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When molecules that exhibit separation of charges are placed in an electric field, they become oriented positive end to negative end plate and negative end to positive plate.
Phosphoric acid can be prepared by reaction of sulfuric acid with "phosphate rock" according to the equation: Ca3(PO4)2+3H2SO4 ---> 3CaSO4 + 2H3PO4 What is the molar mass of Ca3(PO4)2?
Methane and hydrogen sulfide gases react to form carbon disulfide and hydrogen gas(es). CH4(g) + 2 H2S(g) CS2(g) + 4 H2(g) At a certain temperature and pressure 28.7 L of CH4 reacts with 57.4 L of H2S.
How density affect if some of the water in the graduated cylinder splashes out when the sample is dropped into the cylinder?
a gas sample containing 1.56 mol at 25degc exerts a pressure of 394 torr. some gas is added to the same container and
A sample of gas with a mass of 1.58 occupies a volume of 941 at a pressure of 753 and a temperature of 16. What is the molar mass of the gas.
What is Le Chatelier's principle and explain what happens to the dynamic equilibrium of the system as the cyclohexene is distilled to the receiver flask
In C7H8BrNO there are 4 degrees of saturation. Will an open chain structure with 2 triple bonds exist? Open chain with 2 triple bonds. Is this incorrect. Is it too unstable to exist or is it possible.
Distilled water in the same tube gave a reading of +0.016 degrees. Calculate the specific rotation for the compound.
Estimate the temperature needed to achieve the fusion of deuterium to make an alpha particle. The energy required can be estimated from Coulomb's law
Discuss the trend in ion size within a family and a period and put a group of ions in order of increasing (decreasing) ion size and explain the difference between atom and ion size of an element.
What solution will have the lowest boiling point?? 0.075 M CaCl2 0.020 M Na3PO4 0.050 M KNO3 0.025 M NH4NO3 0.10 M C6H12C6
Question- John titrates an unknown weak acid with 0.200 M KOH. At the equivalence point, the pH was 7.72 and John added 34.4 mL of base. When he had only added 17.2 mL of KOH, the pH was 3.58. What is the Ka of the weak acid
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