The pressure of a gas is measured as 49 torr. Represent this pressure in both atmosphere and pascals.

A sample of hydrogen gas, has a volume of 8.56 L at a temperature 0oC and pressure of 1.5 atm. Calculate the number of moles of hydrogen present in this gas sample (Assume that the gas behave ideally)

Chemistry: You put in 3.5 mol ammonium nitrate, how many moles of water are produced? 2NH4NO3=2N2+4H2O+O2

Calculate the number of moles of carbon atoms present in 1.8g of ethanol

If body fats has a density of 0.94 g/mL and 3.0 liters of fat are removed, how many pounds of fat were removed from the patient?

In a particular breed of cattle a black coat is dominant over red coat if a cow with a red coat is crossed with a black bull that is heterozygous for coat color what percentage of offspring would you expect to be black

You are about to open a container of soy milk but notice that there are instructions to "shake well before serving." the soy milk is most likely a

Give reason: a. Fractionating columns with beads are used for fractional distillation b. Crystallisation is a better technique than evaporation

How can a gardener remedy soil that is overly acidic?

True or false everything has the same amount of energy?

4NH3 (g) + 502 (g) - >6H20g) + 4NOg) What is the enthalpy change for this reaction?