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Question- A 2.00 g sugar cube (sucrose- C12H22O11) is dissolved in a 350 mL teapot containing 80 C water (density of water at 80 C= 0.975 g/mL). What is the molality of the sugar solution?
Please show the entire work. I am thanking you in advance
57.0 mL of a 1.80 M solution is diluted to a volume of 238 mL. A 119-mL portion of that solution is diluted using 117 mL of water. What is the final concentration.
Each 1.000 g of 238U that decays eventually produces 0.866 g of 206Pb. If the half-life of 238U is 4.468 x 10^9 years, what is the age of a mineral that has a 238U/206Pb mass ratio of 2.00?
Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 \rm J/(g\K), as water over this temperature range. I got 1.64 x 10^20 photons for my answer, but i keep getting told that x 10 is not supposed to be in the ..
Here are the effective nuclear charges, Zeff, for the valence electrons of four different atoms. 1.30, 1.95, 2.60, 3.25 In order, these values could belong to what list of elements
To calculate the concentration of protein is it 10/990 or 10/1000? And does the original concentration of solution even matter when calculating the solution concentration?
Which of the following materials will react with an acid to produce a gas. A) NaOH(aq) B) Na2CO3(aq) C) both (a) and (b) D) neither (a) nor (b) Which of the following materials will react with an acid to produce a gas
For the diprotic weak acid H2A, Ka1 = 3.2 × 10-5 and Ka2 = 7.9 × 10-7. What is the pH of a 0.0400 M solution of H2A? What are the equilibrium concentrations of H2A and A2- in this solution
For the Ca2+ and F- ions, write the mathematical relations defining activity of each ion in terms of its concentration and activity coefficient. e) Based on your answers above, derive a relationship for Ksp' in terms of Kspo and activity coefficie..
Total heat evolved by the reaction by adding the heats required to raise both the solution and the calorimeter to the maximum temperature. 5). Heat evolved per mole of Mg 6) Change in enthalpy for the following specific reaction. Be sure to indica..
how many grams of oxygen are collected in a reaction where 231 ml of oxygen gas is collected over water at a
Explain how to write a net ionic equation for what happens when a solid sodium sulfate dissolves when placed in water
tim and a friend left a campsite on a trip down a river in a canoe maintaining a constant speed of 4 miles per hour.
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