Determine the percentage composition of this compound
A sample which is having 3.87 mg of ascorbic acid gives.58 mg H2O and 5.80mg CO2 on combustion. Determine the percentage composition of this compound? When the ascorbic acid contains only C, H, and O.
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If we sample many times, the proportion of intervals computed that cover the true mean is about 95%. There's a 95% chance that the true mean falls between 3.488 and 4.333.
Determine pelidisi (to nearest whole number) of the person whose weight is given as 51.145 g and whose sitting height is given 69.5 cm. is this individual undernourished or overfed?
Determine the melting point of ice under a pressure of 10MPa. Suppose that the density of ice under these conditions is approximately 0.915 g cm-3 and that liquid water is 0.998 g cm-3
Test the hypothesis at 5% level of significance that the recorded data may be fitted by the hypergeometric distribution h(x; 8, 3, 5), x = 0, 1, 2, 3.
Its height, h, above water t seconds after being thrown is provided by equation h = -16t²- 80t + 200. Find to nearest 10th of the second, how long it will take ring to hit water.
Suppose the distributions of results for the laboratories are of the same shape but not normal. The analytical results of the sample material are as follows:
According to the Heisenberg uncertainty principle, calculate the minimum uncertainty with which it's position can be known? An electron in a hydrogen atom has a speed of 4.42x10^8cm/s with an uncertainty of 4.25%.
Calculate the equilibrium molar ratio of nitrogen to oxygen ([N2]/[O2]) dissolved in the water which is exposed to air at 298 K. Air contains 78% N2 and 21% O2 (mole percentages).
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