A 50 mL pycnometer is found to weigh 120 g when empty, 171 g when filled with water, and 160 g when filled with an unknown liquid. Calculate the…
A 50 mL pycnometer is found to weigh 120 g when empty, 171 g when filled with water, and 160 g when filled with an unknown liquid. Calculate the relative density of the unknown liquid.
Explanation
Order documents: enquiry/quotation (buyer asks price), order (buyer requests goods), acknowledgment (seller confirms). These form basis of contract.
Delivery documents: delivery note (accompanies goods), goods received note (buyer confirms receipt), invoice (sellers demand for payment listing items, quantities, prices). Pro forma invoice precedes goods for prepayment.
Payment documents: receipt (proof of payment), statement of account (summary of transactions over period), credit note (reduction for returns/errors), debit note (additional charge). Proper documentation prevents disputes.