of blood is -0.52C. (a) What is the osmotic pressure of the blood at 25C? (b) What is the vapor pressure lowering of the blood at this temperature?
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients (whic..
determine the volume of a cube 10,62 cm, give an example of four sets of measurements that illustrate an imprecise and inaccurate data
The frequency of vibration in a quartz watch is 33 kHz. What is the energy required to excite this vibration? Also compute omega for this vibration.
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