How many moles are in 1.2*10^3 grams of ammonia

Radium has a half-life of 1,620 years. In how many years will a 1 kg sample of radium decay and reduce to 0.125 kg of radium? a. 1,620 years b. 3,240 years c. 4,860 years d. 6,480 years

Calculate the number of moles of sodium hydroxide in 8g of sodium hydroxide (NaOH). Na=23 O=16 H=1

Summary Test 10: Chemical Quantities & Calculations 1. (a) Calculate the concentration of a solution if 5 moles of the solute are dissolved to form 10L of solution. n = 5 mol v=1OL P=?

Which class of organic compounds carry genetic information in cells?

What is the only metal that is a liquid at room temperature? a.) mercury b.) lithium c.) magnesium d.) scandium

Draw the sulfur-containing product of the following oxidation reaction between two 2-methyl-1-propanethiol molecules. Draw all hydrogen atoms.

Describe the Earth's layers in relation to density

The first planet to be discovered using mathematical prediction was

P = ? in kPa V = 0.602 L n = 0.00801 mol T = 311 K R = 8.314 L-kPa/mol-K Use numbers as written to calculate. Round to nearest hundredth.

What substances have an arrhenius base?