What mass of calcium citrate would be needed to provide
The recommended daily dietary intake of calcium for adult men and pre-menopausal women is 1100 mg/day Calcium citrate , Ca3(C6H5O7)2 What mass of calcium citrate would be needed to provide the recommended daily intake of calcium?
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There is a 25% chance that a fuse of a certain type is defective. Approximate the probability of having more than or equal to 15 defective fuses in a box containing 30 fuses.
A railroad flatcar is loaded with crates having a coefficient of static friction of 0.360 with the floor. If the train is moving at 43.0 km/hr, in how short a distance can the train be stopped at a constant deceleration without causing the crates
The resistance wire is placed horizontally in water at 20 degree celsius. Determine the outer surface temperature of the resistance wire in steady operation. For water take beta = 0.000365.
A valve connecting the two compartments is opened, and the water is allowed to come to equilibrium adiabatically. Calculate the entropy change for this isolated system.
A sheet of 0.001" thick BCC iron foil separates a high hydrogen content gas from a low hydrogen content gas at 725 degree C. Determine the concentration gradient of hydrogen and the flux of the hydrogen through the foil.
Let X be normally distributed random variable with mean u and variance s2= 4.84. Determine the the size of the sample required to be 90% confident that the error in the estimation is of u is at most 0.4.
After 48 hours, the concentration of carbon 3.5 mm below the surface of the metal is 0.3 wt% C. At what temperature was the furnace operating?
When titrating a standardized solution such as NaOH, why is it important to perform each titration multiple times (think about why it's important to continue titration past the equivalence point.
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