How many micrograms are in 563 kg?     0.563 μg     5.63 × 107 μg     5.63 × 104 μg     5.63 × 108 μg     5.63 × 1010 μg b?

part a) A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of citric acid solution into a micropicnometer. The student reweighed the micropicnometer and found the mass of the citric acid solution and micropicnometer to be 2.525g.  Calculate the density of the citric acid solution in g/ml. part b) A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of citric acid solution into a micropicnometer. The student reweighed the micropicnometer and found the mass of the citric acid solution and micropicnometer to be 2.525g.    A student titrates 0.101mL of citric acid solution using the standardized 0.1M solution (use the exact concentration calculated from the previous titration problem). The sample required 0.819mL of NaOH solution to reach the end point.   Given the following chemical equation.   NaOH   +  H3C6H5O7 →  Na+ +   H2O  +   C6H5O73-   Given the above information. Calculate the mass of citric…

It has been estimated that there is 4.00 × 10-4 mg of gold per liter of seawater. At price of $19.40/g, what would be the value of the gold in  7.53  km3 (1 km3 = 1 × 1015 cm3) of the ocean?

Please help me with this and let me know what I did wrong thanks

Prospectors are considering searching for gold on a plot of land that contains 1.31 g of gold per bucket of soil.  If the volume of the bucket is 4.67 L, how many grams of gold are there likely to be in 2.38x103 cubic feet of soil? 1 ft3 = 28.317 L

What is 1 teaspoon vanilla extract converted into nanograms? 1 tablespoon of vanilla extract = 14 g 1 nanogram = 10^-9 g

An infant ibuprofen suspension contains 100 mg per 5.0 mL suspension.  The recommended dose is 10 mg of ibuprofen per kg body weight.  If, your child weight 46.31 lbs, how many teaspoons (tsp) should you give your child?  Note that 1 lb = 453.59 g and 5 mL = 1 tsp.

How many 150 mgmg tablets should a 42 lblb child take to receive the dosage of 8.4×10−3 g/kg?

The density of water is 1.00 g/mL. If your swimming pool holds 208,000 gallons of water, what is the set up that outline the steps to find the weight of the water in a filled swimming pool in tons? O 208000 gal x 208000 gal x 208000 gal x 208000 gal x 3.7854 L 1 gal 3.7854 L 1 gal 3.7854 L 1 gal 3.7854 L 1 gal x X X x 1000 L 1 mL X 1L 1000 mL 1000 mL 1 L 1 mL 1000 L 1.00 9 1 mL X X X X 1.00 g 1mL 1.00 g 1 ml 1.00 g 1 mL 1 lb 453.59 g X X X X 1 lb 453.59 g 1 lb 453.59 g 1 lb 453.59 g 1 ton 2000 lb X X X 1 ton 2000 lb 1 ton 2000 1 ton 2000 lb

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