tính khối lượng carrageenan, muối ăn, muối photphat và nước cần chuẩn bị để bơm vào 2 tấn nguyên liệu biết hiệu suất thu hồi 125%, tỷ lệ dịch bơm vào nguyên liệu là 40%, nồng độ muối ăn trong sản phẩm 1,8%, photphat 0,3 %, carrageenan 0,4%

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Word equation for k(s) +h2o(l) yield koh (aq) + h2

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.