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F2(g) (M=38.00 g/mol) effuses through a pinhole at a rate of 0.01287 mol/s. At what rate does N2O4(g) (M=92.02 g/mol) effuse at the same pinhole?
Which of these is not a class of the phylum echinodermata?
What is the mass of ethanol that must be combusted to generate 20.4 L of CO2 at STP?
To buy a computer system, a customer can choose one of 4 monitors, one of 2 keyboards, one of 4 computers and one of 3 printers. Determine the number of possible systems that a customer can choose from
A sample of air in a container was analyzed to contain 0.390 mol N2, 0.102 mol O2 and 0.0085 mol other gases. What are the partial pressures of these gases in the container if the total pressure is 754 mm Hg?
1. Let Q(x) denote the statement “x is an integer”. What are the truth values?
A. Q(-1)
B. Q(0)
C. Q(8/2)
D. Q(sqrt(-4))
E. Q(sqrt(4))
Bag A contains 10 marbles of which 2 are red and 8 are black. Bag B contains 12 marbles of which 4 are red and 8 are black. A ball is drawn at random from each bag.
a) Draw a probability tree diagram to show all the outcomes the experiment.
b) find the probability that:
i. Both are red
ii. Both are black
iii) one black and one red
iv) at least one red
To buy a computer system, a customer can choose one of 4 monitors, one of 2 keyboards, one of 4 computers and one of 3 printers. Determine the number of possible systems that a customer can choose from
According to milton frideman," the stability in the demand for money is just a behaivioural fact." Examine this statement with emperical evidence.
Discuss what a child-centred and participative pedagogies imply in the learning context.
#339914 on Dec 2023