Benzaldehyde with the para-hydrogen
One of the precursors you need to verify a mechanism is benzaldehyde with the para-hydrogen isotopically labelled as deuterium (para-deuterobenzaldehyde). Your starting material is para-bromobenzaldehyde.
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How long will it take to deposit 89 g of magnesium from an electrolysis cell containing Mgo at a current of 12.5. A magnesium formation is the only cathode reaction mg = 24glmol.
Strontium metal crystallizes in a cubic unit cell which has an edge length of 612 pm. If the mass of an atom of Sr is 87.62 amu, and the density of Sr metal is 2.54 g/cm3, calculate the number of atoms per unit cell. (1 amu = 1.661 × 10-24 g
Consider a container of volume 250ml that is divided into two compartments of equal size. In the left compartment, there is argon at 100KPA and 0°C; in the right compartment there is neon at the same temperature and pressure.
If the partial pressure of nitrogen is 577 mmHg, oxygen is 148 mmHg, water vapor is 20 mmHg and argon is 7 mmHg, what is the observed barometric pressure?
When 0.549 moles of a certain gas fill a balloon the volume is 75 mL. If enough of the same gas is added to the balloon until 1.44 moles of gas are present, what is the new volume of the balloon?
How much calcium silicate would be formed as a by-product? How much sand would be used up in the same reaction?
Osmium has a density of 22.6 g/cm3. What volume would be occupied by a 21.8 g sample of osmium?
Knowing that the tank contains compressed air under a pressure of 8 MPa, determine the magnitude T of the applied torque for which the maximum normal stress in the tank is 75 MPa.
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