If 8.28 L of hydrogen gas at SATP is produced, how many moles of aluminium were reacted?
The volume of a sample of a gas is 8.39 L at 33oC. What would be the volume if the temperature is changed to 265 K, while the pressure is constant?
How much heat energy is required to change the temperature of 56.75 g of
water from 23.0 C to 56.7 C? (specific heat capacity of water is 4.18 kJ/(kg
OC))
A dart hits the circular dartboard shown below at a random point. Find the probability that the dart lands in the shaded square region. The radius of the dartboard is 9
in, and each side of the shaded region is 3in.
Two-tailed test; variance is known, alpha = 0.05 , n = 40
Number of occurrence of a tossing four coins
2900 dollars is placed in an account with an annual interest rate of 9%. How much will be in the account after 13 years, to the nearest cent?
Determine the value of the unknown in the given matrix equalities
(2 −1 x
4 7 0)
(x 3
−2 5
1 −4)
=
(4 −2
1 5 )
What is the computed z of the problem stated below?
The average monthly salary for a call center representative in the Philippines is P 21,700 with a standard deviation of P 6,000. Find the probability that a group of 64 randomly selected call center representatives has an average salary higher than P 22,000 per month.
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