Pure copper has a density of 8.9 g cm3. Calculate the volume of a sample of copper that has a mass of 255 g
Pure copper has a density of 8.9 g cm3. Calculate the volume of a sample of copper that has a mass of 255 g
A typical dump truck carried nine cubic yards of gravel (9.00yd^3) a.) What was the capacity of the truck in m? b.) if the delivered cost of the gravel was $8.00 U.S...
A small statue has a mass of 723.4g and displaces 68.6mL of water when added to a container of water. a.) What is the density of the solid used to make the statue? b...
A patient must take 1000mg of a prescription medication three times a day. a.)How many 500mg tablets are required to fill a month prescription? b.) If the cost of a tablet is 17...
a silicon wafer with dimension 16.0cmX16.0cmx0.0400 cm contains 0.849 moles of silico. How many grams of Si does this represent?
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I having alot of trouble with this please help. Show work,explanation ,and answer thanks!
If the earth to moon distance is 229700 miles, what is this in kilometers? what I come up with is 369666.3 which is true but the second part is complicating b) based on this distance,...
sodium chloride is used for melting ice in the winter months. this compound contains 1.54 for every 1.00 g 0f sodium. which of the following mixture would react to produce sodium chloride with no...
Given the reaction: 2Na(s) + F2(g) = 2NaF(s)
Given stock solution of glucose (1000mM), asparagine (100mM) and NaH2PO4 (50mM), how much of each solution do you need to prepare 500mL of a reagent that contains 50mM glucose, 10mM of asparagine...
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lease show me the steps in dimensional analysis
first question idk how to solve)"If each balloon is filled with carbon dioxide gas at 20°C and 1 atmosphere, calculate the mass and the number of moles of carbon dioxide in each balloon at maximum...
A company is studying the use of a compound as a potential antifreeze. When 0.243 g of the compound is dissolved in 25.0 g of water, the freezing point of the solution is -0.201 * Celsius. a...
Calculate the vapor pressure of water above a solution made by adding 15.0 g of lactose (C12H22O11) to 100.0 g of water at 338 K. (vapor pressure of pure water at 338 K is 187.5 torr) P...
0.02 M CuSO4 Can you check my work? Since CuSO4 is a m + nm, it is an ionic compound and will break up into ions in a polar? solution. (0.02 mol CuSO4 / 1.0 L...
At 20°C, a 3.54 M aqueous solution of ammonium chloride has a density of 1.0512 g/mL. The formula weight of NH4Cl is 53.50 g/mol. options: 6.95 3.36 0.297 4.10 18.00 I...
Question #1 A 1335 mL sample of oxygen (O2) was collected by displacement of water at 24 degrees celsius under a total barometric pressure of 425 torr. What mass of dry oxygen was collected? The...