Help With both problems please!
Determine the mass of hydrogen contained in 3.46 × 10^{23} NH_{4}Cl formula units.
Determine the number of molecules of C_{2}F_{4} and moles of fluorine contained in 4.09 moles of C_{2}F_{4}.
mole and the molecules and formula units are having the
following relationship as follows
Help With both problems please! Determine the mass of hydrogen contained in 3.46 × 1023 NH4Cl...
Be sure to answer all parts. For hydrogen, determine the moles and mass contained in a 24.1-L volume at a pressure of 329 torr at a temperature of 300.0 K. moles
Need help with 3 conversions, please include steps to help me understand how everything fits together, thank you: 1. What is the mass of chlorine in 5 grams of copper (III) chloride? 2. Determine the mass of hydrogen, in grams, of 2.6 moles of C5H8O2. 3. Find the mass of Nitrogen, in grams, of 1.00 x 1023 molecules of N2
Can you please help me with these two problems Calculate the number of Hions in 0.244 g of MgH2. X 10! Hions Enter your answer in scientific notation. Elemental sulfur occurs as octatomic molecules, Sg. What mass of fluorine gas is needed to react completely with 25.3 g of sulfur to form sulfur hexafluoride? Mass of F2(g): 45.06 gX
I would like some help with number 2. I'm having trouble with working out the problems. If you chould show your work step by step I could try to understand it. Thank you so much for your help. Molar Conversions Problem Sets i. For each of the following find the number of moies contained in each sample -12 A) 45.3 grams of Sodium Nitide%F)356 x 1012 Forraula Units of Cesium Chloride 5, B) 1.02 x 1034 atoms of Mercury :...
I was wondering if someone could help me with some problems on my test, my teacher allows me to correct them then give them back for 1/2 credit. Along with the correct answer for each id like to know why the answers are wrong and why the new answer is correct. The questiins with a red mark are incorrect. QUINN A coolant widely used in automobile engines is 38.7 % carbon, 9.7 % hydrogen, and 51.6 % oxygen. Calculate the...
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...
please help me with all the questions thank you 38) Determine the final temperature of a gold nugget (mass 376 g) that starts at 398 K and loses 4.85 kJ of heat to a snowbank when it is lost. The specific heat capacity of gold is 0.128 J/g°c A) 133 K B) 398 K C) 187 K D) 297 K E) 377 K 39) A 6.55 g sample of aniline (C6H5NH2, molar mass 93.13 g/mol) was combusted in a bomb...
1. Complete the table. Substance Mass Moles N0. of particle (atoms or molecules) Ar 5.0*10^-4 NO2 1.34*10^20 K 21.4 mg C8H18 2.50 kg 2.Complete The table Substance Mass Moles Number OF particles (atoms or molecules) C6H12O6 19.0 g Pb 8.24*10^21 CF4 24.5 kg C 0.0406 3. Amylose is a "polysaccharide" that plants use to store energy. It is made of repeating subunits of C6H10O5. a. A particular amylose molecule has 2113 of these subunits, what is its molecular formula? Express...
please help me with both A&B. 4. You collect a sample of hydrogen gas in an inverted buret by displacement of water at 230 °C. The buret could not be submerged deep enough in the water bath to equilize pressure. The water level in the buret was 14.65 cm above the water level in the water bath. The volume of gas in the buret was determined to be 32.60 mL. a. If the current atmospheric pressure was 29.45" of Hg,...
please choose best correct 11 The empirical formula for a compound that contained 14.4% hydrogen and 85.6% carbon by mass is CH CH; la 12 If The molecular weight of H,PO, is 97.9 g/mol, the Equivalent weight is.... a 32.6 g per equivalent | 49 g per equivalent b 98 g per equivalent a 196 g per equivalent 130.2 g/cm' is equivalent to a 2000 Kg/m € 200 kg/m b 2 Kg/m a 20 Kg/m 14 Convert 240 K and...