Calculate the mole fractions
Given % composition of air: N2 78.09%,O2 20.94%, Ar 0.93%
a) Calculate the # of molecules of N2, ofO2, and of Ar in 1.00 L of air at 21 ºC and 1.00atm.
b) Calculate the mole fractions of N2,O2, and Ar in the air.
Expected delivery within 24 Hours
When rolling a fair die 195 times, what is the probability of rolling a 6 greater than 25 times? Show how to get the answer using a Ti-84 calculator please, step by step.
To a sol containing 2.00g of CaCl2 & RbCl we add an excess of AgNO3 to form 3.45 gof AgCl(s) precipitate. What is the % of RbCl in theoriginal mixture.
Air at 5 bar and 177?C (State 1) is expanded through a turbine to 1 bar and 27oC (State2). Find the total rate of entropy generation (kW/K) for turbine and its surroundings.
A charge of -4.00 nC and a charge of -5.35 nC are separated by a distance of 40.0 cm. Find the position at which a third charge of +7.80 nC can be placed so that the net electrostatic force on it is zero.
Calculate the # of molecules of N2, ofO2, and of Ar in 1.00 L of air at 21 ºC and 1.00atm. Calculate the mole fractions of N2,O2, and Ar in the air.
The mass flow rate is 11.9 kg/s. Neglecting potential energy effects, determine the power developed by the turbine, in kW.
Two point charges lie along the y-axis. A charge of q1 = -8.5 μC is at y = 6.0 m, and a charge of q2 = -7.5 μC is at y = -4.0 m. Locate the point (other than infinity) at which the total electric field is zero.
Suppose that the probability of a baseball player getting a hit in at bat is 0.2807. If the player has 38 at-bats during a week, what's the probability that he gets greater than 9 hits?
Firstly, In order to perturb the structure of protein J,you can make any substitution you wish for aa21 ( the 21st aminoacid residue from the NH2 terminal), which is Lys.
1936596
Questions Asked
3,689
Active Tutors
1435743
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: Which of the following is not a contributing factor to a duodenal ulcer?
What is eugenics? Need Assignment Help? Group of answer choices breeding animals for strength and health characteristics an emphasis
Question: Which of the following two practices may help prevent colonies start queen cells for swarming
Question: What is the best way to know if a colony is ready to swarm: Group of answer choices
Problem: Spring is a busy time for beekeepers. They must focus on many different aspects in colony management.
What eukaryotic kingdom includes the common ancestors of three other kingdoms but not all of their descendants, and is therefore not a clade?
Question: Select the common features of cladograms from the choices below.