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If you dilute 25.0 of the stock solution to a final volume of 0.460 , what will be the concentration of the diluted solution?
What is the molality if a solution in which 15 g of I2 is dissolved in 500. g of alcohol?
How many litres of NO are produced at STP when 162 g Ag reacts with excess HNO3
She weighed an empty 4.3 L bulb, then filled it with the gas at 1.60atm and 23.0 C and weighed it again. The difference in mass was 7.9g . Identify the gas.
What mass of AlCl3 can be formed from 5.000 mol NiCl2 and 2.000 mol Al?
In a chemical reaction (unbalanced equation), AsF3 + C2Cl6 -> AsCl3 + C2Cl2F4, the theoretical yield of C2Cl2F4 was calculated to be 1.86 mol. If the percent yield in the reaction was 77.2%,
Calculate H per mole of CaCl2 (in kJ) for the reaction under the above conditions. Aside, the ?H per mole for dilution depends on the process.
A mixture of KBr and NaBr weighing 0.560 gm was treated with aqueous Ag+ and all the bromide ion was recovered as 0.970 gm of pure AgBr. What was the fraction by weight of Kbr in the original sample?
NH4CO2NH2(s)->2NH3(g) +CO2(g) (at equilibrium) starting with only the solid it is found at 40C the total gas pressure is 0.363 atm calculate equilibrium constant Kp
Pre-Lab Assignment- Understanding Activity 3 in this manual and significant figures and uncertainty in measurements in general will help you answer the last two questions
How many moles is a cube of gold with sides of 2.364 cm? Density of gold is 19.30 g/mL What is the atomic mass of gold?what is the name of the commom laboratory equipment.
what is the percent relative error? Please explain by showing work. Are these measurements more precise or more accurate? What is the purpose of repetition in measurements?
A weather balloon at Earth's surface has a volume of 4 L at 285 K and 791 mmHg. If the balloon is released and the volume reaches 4.19 L at 711 mmHg.
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