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Radar and sonar are based on similar principles. Sonar (which stands for sound navigation and ranging) uses ultrasound, and radar (which stands for radio detecting and ranging) uses radio waves. Explain the principle of detecting and ranging in these applications.
A 300mL water sample has an initial pH of 10. 40mL of 0.02 N H2SO4 were required to titrate the water sample to pH 4.5. What is the total alkalinity of water in mg/L as CaCO3
A student mixed 75.0 mL of water containing 0.75 mol HCl at 25 degrees C with 75.0 mL of water containing 0.75mo of NaOH at 25 degrees in a foam up calorimeter. The temperature of the resulting solution increased to 35 degrees C.
a scientist discovers a new thermometer which reads temperature in a new unit called the degree gatorg0. careful
10.0 moles of nh3 and 10.0 moles of h2 are introduced into a 2.00 l flask. at equilibrium 3.0 moles of nh3 gas remain.
Consider the same dilution above for an SN1 reaction. Would the time required for 95% for the starting material to react change as a result of this dilution?
Exact potential difference in the concentration cell, What will be the exact potential difference in the following concentration cells?
During an experiment tap water was tested to be a strong electrolyte. What can be said about the presence ionic impurities in tap water. Explain what can be said about the presence of molecular impurities in tap water
The standard enthalpy and entropy for a slightly soluble salt at 25 degrees C were determined to be 36 kJ and 47 J/K respectively. Calculate the standard Gibbs Free Energy for this salt.
When steam (hot water) is passed over iron, hydrogen gas and iron (3) oxide are formed. What weight of steam would be needed to react completely with 100.0g of iron.
The half-life of carbon-14 is 5,730 years. If you started with 100.0 g of carbon-14, how much carbon-14 would remain after 4 half-lives.
what volume (in mL) of 1.12 M NaOH is required to react with exactly 12.3 grams of ferric chloride, according to the following equation? FeCl3(aq) + 3 NaOH(aq) → Fe(OH)3(s) + 3 NaCl(aq)
After the reaction was completed. The solution was back titrated with a NaOH solution (33.50 mL of 0.1500 M).Calculated the Molecular Mass of MCO3. Determine what is this sample: CaCO3 ; MgCO3; or BaCO3 ?
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