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an unknown liquid with boiling range of 179-181 C is insoluble in water, gives a blue green suspension with chromic acid and immediately forms a separate layer when shaken with Lucas' reagent. Its IR spectrum contains bands at 3060, 2805, 2730, 1705, 745, and 690. Give the name and structure of the unknown.
An unknown compound contains only carbon, hydrogen, and oxygen(CxHyOz). Combustion of 5.50g of this compound produced 8.07g of carbon dioxide and 3.30g of water.
Calculate how the amount of AgCl(s )will change when the equilibrium is disturbed by Adding AgNO 3
Coal combustion can affect freshwater or marine (saltwater) organisms in different ways. Describe the steps involved in one such way, from combustion to the effect(s) on one species or group of organisms.
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:
If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 27 cm3 of sodium borohydride (of density 1.074 g/cm3)?Answer in units of mol
A compound is constituted by mass of 22.6% phosphorus, the rest being chlorine. Given that a volume of 307 mL of the gas has a mass of 1.55 g at 25 °C and 90 kPa, find the molecular formula for this compound
The specific heat capacity of silver is 0.240 J/(g x degrees C). Calculate the energy (in kJ) required to raise the temperature of 263 g Ag from 273K to 278 K.
The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen gas, as is done to fill weather observation balloons.
Consider the reaction CH4(g) + X2(g) → CH3X(g) + HX(g) , where X is a halogen-like atom (Group 7A). Calculate ?H for this reaction if bond energy tables give the following values
A sample of nitrogen gas occupies a volume of 3.87 liters at 52.8 oC and 2.11 atm. What will the new temperature (in °C) when the volume increases to 4.55 liters and the pressure remains constant?
student takes 116. g of BaCl2, and reacts it according to the following equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?
To determine the volume of a gas using ideal gas law and evaluate the number of moles of a gas using ideal gas law.
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