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Problem- Rainwater from Menlo Park, California is said to contain 0.3 mg/L of silica (SiO_2). What is the concentration of the silica in the rainwater in terms of: ppt (parts per trillion), ppb, molarity (M), and % solution?
Articulate your knowledge to crack the above question
Question- What is the mechanism for a phenol to p-nitrophenol. why can't a meta nitration be produced from a phenol? Please show detail. Explain why and show resonance, arrows.
Write a balances Chemical equation showing how you could prepare each of the following salts from an acid-base reaction:KNO3,NaBr and Cas.
A balloon filled with helium gas at 20C occupies 2.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at -196C, raising the pressure to 5.20 atm.
Large quantity of ammonia are burned in the presence of platinum catalyst to give nitric oxide as d first step in the preparation of nitric acid.
Explain the maximum amount of electrons in an atom that has the following quantum numbers or designation. (n=4, l=3, ml=2)
an insulated container is used to hold 47.10 g of water at 26.10c. a sample of copper weighing 13.30g is placed in a
If 2.44 moles of Helium gas has a pressure of 2.4 atm at 343 K, what volume must the gas occupy.
Sodium azide (NaN3) is the chemical used in air bags. Sensors detect the initial crash and electrically initiate the explosion of a small charge of this compound
the atomic spacing in rock salt nacl is 0.282 nm. find the kinetic energy in ev of a neutron with a de broglie
Calcium in blood or urine can be determined by precipitation as calcium oxalate CaC2O4. The precipitate is dissolved in strong acid and titrated with potassium permanganate. The products of the reaction are carbon dioxide and Manganese ii ions.
Our book shows a radioactive decay series in which a sample that starts out as U-238 eventually winds up becoming non-radioactive Pb-206. The half life for this process is extremely long, being 4.51 x 10^9 years. Consider a radioactive mineral sam..
When hydrochloric acid of 200 mL was mixed to a small piece of CaCO3 in the same calorimeter, the temperature increased by 4.25 degree celsius. determine the heat output for this reaction?
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