Ineed asap test due in 1 this is a 15 point question! the erlenmeyer flask that was used in the titration below contained 25.0 ml of 0.1 m hcl. if 0.1 m naoh solution was used in this titration, which statement correctly explains point b on the curve? ( 1 ) this is the equivalence point of the curve. ( 2 ) 0.003 mol of oh– ions are present in the flask at this point. ( 3 )0.0005 is the number of excess moles of oh– ions at this point. ( 4 )0.0005 is the number of moles of h+ ions present at this point.

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative