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Chemistry
Suppose that your supermarket is offering
20-count shrimp for $5.99 per pound. How
much should you expect to pay for one dozen
shrimp?
20-count shrimp for $5.99 per pound. How
much should you expect to pay for one dozen
shrimp?
Chemistry
Chemists have determined that 18.0 g of water consists of 6.02 x 10 23 molecule. Assuming that a tbsp holds 14.79 mL of water, determine the number of water molecules the tbsp can hold? (density water = 1g/mL)
Chemistry
An oxide of chlorine has a molar mass of 167g mol-1 and contains 42.5% chlorine by mass. Find it’s molecular formula
Chemistry
You measure the distance between 2 of your favorite stores to be 78,900 centimeters. What is this distance in kilometers?
Chemistry
600km to miles
Chemistry
Calculate the number of grams of solution necessary to provide the following:
a. 68.5 g of sodium chloride from a 12.0% sodium chloride solution
a. 68.5 g of sodium chloride from a 12.0% sodium chloride solution
Chemistry
The density of manganese is 7.21 g/mL, that of calcium chloride is 2.15 g/mL, and that of sodium
acetate is 1.528 g/mL. The three solids were placed in a liquid, in which they do not dissolve. The liquid
has a density of 2.15 g/mL. Which solid will sink to the bottom, which will stay on the top, and which
will stay in the middle of the liquid?
acetate is 1.528 g/mL. The three solids were placed in a liquid, in which they do not dissolve. The liquid
has a density of 2.15 g/mL. Which solid will sink to the bottom, which will stay on the top, and which
will stay in the middle of the liquid?
Chemistry
1) Calculate the number of moles of atoms contained in 2.35grams Lithium?
Chemistry
0.05 mL of 0.04020m sodium salicylate was diluted with iron 3 chloride solution in a 100ml volumetric flask. what is the conc of the iron 3 salicylate in the flask?
Chemistry
Ignition of MgNH4PO4·6H2O produces NH3, H2O and magnesium pyrophosphate, Mg2P2O7. Complete the balance equation for this reaction. If 5.00 g of MgNH4PO4·6H2O are ignited, how many grams of Mg2P2O7 would be formed?
