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How much work is done to move 1.8C of charge from the negative terminal to the positive terminal of a 1.5V battery?

What is the potential difference across the 10 and 20 ohm resistor in the figure there is a battery of 15V with two in series resistors of 10 Ohm and 20 ohm

You have a collection of six 1.0 kilo ohm resistors. what is the smallest resistance you can make by combining them

If 100. mL of 0.400 M Na2SO4 is added to 200. mL of 0.600 M NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.

What is the pH of a buffer system prepared by dissolving 10.70 grams of NH4Cl and 25.00 mL of 12 M NH3 in enough water to make 1.000 L of solution? Kb = 1.80 x 10-5 for NH3.

a very small gas bubble seen in a microscope has a diameter of 1 micrometer. If the pressure is one bar and the temperature is 25 degrees celsius calculate the number of gas molecules in the bubble

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