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The density of a liquid is determined by successively weighing 25, 50, 75, 100 and 125mL of the liquid in a 250mL beaker. If volume of liquid is plotted along the horizontal axis, and total mass of beaker plus liquid is plotted on the vertical axis The x, or horizontal, intercept is the negative value of the weight of the beaker. The y, or vertical, intercept is the weight of the empty beaker. The slope of the line is 1.0 The line will pass through the origin The slope of the line is independent of the identity of the liquid
For each of the following pairs of ions, determine whether a precipitate would form when solutions containing these ions are mixed and write the formulas of any precipitates that should form. Indicate the color of any precipitate that should form.
How many liters of NO(g) are produced when 0.85L of 2.00M HNO3 solution is added to 216 of Ag according to the equation. Which reactant is the limiting reactant?
2N2O5----> 4NO2 + O2. When 25.0g of N2O5 is allowed is decompose. It is found that 10.0g of NO2 forms. What is the percent yield
how many grams of water can be cooled from 45 to 18 by the evaporation of 62 of water? the heat of vaporization of
A 93-L sample of dry air cools from 145 degrees celicus to -22 degrees celicus while the pressure is maintained at 2.85 atm. What is the final volume?
A cell measured by a student was found to be -0.461V against a Ag/AgCl reference electrode (0.222V). What is the potential when measured against SCE and NHE
Briefly comment on the differences in these two concentrations. calculate the [OH] in a 1.0M NaOH solution and in a buffer containing 1.0 M NH3 and 1.0 M NH4Cl.
A 283-g sample of nickel at 100.0°C is placed in 100.0 mL of water (density = 1.00 g/mL) at 22.0°C. What is the final temperature of the water?
A certain indicator, HA, has a Ka value of 0.00050. The protonated form of the indicator is red and the ionized form is blue. What is the pKa of the indicator
container at a temperature of 47C exerts a pressure of 6.3 atm. Calculate the number of moles in the sample
A sample of 1.00 g of lead (II) nitrate is mixed with 130 mL of 0.102 M sodium sulfate solution. Write a balanced chemical equation with phases
Arginine vasopressin is a pituitary hormone. It assists regulate the amount of water in the blood by reducing the flow of urine from the kidneys. An aqueous solution containing 21.6 mg of vasopressin in100.0mL of solution has an osmotic pressure a..
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