### What is the maximum number of electrons ejected from a metal

Assignment Help Chemistry
##### Reference no: EM13152721

When a metal was exposed to light at a frequency of 3.94× 1015 s-1, electrons were emitted with a kinetic energy of 5.80× 10-19 J. What is the maximum number of electrons that could be ejected from this metal by a burst of light (at some other frequency) with a total energy of 6.48× 10-7 J?

### Previous Q& A

#### Determine the inventory balance

It is the end of the accounting period, and your boss asks you to help determine the inventory balance to place in the company's balance sheet. Explain which physical quantities of inventory that you will include, and which you will exclude.

#### Weighted-average number of shares outstanding

On August 1, Gridley purchased 140,000 shares and immediately retired the stock. On November 1, 200,000 shares were sold for \$25 per share. What is the weighted-average number of shares outstanding for 2011?

#### Find confidence interval for population mean for given level

If he knows that the measurements follow a normal distribution and the standard deviation for this procedure is 1.2 degrees, what is the confidence interval for the population mean at a 95% confidence level?

#### High low method-monthly shipping cost equation

Use the high-low method to estimate Silk Flowers & More's monthly shipping cost equation.

#### Define pair of electrically charged plates

The smallest unit of charge is -1.6× 10-19 C, which is the charge (in coulombs) of a single electron. Robert Millikan was able to measure the charge on small droplets of oil by suspending them between a pair of electrically charged plates.

#### Non-blocking synchronization algorithms

What is an implicit ack, how is it used, and what benet does it provide? What is non-blocking synchronization? What is Type-Stable Memory Management (TSM),

#### What is the distribution of random variable x

we must be able to assign a probability distribution or probability function to the random variable X. So, what is the distribution of X when X ~ bin(n, p)?

#### What is the role of these proteins in phage integration

What is the role of these proteins in phage integration and immunity? What regions of a phage genome do each of these protein bind/interact?

#### Purpose of unrelated business income tax

What is the purpose of the unrelated business income tax?

#### Compute the mole fraction of the solute

Calculate (a) the mole fraction of the solute, (b) the number of moles of solute in the solution, and (c) the molecular mass of the solute.

### Similar Q& A

Determine the entropy change for freezing 6.33 grams of C 2 H 5 OH at 158.7 K? H =-4600 J/mol. Express your answer in units of J/K.

#### What is the final temperature of the water

121 cal of heat are added to 50.0 g of water initially at 15.0 (degrees celsius). What is the final temperature of the water.

#### Compute the percent abundances of the isotopes of rhenium

two naturally occurring isotopes, Re-185 (mass = 184.935 amu) and Re-187 (mass = 186.956 amu). Calculate the percent abundances of the isotopes of rhenium.

#### What is the ph of a solution

what is the pH of a solution of 125ml of 3.5 M of CH3COOH and 25ml of 1.25 M of NaOH ?

#### What is the percent yield

In the reaction between glucose and oxygen 10.0 g of glucose reacts and 7.50 L of carbon dioxide is formed. What is the percent yield if the density of CO2 is 1.26 g/L?

#### Explain the addition of bromine to an equimolar mixture

the addition of bromine to an equimolar mixture of cis- and trans-2-butene generates only three stereoisomers. Explain.

#### What will be the resulting volume of this gas

Find the volume of a gas inside a cylinder - What will be the resulting volume of this gas?

#### What is the density of the liquid

a 26.0 ml sample of a liquid was found to have a mass of 13.0g. what is the density of the liquid?

#### Calculate gibbs free energy

Calculate Gibbs free energy and determine the type of thermodynamic reaction and what type of thermodynamic reaction is shown.

#### Which metal will reach eighty degree celsius first

Five metal rods (Copper, Iron, Nickel, Tin and Zinc), at room temperature, of equal mass are place in a 100 oC water bath. Which metal will reach 80 oC first.

#### What is the value of ksp for ag2so4

What is the value of Ksp for Ag2SO4 if 5.54 g is soluble in 1.00 L of water?

#### How many milliliters of coffee can be obtained

A pound of coffee beans yields 30 cups of coffee (4 cups = 1 ). How many milliliters of coffee can be obtained from 1.0 of coffee beans.