3. A galvanic cell consisting of a Cu- Cu half cell versus a H - H2 half cell was used to determine the pH of an unknown solution. The unknown solution was placed in the hydrogen half cell and the pressure of the hydrogen gas controlled at 1 atm. The concentration of Cu in the Cu+- Cu half cell was 1.0 M and the emf of the cell at 25°C was determined to be +0.48V a) Draw the cell and label the anode and the cathode. b) Label which electrode is positive and which is negative. c) Write the balanced equation for the reaction. d) Calculate the pH of the unknown solution.

Which one of the following would have approximately the same mass as 40.0 cm³ of lead (d = 11.3 g/cm³)?

A quantity of substance that can be seen would be considered the A level.

Signifi Bb My Bla Digital ng.cen Week Submit Answer HOME References Chemi ploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707785886&snaps... Min Bb NCBM g Use the References to access important values if needed for this question. G The st ✰ C Q Search this The liquid 1-chloropropane has a density of 0.890 g/mL at 20 °C. If a sample of this liquid at 20 °C has a volume of 1.97 L, how many grams of liquid are there in the sample?

the mass of a piece of Zn having a volume of 4.56 cm3 is ________g.

So Why are counting words used instead of the numbers they represent?

( Please see attachment ) Match the following statements to the correct number

2319cm to m

n a bicycle factory, it requires two wheels and one frame to constuct a full bike. If there are 32 bike wheels and 27 frames, which component limits how many bikes you can make? Group of answer choices Bike wheels Bike frames

Type the number 8.75 x 10-4 in standard notation. Express your answer using standard notation.