1. A certain ore is 24.6% nickel by mass. How many kilograms of this ore would...
1. A certain ore is 24.6% nickel by mass. How many kilograms of this ore would you need to dig up to have 15.0 g of nickel?
2. How many grams of salt are needed to make 613 g of saltwater that is 31.5% salt by mass?
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1. A certain ore is 24.6% nickel by mass. How many kilograms of
this ore would...
A certain ore is 27.6% nickel by mass. How many kilograms of this ore would you...
A certain ore is 27.6% nickel by mass. How many kilograms of this ore would you need to dig up to have 75.0 g of nickel? TOOLS
A certain ore is 27.7% nickel by mass. How many kilograms of this ore would you...
A certain ore is 27.7% nickel by mass. How many kilograms of this ore would you need to dig upto have SS 0 g kg
1. The radius of a nickel atom is 125 pm. How many nickel atoms would have...
1. The radius of a nickel atom is 125 pm. How many nickel atoms would have to be laid side by side to span a distance of 1.78 mm? 2. The mass of a single iridium atom is 3.19×10-22 grams. How many iridium atoms would there be in 126 milligrams of iridium? 3. The volume of a single platinum atom is 1.12×10-23 cm3. What is the volume of a platinum atom in microliters?
A certain sample of gold ore is 6.50% gold and the rest is other stuff. How...
A certain sample of gold ore is 6.50% gold and the rest is other stuff. How many grams of this gold ore would you need to refine in order to obtain 6.54x 10^46 atoms of gold
Lead can be extracted from a mineral call galena(PbS). An ore contains 3.4% galena by mass. How many kg of ore is neede...
Lead can be extracted from a mineral call galena(PbS). An ore contains 3.4% galena by mass. How many kg of ore is needed if you want to extract 100. grams of lead?
•How many N atoms would be present in 0.378 moles of N2O? •2. If you have...
•How many N atoms would be present in 0.378 moles of N2O? •2. If you have 4.55 x 1016 NO2 molecules, how many moles would you have? •3. How many grams would you need in order to have 0.885 moles of CuCO3? •4. If you have a 15.0 g sample of PF5, how many PF5 molecules would be in your sample? •5. If you have 3.14 x 1019 FeCl2 molecules, how many milligrams would you have? •6. What is the...
1) According to the following reaction, how many grams of hydrogen gas are necessary to form...
1) According to the following reaction, how many grams of hydrogen gas are necessary to form 0.603 moles ammonia? nitrogen (g) + hydrogen (g) ammonia (g) 2) For the following reaction, 6.52 grams of methane (CH4) are allowed to react with 29.8 grams of carbon tetrachloride. methane (CH4) (g) + carbon tetrachloride (g) dichloromethane (CH2Cl2) (g) What is the maximum amount of dichloromethane (CH2Cl2) that can be formed? grams What is the FORMULA for the limiting reagent? What amount of...
17) How many grams of water are in 250.0 g of a 5% by mass solution?...
17) How many grams of water are in 250.0 g of a 5% by mass solution? How many grams of sugar are in this solution? 18) A solution is prepared with 45.0 g of NaCl in enough water to make a 50mL solution. What is the molarity of the solution? 19) If 345 g of MgCl, solution is evaporated and 32.8 g of magnesium chloride are collected. What is the mass percent of the salt in the solution? How much...
1. To get iron out of iron ore (the stuff that actually comes out of the...
1. To get iron out of iron ore (the stuff that actually comes out of the ground), you need to heat it with charcoal (C). The reaction is: 2(Fe2O3) + C .......... 4 Fe + 3 (CO2) How many kilograms of iron would you produce by processing 15.00 kg of iron ore? 2. Burning octene is: C8H16 + 12 (O2) ......... 8 (CO2) + 8 (H2O) How many grams of O2 would you require to burn 2.00 moles of octene?...
How many grams of CaCl2 are needed to make 240.6 g of a solution that is...
How many grams of CaCl2 are needed to make 240.6 g of a solution that is 31.5% (m/m) calcium chloride in water? Note that mass is not technically the same thing as weight, but % (m/m) has the same meaning as % (w/w). How many grams of water are needed to make this solution?
A certain ore is 27.6% nickel by mass. How many kilograms of this ore would you need to dig up to have 75.0 g of nickel? TOOLS
A certain ore is 27.7% nickel by mass. How many kilograms of this ore would you need to dig upto have SS 0 g kg
17) How many grams of water are in 250.0 g of a 5% by mass solution? How many grams of sugar are in this solution? 18) A solution is prepared with 45.0 g of NaCl in enough water to make a 50mL solution. What is the molarity of the solution? 19) If 345 g of MgCl, solution is evaporated and 32.8 g of magnesium chloride are collected. What is the mass percent of the salt in the solution? How much...
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