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The digital thermometer is miscalibrated by +0.15C over its entire range. If the same thermometer is used in part B.2 will the reported moles of solute in the solution be too high, too low or unaffected?
If 85 J of heat are added to a pure gold coin with a mass of 15g , What is its temperature change? Specific heat capacity of gold is 0.128.
A 41 kg person drinks 250. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
A sample of gas at 47°C and 1.03 atm occupies a volume of 2.20 L.What volume would this gas occupy at 107°C and 0.789 atm?
Important information about balanced chemical equation, 1. If 1 mole of Al4C3 has a mass of 144g and carbon has a mass of 12g, what is the atomic mass of aluminum?
a sample of gaseous SiH4 weighing 0.425g is placed in a 580 mL container. The resulting pressure is 0.61 atm.What is the temperature in degree celsius.
How much HCl gas can be produced at STP by reacting 198 g of NaCl with excess H2SO4?NaCl + H2SO4 ! NaHSO4 + HCl.
if you had excess chlorine how many moles of of aluminum chloride could be produced from 17 grams of aluminum
Bonding in some solids does not fit neatly into one of the four categories. Explain why the bonding in Na2CO3 is not purely ionic.
The analysis of a hydrocarbon revealed that it was 85.6281% C and 14.3719% H by mass. When 2.55 g of the gas was stored in a 2.5 L flask at 127.276 C.
Calculate how many moles of nitrogen will be required to make 10.0 moles of NH 3 and calculate what is energy of each pulse If each pulse contains no of photons =1.20 x 10 18
For the reaction 2 HCl + Na2CO3 → 2 NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP
What are the concentrations of each of the ions in a saturated solution of PbBr2, given the Ksp of PbBr2 is 2.1 x 10^-6?
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