As we have to find the number of molecules in mole of H20 so we have to use conversion of moles to molecules.
And conversion says 1mole contains 6.022*10^23 molecules
So we will have to use option D
Fred was asked to solve the problem below in class: How many molecules of H20 are...
what is the predicted product from the following combination reaction? E) none of the above 33) Which of the following produces the characteristic color of a fireworks display? A) atoms exploding B) molecules exploding C) electrons dropping to lower energy levels D) nuclei dropping to lower energy levels E) none of the above Chapter 8 34) How many atoms of cobalt equal a mass of 58.93 g? (Refer to the Periodic Table.) A) 1 B) 27 C) 58.93 D) 59...
You have a balloon containing 1.4 L of gas in it at standard temperature and pressure. Which conversion factor would you use to convert this number to moles? 22.4L/1 mole 6.02 * 1023 L/1 mole 11/22.4 mole 1 mole/224L 11/6.02 x 1023 mole
QUESTION 7 How many molecules are present in one mole of water H20? a. 1.66 x 10-24 3.00 x 10-23 3.24 x 1023 6.02 x 1023 b. C. d.
Mole-Volume Conversions 1. Determine the volume, in liters, occupied by 0.030 moles of a gas at STP. 2. How many moles of argon atoms are present in 11.2 L of argon gas at STE 3. What is the volume of 0.80 mol of neon gas at STP? 4. What is the volume of 2.3 moles of water vapor at STP? Mixed Mole Conversions 1. How many oxygen molecules are in 3.36 L of oxygen gas at STP? 2. Find the...
im 2. The volume of a gas is 3.90 I at 72° C. What will the volume become if the temperature is changed to -18° C at constant pressure? HINT: Use combined law with Tin kelvins. K = C + 2713.16 - On the final, no hints, no equations will be given, just constants and a periodic table. So prepare accordingly. P1V/ (natı) = P2V2/(n2T2) 3. How many moles of helium gas must be added to a balloon currently holding...
how do i solve this? imi 13. What is the volume of 5.00 moles of an ideal gas at 0°C and 1.00 atm? A. 0.00 L STP: 1 mole = 22.44 B. 22.4 L C. 112.L D. 360.L E. 1.13 x 10* L
What is the mass, in grams, of 1.30 molmol of water, H2OH2O? Learning Goal: Be able to convert to mass from a given number of moles. Completing problems such as this is critical for ensuring your success in chemistry. If you would like to get a head start (and we strongly suggest you do if you want to do well in the course) we have provided you with help to learn this concept in the hints. Hints for this problem...
Question 13 (2 points) In a particular stoichiometry problem, you are asked to find the number of moles of a reactant that will form 3 moles of one of the products in the reaction. Which of the following conversion factors would you use for this problem? (2 pts) The molar mass of the reactant Avogadro's number The mole ratio from the balanced equation. The molar volume
LT 7.2: I can do mole conversion problems. 1. What is the volume, in liters, of 0.50 mol of C3H, gas at STP? a. 11.2 L c. 44.0 L 1.22.4 L d. 44.8 L 2. What is the mass of 1.0 mole of (NH2)2SO,? a. 63 g c. 132 g b. 66 g d. 264 g 3. Which volume will be occupied by a gas containing 6.02 x 10" atoms at STP? a. 1.0L c. 11.2L b. 22.4L d. 44.8L...
9:08 LTE Question 18 of 23 Submit How many milliliters of Co gas would be produced by the complete reaction of 2.40g of Cat STP according to the following reaction? Remember 1 mol of an ideal gas has a volume of 22.4 L at STP C(s) + H2O(g) → CO(g) + H2(g) STARTING AMOUNT ADD FACTOR ANSWER 4.48 8.92 g/mol có mL CO 22.4 4480 molc 1920 mol CO 0.001 2.40 LCO 28.01 1000 gCO 6.022 x 1023 gC 12.01...