What mass of CO2 contains the same number of molecules as 3.00g of CCl3F
What mass of CO2 contains the same number of molecules as 3.00g of CCl3F
What mass (in grams) of sulfur dioxide contains the same number of molecules as 45.0 grams of ammonia? Select one: O a. 169 O b. 102 O c. 90.0 O d. 45.0 O e. 73 Use the accounting equation to answer this question. The shareholders' equity of Singh Corporation is $120,000. Its total liabilities are $55,000. What is the amount of Singh's total assets? Select one: O a. $120,000 O b. $175,000 O c. $55,000 O d. $65,000
at the same temperature which of the following gases contains molecules with the slowest average velocity? A) NO2 B) CO C) CO2 D) NO E) the average velocity is the same
A cylinder contains CO2 gas at 70.0°C temperature. What is the RMS speed of the gas molecules? The mass of a CO2 molecule is 7.30x10 26 kg. Tries 0/12 Submit Answer
7) How many grams of NH3 are needed to provide the same number of molecules as in 0.55 g of SF6? mass of NH3: __g 10) A sample of trifluoroacetic acid, C2HF3O2, contains 51.7 g of carbon. Calculate the mass of the trifluoroacetic acid sample. mass: __g
Combustion analysis of 3.00g of dietary supplement "X" compromised of C,H, and O yields 8.872 g CO2 and 3.114 g H2O. If this compound has a molar mass of 416.68 g/mol what is the molecular formula?
What is the mass of 3.01 x 1023 molecules of CO2? 44.0 g 44.0 amu 22.0 g 22.0 amu
Complete the table: Compound Mass Moles Number of molecules CO2 _____ 0.0162 _____ CO _____ 0.0189 _____ BrI 31.4 mg _____ _____ CF2Cl2 1.48 kg _____ _____ Part A: Complete the second column of the table. Enter your answers numerically separated by a comma. Part B: Complete the third column of the table. Enter your answers numerically separated by a comma. Part C: Complete the fourth column of the table. Enter your answers numerically separated by commas.
If there are 0.20 moles in 8.9 grams of CO2, what is the number of CO2 molecules? Use this equation to find the answer: Moles in sample (mol) x Avogadro's number (6.022 x 1023) = Number of sample molecules 0.20 x 1023 1.2 x 1023 8.9 x 1023 20 x 1023
16. Two containers having the same volume and temperature hold the same number of moles of gas. The first container contains He (8). The second container contains UF6 (8). Which of the following is true? (4 points) (a) Some of the UF6 molecules are moving faster than some of the He atoms. (b) The pressure of the He container is higher. (c) The average speed of the UF molecules will be greater than the average speed of the He atoms....
please answer 17,18 & 19???? Question 17 (1 point) What mass of Ba contains the same number of atoms as 3.0 g Li? 0.15 g 3.0 g 59 8 290 g Question 18 (1 point) Use VSEPR theory to predict the molecular geometry of C103 trigonal-planar T-shaped T-shaped bent trigonal-pyramidal Question 19 (1 point) Which of the following molecules or ions will have a Lewis (electron-dot) structure most like that of sulfur difluoride, SF2? 03 Clog O NOT OSO