The work done to compress a gas is 74kJ. As a result, 26kJ of heat is given off to the surroundings. The energy of the gas: A) increases by 48 kJ B) increases by 100kJ C) decreases by 48 kJ D) decreases...

The work done to compress a gas is 74kJ. As a result, 26kJ of heat is given off to the surroundings. The energy of the gas: A) increases by 48 kJ B) increases by 100kJ C) decreases by 48 kJ D) decreases...

At 25 °C, what is the hydroxide ion concentration, [OH–], in an aqueous solution with a hydrogen ion concentration of [H ] = 1.7 × 10–9 M? [OH-] = ? M

You have 37.0 mL of a 0.400 M stock solution that must be diluted to 0.100 M. Assuming the volumes are additive, how much water should you add? ? = mL

What is the concentration of a solution made by diluting 85 mL of 6.0 M HCl to a final volume of 750 mL? ? = M

The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. How many grams of sucrose...

is br a diatomic element

If 11.5 moles of an ideal gas occupies 26.5 liters at 323 K, what is the pressure of the gas? atm =?

If 9.83 moles of an ideal gas has a pressure of 4.64 atm, and a volume of 31.49 L, what is the temperature of the sample? K =?

If 32.5 moles of an ideal gas is at 4.39 atm at 6.40 °C, what is the volume of the gas? L = ?

Calculate the volume, in liters, occupied by 1.45 mol of oxygen gas at STP.

Heliox is a helium-oxygen mixture that may be used in scuba tanks for divers working at great depths. It is also used medically as a breathing treatment. A 7.25-L tank holds helium...

To boil glass, the lime and sand mixture of potash was heated and the off gas spent 125 milliliters of barley hydroxide solution( Density = 1.14 grams/millilitres). The mass of the sediment was 4,925...

I think a formula for this is Va x Na=Vb x Nb

When heated, KClO3 decomposes into KCl and O2. 2KClO3 → 2KCl + 3O2 If this reaction produced 15.0 g of KCl, how much O2 was produced (in grams)? ...

The treatment for iron-deficiency anemia can require an adult female to take a daily supplement of ferrous gluconate, C12H22FeO14, when her diet is not providing enough iron. Answer the following...

The treatment for iron-deficiency anemia can require an adult female to take a daily supplement of ferrous gluconate, C12H22FeO14, when her diet is not providing enough iron. Answer the following...

What is the mass of exactly 1 mol of the following compounds? N2O5 = ? grams Fe(ClO)2 = ? grams Fe(ClO3)3 =? grams

Calculate the formula mass of each compound given below. Keep at least one decimal place in atomic masses from the periodic table. a) H2S2 b) HClO3

If 4.34 g of CuNO3 is dissolved in water to make a 0.580 M solution, what is the volume of the solution? ?=ml

Calculate the molarity of 0.400 mol of Na2S in 1.75 L of solution. Calculate the molarity of 24.1 g of MgS in 861 mL of solution.