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If you need to dispense 4.176 g from a drug available as 1.45 g/mL, find the number of mL required 

Identify the number of significant figures in the following number 1.0001

In a 7.812 g sample of CaCO3, 3.125 g is calcium. Calculate the percent composition of Ca in the sample

When an unknown solid was added into a volumetric cylinder with 25.00 mL of water, the new volume came to 55.00 mL.  If the mass of the solid is 81.00 g, find the density of the unknown material.

Do the following calculation and write the answer in proper number of significant figures 45.56 – 40.34

Identify the name of the following molecule CO2

A student obtained 26.49625 g for a sample of sea water. If the volume of the sample is 25.85 mL, find the density of sea water 

Identify thenumber of significant figures in thefollowing number 56.01058

Which of the following shows the balanced equation for  Copper(II)oxide with sulfuric acid

Identify the name of the following molecule Mg(NO3)2